STELLAR® SR55 Series AC Motor Soft Starters
Contents
1. Book 2 14 1 eSS 2 Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Index Ratings per IEC 60947 4 2 SR55 Index Ratings Model Number A Standard Operation AC 53a X Tx F S SR55 017 to SR55 180 17 to 195 AC 53a 3 5 17 90 5 SR55 242 to SR55 477 24 to 500 AC 53a 3 5 17 90 3 Index ratings AC 53a and AC 53b are specified by IEC standard 60947 4 2 IEC Index Ratings are comprised of Rated Operational Current le Utilization Category Overload Current Profile X Tx and Duty Cycle F S or OFF time Index Rating Example Standard Operation AC 53a Utilization Category per IEC 60947 4 2 17 to 195 AC 53a 3 5 17 20 5 5 L Duty Cycle F S 90 5 90 duty cycle 5 cycles hr if multiple starts hr are required 90 D C requires off time 2 10 of previous run time Overload Current Profile X Tx 3 5 17 3 5 times rated current le for 17s Utilization Category AC 53a controller semiconductors provide squirrel cage motor Start Run and Stop control Rated Operational Current le 17 to 195 controllers with Rated Operational Currents from 17A to 195A Standard Overload Current Profile and Duty Cycle The SRSS has been designed for a specitic Overload Current Figure 1 Standard Overload Current Profiles and Protile and Duty Cycle as shown above in the SR55 Index Duty Cycles2. e Automatic Application setup feature speeds installation by configuring the SR55 for a specific application with one setting Optional accessories EtherNet IP communication module e Modbus TCP communication module e Modbus serial communication splitter e RJ12 to RJ45 adapter e Power terminal IP20 finger guards e Remote touchscreen e Replacement touchscreen e Replacement cooling fans Applications e General purpose applications where traditional across the line starting or wye delta starting would typically be appropriate e Applications with oversized or lightly loaded motors iERS reduces energy usage e Applications requiring lower inrush currents 1 800 633 0405 Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Technical Specifications SR55 Series Full Featured Soft Starters 17A 96A Model SR55 017 SR55 021 SR55 027 SR55 034 SR55 040 SR55 052 SR55 065 SR55 077 Soft Starters SR55 096 Frame Size 1 Price 975 00 982 00 985 00 1 065 00 1 120 00 1 258 00 1 318 00 1 527 00 1 575 00 Rated Current I A 17 21 2 34 40 52 65 7 96 Rated Operational Voltage 200VAC to 480VAC Motor Rating 200V hp 75 10 10 15 20 20 30 Motor Rating 208V hp 15 10 10 15 20 25 30 Motor Rating 230V h
3. Auto Setup Auto Setup www automationdirect com soft starters Warm Trip Time will be reduced to Trip Class 10 value 320A for 13s Set Trip Class to 30 Overload Settings Warm Trip Time will be reduced to Trip Class 10 value Soft Starters 231A for 17s Book 2 14 1 eSS 2 e Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Dimensions Dimensions in mm E THE ADDITION OF OPTIONAL FINGER GUARDS TO SIZE I AND SIZE 2 SR55 SOFT STARTERS ADDS APPROXIMATELY 14MM 0 5IN TO THE SOFT STARTER VERTICAL DIMENSION BUT DOES NOT CHANGE THE CLEARANCE DISTANCE Frame Size 1 SR55 017 to SR55 027 lt DR gt Q ay E Mount soft starter within 30 of vertical 4X o L MOUNTINGS E M6 EARTH CONNECTION Frame Size 1 SR55 034 to SR55 096 7 i lt Mount soft starter within 30 of vertical ar ae PA MOUNTINGS i rave M6 EARTH CONNECTION Book 2 14 1 Soft Starters Prices as of April 15 2015 Check Web site for most current prices LOTTAO Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Dimensions Dimensions in mm Soft Starters 7 THE ADDITION OF OPTIONAL FINGER GUARDS TO SIZE 1 AND SIZE 2 SR55 SOFT STARTERS ADDS APPROXIMATELY 14MM 0 5IN TO THE SOFT STARTER VERTICAL DIMENSION BUT DOES NOT CHANGE THE CLEARANCE DISTANCE Frame Size 2 SR55
4. SR55 156 SR55 180 SR55 242 SR55 302 SR55 361 SR55 414 SR55 477 Frame Size 2 3 Price 1 605 00 2 465 00 2 660 00 2 784 00 2 833 00 3 422 00 4 184 00 4 725 00 Rated Current I A 124 156 180 242 302 361 414 477 Rated Operational Voltage 200VAC to 480VAC Motor Rating 200V hp 40 50 60 19 100 125 150 150 Motor Rating 208V hp 40 50 60 19 100 125 150 150 Motor Rating 230V hp 40 60 60 D 100 150 150 150 Motor Rating 460V hp 100 125 150 200 250 300 350 400 Trip Class programmable 10 to 30 Index Rating per IEC 60947 4 2 AC 53a 35 17 90 5 AC 53a 35 17 90 3 Impulse Withstand Voltage Insulation Voltage Rating Short Circuit Current Rating type 1 kA Control Power Consumption 60W inrush to latch internal bypass relays 4W steady state Control Voltage Range 24VDC 10 15 or 110 230VAC 10 15 Control Fuse external 4A Control Inputs 3 DI 24VDC 110VAC or 230VAC 1 PTC Thermistor 1 Al 0 10VDC 10mA max or 4 20mA Control Outputs 3 N O relay and 1 N C relay 30VDC 0 5A 230VAC 1A resistive 1 AO O 10VDC 10mA max or 4 20mA Start Time Setting Range s 1 to 300 Start Voltage Setting Range 10 to 100 Stop Time Setting Range s 0 to 300 A
5. 124 to SR55 180 lt 5 lt 50 oe 7 Mount soft starter within 30 of vertical 4X M6 CLEARANCE 9 14 J a Z SK SKY MOUNTINGS M8 EARTH CONNECTION Frame Size 3 SR55 242 to SR55 361 SOT lt 30 Mount soft starter within 30 SOT a of vertical 4X M8 CLEARANCE MOUNTINGS 8 07 M8 EARTH CONNECTION 205 0 M10 POWER CONNECTIONS 17 92 19 47 18 53 455 2 494 5 470 6 Book 2 14 1 Soft Starters eSS www automationdirect com soft starters Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Dimensions Dimensions in mm Frame Size 3 SR55 414 to SR55 477 lt 30 TT lt 30 Mount soft starter within 30 of vertical 8 07 M8 EARTH CONNECTION 205 0 M10 POWER CONNECTIONS 17 92 19 47 18 53 455 2 494 5 470 6 2735 160 0 Ventilation for Enclosures SR55 Minimum Clearance Distances in mm SR55 Soft Starter Model Right Front Size 1 SR55 017 to SR55 096 3 75 1 25 Size 2 SR55 124 to SR55 180 3 9 100 1 6 40 1 25 Size 3 SR55 242 to SR55 477 4 9 125 2 4 60 1 25 For heat dissipation the SR55 must not be mounted any closer to another object than these distances E THE ADDITION OF OPTIONAL FINGER GUARDS TO SIZE I AND SIZE 2 SR55 SOFT STARTERS ADDS APPROXIMATELY 14MM 0 5IN TO THE 7 SOFT STARTER
6. J Time Delay Fuse 9 Rating Z 30 40 50 60 70 100 125 UL Listed Inverse Time Delay Circuit Breaker 3 Rating Z 60 60 60 60 60 150 150 Rated Conditional Short Circuit Current l 5 SR55 SR55 SR55 SR55 SR55 SR55 SR35 Model Number 124 156 180 302 361 414 Rated Operational Current 124 156 180 302 361 414 Mersen 6 9 URD 31xx Mersen 6 9 URD 33xx Bussmann 170M40xx Bussmann 170M60xx i Type Bussmann 170M41xx Bussmann 1 70M61xx ei an Fuse Bussmann 170M42xx Bussmann 170M62xx SIBA 20 61xx SIBA 20 63xx Rating A 400 550 550 700 800 900 1000 Class J High Speed Current Limiting Fuse Rating Z 250 350 400 500 600 600 Class J Time Delay Fuse 3 Rating Z A 225 300 350 450 500 500 600 UL Listed Inverse Time Delay Circuit Breaker 3 Rating Z A 350 450 500 700 800 1000 1000 1000 Rated Conditional Short Circuit Current ly kA 10 18 1 Correctly selected semiconductor fuses can provide additional protection against damage to the SR55 unit this is sometimes referred to as type 2 coordination These semiconductor fuses are recommended to provide this increased protection 2 Suitable for use in a circuit capable of delivering not more than I rms Symmetrical Amperes when protected by Class J high speed current limiting 600V rated fuses with a maximum trip rating of Z IEC Type 1 coordination short circuit protection 3 Suitable for use in a circui
7. Pump Submersible Rotodynamic 10 Pump Positive displacement Reciprocating 20 Pump Positive displacement Rotary 20 Pump Jack 20 Rolling mill 20 Roots Blower 20 Saw Band 10 Saw Circular 20 Screen Vibrating 20 Shredder 30 Transformers voltage regulators 10 Tumblers 10 Wood chipper 30 Size centrifuge starter at I A motor FLA x 2 3 Trip Class 30 125 125 150 300 625 200 200 250 500 SR55 361 SR55 414 SR55 477 150 150 150 300 717 250 250 250 900 SR55 414 SR55 477 n a 150 150 150 400 826 250 300 300 600 SR55 477 n a n a For In Delta connections all six motor wires must be available for connection and it is critical to exactly follow the In Delta wiring diagram in the SR55 User Manual or Quick start Guide Nine lead motors CANNOT be connected in the delta The Soft Starter will only sense the Phase Current which is about 58 of the Line Current For In Delta connections a main contactor that is controlled by the Run relay of the SR55 must be used in the incoming power circuit for isolation Circuit breaker isolation alone is not sufficient IERS energy optimizing feature is not available for In Delta connections www automationdirect com soft starters Soft Starters
8. empty the motor may actually reach top speed in 8s If the conveyor is heavily loaded the motor may not reach full speed until 10s For more infor mation please see the SR55 User Manual Appendix B Soft Starter Application Considerations To obtain the most current agency approval information see the Agency Approval Checklist section on the specific part number s web page Book 2 14 S 22 Soft Starters Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Energy Saving iERS Feature Intelligent Energy Recovery System iERS is an advanced SR55 feature that can reduce the energy consumed by lightly loaded or oversized motors iERS matches the power consumption to the load by monitoring and regulating voltage current and power factor during the motor starting and running stages iERS automatically bypasses itself when it is not needed as the motor approaches full load torque current and continues monitoring to re engage itself as needed as the required motor torque current decreases In its most basic function iERS reduces the voltage being fed to the motor when the motor does not need it While the torque and therefore current required by the load stays the same reducing the voltage to the motor reduces excess magnetizing current inside the motor For a more detailed explanation of how iERS reduces magnetizing current and saves energy ple
9. 30 Trip Curves on page SS 24 2 Below select the row with the correct motor full load amps Then select the correct SR55 soft starter to the right based on Trip Class longer start times require a larger starter Notice that there are different Motor Amps columns for starters wired In Line most common and In Delta Select the applicable SR55 part number based on the required Trip Class motor HP and connection type Compressor Reciprocating 20 Compressor Rotary Screw 20 Compressor Rotary Vane 10 Compressor Scroll 10 Ball mill 20 Centrifuge 30 Bow Thruster Zero Pitch 10 Bow Thruster Loaded 20 Conveyor Unloaded 10 Conveyor Loaded 20 Crusher 30 Fan Low Inertia lt 85A 10 Fan High Inertia gt 85A 30 Feeder screw 10 Grinder 20 Hammer mill 20 Lathe machines 10 Mills Flour etc 20 Mixer Unloaded 10 Mixer Loaded 20 Molding Machine 10 Pelletizers 20 Plastic and textile machines 10 Press flywheel 20 DERATING IS NECESSARY IF YOUR APPLICATION REQUIRES MULTIPLE STARTS PER HOUR REFER TO PAGE SS 27 SR55 INCREASED STARTS PER HOUR DERATING SR55 Soft Starters Selection Table per IEC 60947 4 1 2009 Table G 1 Motor Size Soft Starter Size In Line Connection In Delta Connectio
10. In Line or In Delta In Line Ambient Temperature 40 C Ambient Temperature 40 C Altitude 1000m Altitude 1000m Full Motor Load Current 80A Full Motor Load Current 66A Current Limit 4 x 80A 320A Current Limit 3 5 x 66A 231A O COl mNI Dm oO Bow Pp Number of Starts Hour 10 O Cl MNI MD Oo AIIN me Number of Starts Hour 20 Deration Factor from Fig 2 0 83 Deration Factor from Fig 2 0 66 SR55 A Motor FLC Deration Factor 96A SR55 A Motor FLC Deration Factor 100A Determine SR55 from Sizing Guide SR55 096 Determine SR55 from Sizing Guide SR55124 SR55 Configuration SR55 Configuration Select Application Auto Setup Select Application Auto Setup Leave Motor Current 100A maximum Auto Setup Leave Motor Current 100A maximum Auto Setup Set Start Current Limit to 320A 400 of motor FLC Start Current Limit Set Start Current Limit to 231A 350 of motor FLC Start Current Limit Set Overload Level to 88A 110 of motor FLC Overload Settings Set Overload Level to 72A 110 of motor FLC Overload Settings SR55 Alternative Configuration SR55 Alternative Configuration Set Application Set Motor Current to 80A Auto Setup Auto Setup Set Application Set Motor Current to 66A
11. R55 Full Featured Soft Starters SR55 Soft Starter Optional Accessories Finger Guards For SR55 soft starter power circuit line and load side terminals provides IP20 protec tion for soft starter sizes SR55 180 and below frame sizes 1 and 2 Remote Touchscreen Allows remote monitoring Modbus Serial Splitter Includes an SR55 RJ45 RJ12 adapter cable Allows a Modbus network over RS 485 to be constructed as plug and play with standard Ethernet cables Customer must provide cable between RS 485 master and the first splitter Can only be used with one master at a time on the network e g Remote Touchscreen PLC or HMI Splitter includes 3 female to SR55 configuration and control of SR55 soft RJ45 ports 2 Output Words from SR55 to the network starters Since the touchscreen is a master master RS 485 device it can control multiple RJ45 to RJ12 Adapter Supports Explicit and Implicit Messaging SR55 soft starters Includes a 3m Ethernet Allows connection of the Remote Modbus TCP Module Allows an SR55 soft starter to be connected to a Modbus TCP network using TCP IP protocol The communication module supports 4 simultaneous master connections and allows access to all user parameters Modbus TCP Module SR55 CM MODTCP Finger Guards SR55 FG 1 amp SR55 FG 2 Part Number Price Description att cable and an SR55 RJ45 RJ12 adapter sass sPLT 7X TT W Frrr A sd i 6 Modbus Serial
12. Ratings gt The Overload Current Profile is expressed by two symbols X 2 F s x gt and Tx gt SX S Ss X denotes the overload current as a multiple of le and represents S Rg Se S a Z the maximum value of operating current due to starting oper 2 2 g N ou ating or maneuvering under overload conditions cc S Se w For example X 3 5 means that the maximum overload start SR95 017 current allowed is 3 5 times FLC SR55 021 Tx denotes the duration of the controlled overload currents SR55 027 during starting stopping operating or maneuvering SR55 034 For example Tx i7 means that the maximum allowed over SR55 040 load current is permitted for up to 17 seconds only SA55 052 The Duty Cycle is expressed by two symbols F and S which ae describe the duty and also set the time that must be allowed for 5R99 065 cooling SR55 077 F is the ratio of the on load period to the total period expressed SR55 096 as a percentage SR55 124 For example F 90 means that the soft starter is ON tor 90 of SR55 156 l h l EU the time and then ore for 10 of the time between each ala SR55 180 If there are not multiple starts per hour then the Duty Cycle is SR55 242 continuous SR55 302 SR55 361 SR55 414 SR55 477 S is the number of starts or operating cycles per hour For example S 5 means that the soft starter is capable of 5 equally spaced starts per hour These characteris
13. Splitter SR55 SPLT RJ45 to RJ12 Adapter SR55 RJ45 RJ12 SS USB Flash Drive USB FLASH SR55 Optional Accessories Touchscreen Modbus Splitter or other Modbus master to the RJ12 port on top of the SR55 soft starter Adapter has a male RJ12 connector and a female RJ45 connector allows use of standard Ethernet cables USB Flash Drive 4GB USB Flash drive Recommended for SR55 firmware updates and data logging NOTE Other flash drives may not work with SR55 USB FLASH has been successfully tested with SR55 Single SR55 RS 485 network SR55 SPLT optional Multiple SR55 RS 485 network one SR55 SPLT per starter recommended SR55 SPLT res loca sadl OAS 404 0 4 02 07 RS 485 Network Examples For SR55 Models EtherNet IP communication module optional for Stellar SR55 series soft starters dual RJ45 communication ports complete EtherNet IP adapter TCP IP socket interface CIP parameter object support implicit and explicit messaging transformer isolated SA55 CM ENETIP 330 00 Ethernet interface 10 100 Mbps full duplex Modbus TCP communication module optional for Stellar SR55 series soft starters dual RJ45 communication ports complete Automation Direct Soft Starters SR55 CM MODTCP 330 00 Modbus TCP server up to 256 bytes of I O data in each direction transformer isolated interface 100 Mbps full duplex TCP IP socket interface supports 4 simultaneous mast
14. VERTICAL DIMENSION BUT DOES NOT CHANGE THE CLEARANCE DISTANCE WHEN FITTING SR55 INTO AN ENCLOSURE VENTILATION MUST BE PROVIDED IF THE HEAT OUTPUT OF THE UNIT IS GREATER THAN THE ENCLOSURE WILL DISSIPATE USE THE FORMULA AT RIGHT TO DETERMINE THE FAN REQUIREMENT AN ALLOWANCE HAS BEEN INCORPORATED INTO THE Q 4xWt T nax Tamb Q Volume of air cubic meters per hour m h FORMULA SO THAT THE FIGURE FOR Q IS THE AIR DELIVERY Wt Heat produced by the unit and all other heat sources within the i IN THE FAN SUPPLIERS DATA enclosure Watts THE POWER DISSIPATION OF THE THYRISTORS ARE AT THEIR T a Maximum permissible temperature within the enclosure PEAK WHEN THE SR55 IS IN ENERGY SAVING MODE IERS 50 C for a fully rated SR55 THEREFORE CAUSING THE MOST HEAT GENERATED FROM o i Temperature of the air entering the enclosure C E E aad If you prefer to work in CFM substitute F for C Q is now WITH THE FORMULA in CFM WATTS SR55 1 2 x SR55 CURRENT RATING X 3 amb Book 2 14 1 eSS 30 Soft Starters 1 800 633 0405 EtherNet IP Module The EtherNet IP communication module is intended to be installed in the SR55 option slot and allows the SR55 to be connected to an EtherNet IP network The interface offers the following functionality e CIP Parameter Object Support 2 Input Words from the network master Prices as of April 15 2015 Check Web site for most current prices Stellar S
15. al or remote control e Integrated Modbus RTU or optional Modbus TCP or EtherNet IP communication e Optional remote touchscreen available e Programmable analog I O digital inputs and relay outputs for remote control e Fault record history of last 10 trips using the download fault log will give faults and running data for the life of the SR55 e IP20 panel mount with optional finger guards for frame sizes 1 and 2 soft starters e Two year warranty e CE ETL CSA C22 2 No 14 and UL 508 REACH RoHS Soft Starters Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters Advantages Mechanical Advantages e Smaller physical size than equivalent SR44 models even with the built in bypass contactors e Smooth acceleration reduced mechanical shock and starting stress e Extend lifespan of mechanical drive train components e Fluid couplings and some clutches can be eliminated Electrical Advantages e Reduced starting currents and spikes e More motors or larger motors can be started from lower capacity power sources Allows motors to be started more frequently Economic Advantages e Lower overall costs for new installations e Bypass relays built in e Reduced maintenance and replacement of mechanical drive train components e Reduced starting current lowers demand charges IERS intelligent Energy Recovery System reduces electrical power costs
16. ase see Chapter 4 Principles of IERS in the SR55 User Manual Many if not most AC motor applications are oversized when the motor FLA is compared to actual running current Oversizing can be due to non optimal design but can also occur intentionally many applications need a larger motor for starting reasons for available headroom for future expansion etc Other applica tions may have different motor demands based on loading think of an up escalator A fully loaded escalator requires a lot of torque current while an empty escalator requires significantly less torque current to maintain speed When the escalator is empty the motor will not draw as much current as its FLA When the SR55 senses this reduced torque load the starter will reduce the voltage to the motor This reduced voltage results in reduced magnetizing current in the motor and thereby saves energy Note that the current required by the load stays the same only magnetizing current is reduced STELLAR Starte soft www automationdirect com soft starters How Much Will iERS Save The savings realized by using iERS will vary by application how heavily the motor is loaded and the losses internal to the motor While these factors can be difficult to quantify the following esti mating tools and examples may help predict your potential savings Estimating Energy Savings Basis for estimations 3 phase squirrel cage induction motor standard t
17. e 5 30 Overview SR55 full featured solid state Soft Starters provide many advantages when used instead of electromechanical contactors to control 3 phase AC induction motors The SR55 Soft Starters are fully digital and use thyristors in all three motor phases for controlled reduced voltage motor starting and stopping SR55s have an Automatic Application Setup that fully configures the starter for a specitic application with one entry SR55s also have a built in internal bypass and patented iERS intellegent Energy Recovery System that reduces energy costs when used on lightly loaded and oversized motors Features e 17 477A 200 480VAC e 24VDC 110VAC or 230VAC selectable control voltage e Internally bypassed during run e Full three phase motor control e Built in SCR failure protection Full motor overload protection e Full data logging fault records motor current operational status etc e Fully programmable e Easily and separately adjustable motor start and stop times IERS intelligent Energy Recovery System saves energy on lightly loaded motors e Can be connected in the delta allowing use of a smaller Soft Starter no iERS optimizing with in delta connections e Can be used for motor reversing with external contactors e Suitable for a wide variety of motor loads e Touchscreen with easy to navigate menu structure and quick automatic application set up e Can be used with loc
18. er connections Finger guards replacement for size 1 Stellar SR55 series soft starter power terminals Provides IP20 protection rating Package of 2 017 thru 096 SR55 FG 1 SR55 FG 2 24 00 24 00 Finger guards replacement for size 2 Stellar SR55 series soft starter power terminals Provides IP20 protection rating Package of 2 124 thru 180 Touchscreen optional remote for Stellar SR55 series soft starters Used to remotely monitor configure and control SR55 series units without opening enclosures Rated for NEMA 4 4X enclosures no external power wiring required Includes 3m RJ45 cable and SR55 RJ45 RJ12 adapter Serial Modbus communication splitter optional for Stellar SR55 series soft starters Used for creating a Modbus network with multiple SR55 series soft starters Uses 3 serial RJ45 connectors for upstream downstream connectivity and connection to the starter RJ45 female to RJ12 male adapter optional for Stellar SR55 series soft starters USB Flash drive SanDisk 4GB SanDisk P N SDCZ50 004G A46 SR55 KPD REM 300 00 SR55 SPLT SR55 RJ45 RJ12 USB FLASH 105 00 9 00 20 00 Book 2 14 1 Soft Starters eSS 3 1 www automationdirect com soft starters SR55 KPD REM Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Accessory Dimensions Dimensions in mm Remote Touchscreen Dime
19. mbient Operating Temperature 20 C 4 F to 50 C 122 F above 50 C derate linearly by 4 of SR55 per C to a maximum of 60 C 140 F Transportation amp Storage Temperature 20 C to 60 C 4 F to 140 F continuous Humidity max 85 non condensing not exceeding 50 40 C 104 F Maximum Altitude 1 000m 3 281 ft above 1000m derate by 1 of SR55 per 100m 328ft to a maximum altitude of 2000m 6562ft Environmental Rating Main Circuit IP00 IP20 with optional finger guards for sizes 1 amp 2 only Control Circuit IP20 Weight Ib kg 12 1 5 5 14 3 6 5 39 3 16 0 46 7 21 2 Agency Approvals CE CSA 22 2 No 14 ETL tested ETL 4004274 REACH RoHS UL508 ETL tested CE REACH RoHS AkV 480V 10KA 120W inrush 4W steady state 110VAC 10 15 eS Refer to Selection Table for deratings by application and overload trip class Start Time and Stop Time define the length of time the soft starter varies the voltage to the motor While a Variable Frequency Drive AC Drive can define motor speed throughout the acceleration and deceleration ramps by varying its output frequency a soft starter only controls average voltage to the motor and cannot accurately control motor speed Therefore motor speed during acceleration and deceleration can vary with load Example a conveyor soft starter could have a Start Time of 10s If the conveyor is
20. n Application Trip Class HP 200V 208V 230V I A 460V HP 200V 208V 230V Class 10 Class 20 Class 30 3 5 5 10 29 19 19 10 20 SR55 017 SR55 021 SR55 027 9 5 5 15 36 10 10 10 29 SR55 021 SR55 027 SR55 034 19 10 a 20 47 10 15 15 30 SR55 027 SR55 034 SR55 040 10 10 10 29 99 1D 15 20 40 SR55 034 SR55 040 SR55 052 10 10 10 30 69 20 20 29 50 SR55 040 SR55 052 SR55 065 15 15 15 40 90 25 30 30 60 SR55 052 SR55 065 SR55 077 20 20 20 50 113 30 30 40 19 SR55 065 SR55 077 SR55 096 20 25 29 60 133 40 40 50 100 SR55 077 SR55 096 SR55 124 30 30 30 5 166 50 50 60 125 SR55 096 SR55 124 SR55 156 40 40 40 100 215 60 19 19 150 SR55 124 SR55 156 SR55 180 50 50 60 125 270 19 19 100 200 SR55 156 SR55 180 SR55 242 60 60 60 150 312 100 100 125 250 SR55 180 SR55 242 SR55 302 19 19 19 200 419 150 150 150 300 SR55 242 SR55 302 SR55 361 Pump Submersible Centrifugal 10 100 100 100 250 523 150 150 200 450 SR55 302 SR55 361 SR55 414
21. nsions amp Panel Mounting Cut Out Dimensions Replacement Fan SR55 FAN 6 Part Number Price Diameter hole in panel 0 90 23 4x Mounting Holes No 6 self tapping Screws or M3 5 Machine screws 5 30 134 0 Replacement Fan SR55 FAN 7 SR55 Spare Replacement Parts Description Replacement Fan SR55 FAN 8 For SR55 Models SR55 FAN 2 13 00 Cooling fan replacement for size 1 Stellar SR55 series soft starters 60 x 60 x 15 mm 017 thru 096 SR55 FAN 3 15 00 Cooling fan replacement for size 2 Stellar SR55 series soft starters 80 x 80 x 15 mm 124 SR55 FAN 6 15 00 Cooling fan replacement for size 2 Stellar SR55 series soft starters 80 x 80 x 20 mm 156 thru 180 SR55 FAN 7 35 00 Cooling fan replacement for size 3 Stellar SR55 series soft starters 120 x 120 x 25 mm 242 thru 361 SR55 FAN 8 93 00 Cooling fan replacement for size 3 Stellar SR55 series soft starters 171 x 151 x 151 mm 414 thru 477 SR55 KPD 84 00 Touchscreen replacement for Stellar SR55 series soft starters all These items are exact replacements for the comparable part that is originally installed on the applicable SR55 Fans include wiring connectors Book 2 14 1 eSS 32 Soft Starters 1 800 633 0405
22. p 15 10 10 15 20 25 30 Motor Rating 460V hp 20 25 30 40 50 60 75 Trip Class Index Rating per IEC 60947 4 2 programmable 10 to 30 l AC 53a 3 5 17 90 9 Impulse Withstand Voltage 4kV Insulation Voltage Rating Short Circuit Current Rating type 1 kA 5 Control Power Consumption Control Voltage Range 480V 60W inrush to latch internal bypass relays 4W steady state 24VDC 10 15 or 110 230VAC 10 15 Control Fuse external 4A Control Inputs 3 DI 24VDC 110VAC or 230VAC 1 PTC Thermistor 1 Al 0 10VDC 10mA max or 4 20mA Control Outputs 3 N O relay and 1 N C relay 30VDC 0 5A 230VAC 1A resistive 1 AO 0 10VDC 10mA max or 4 20mA Start Time Setting Range s 1 to 300 Start Voltage Setting Range 10 to 100 Stop Time Setting Range s 0 to 300 Ambient Operating Temperature 20 C 4 F to 50 C 122 F above 50 C derate linearly by 4 of SR55 per C to a maximum of 60 C 140 F Transportation amp Storage Temperature 20 C to 60 C 4 F to 140 F continuous Humidity max 85 non condensing not exceeding 50 40 C 104 F Maximum Altitude 1 000m 3 281ft above 1000m derate by 1 of SR55 per 100m 328ft to a maximum altitude of 2000m 6562ft Main Circuit IP00 IP20 with optional finger guards for sizes 1 amp 2 only Control Circuit IP20 No corrosive gases permitted Environmental Ra
23. t capable of delivering not more than I rms Symmetrical Amperes 480 Volts maximum when protected by Class J time delay fuses with a maximum rating of Z or by a circuit breaker with an interrupting rating not less than Z rms Symmetrical Amperes 480 Volts maximum as in table Motor overload cold trip curves SR55 Soft Starter Overload Trip cane The SR55 soft starter provides motor overload protection which can muon be configured through the touchscreen Overload trip settings are determined by the Motor Current setting and the Trip Class setting Trip class choices are class 10 class 20 and class 30 The SR55 soft starters are protected using full 2T motor overload with memory a 100 O Q Q 77 v ad 2 10 1 1 1 5 2 2 5 3 3 5 4 4 5 Multiple of Motor FLA Class10 Class20 Class30 Book 2 24 eSS 2 Soft Starters Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Selection Soft Starters SR55 Soft Starters O L Trip Classes a Default 10 Heavy 20 Agitator 10 Compressor Centrifugal 20 SR55 Soft Starter Selection Steps 1 Determine the required trip class based on the motor load and required start time See examples to the left refer to the definitions of Class 10 20 and
24. this extreme appli cation iERS reduced average power consumed by the pump jack over 30 minute intervals from 23 99kW down to 19 85kW This is a 17 reduction in consumed power Again this is an extreme example and is not indicative of what a typical application may save iERS has been installed on metal grinding equipment A machine that was retrofitted with an iERS starter had a 75hp motor on a spindle that typically ran at about 20 30 of full load iERS was able to reduce the energy consumed by this motor by 13 15 Book 2 14 1 Soft Starters eSS 2 Automation Direct Soft Starters Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Overcurrent Protection CUSTOMER SUPPLIED EXTERNAL POWER CIRCUIT ISOLATION DEVICES CONTACTORS DISCONNECT SWITCHES FUSIBLE DISCONNECTS SHUNT TRIP CIRCUIT BREAKERS ETC AND SHORT CIRCUIT PROTECTION DEVICES CIRCUIT BREAKERS FUSES ETC ARE REQUIRED FOR USE WITH SR55 SOFT STARTERS External Short Circuit Protection Required for SR55 SR55 Model Number SR55 SR55 H wee SR55 SR55 SR55 Rated Operational Current 40 52 Mersen 6 9 URD 30xx Bussmann 170M30xx Semiconductor Fuse Type Bussmann 170M31xx class aR Bussmann 170M32xx SIBA 20 61xx Rating 100 100 160 160 160 200 200 Class J High Speed Current Limiting Fuse 2 Rating Z 30 45 60 70 90 110 125 Class
25. tics are summarized in Figure 1 Book 2 14 eSS 1 26 Soft Starters 1 800 633 0405 Automation Prices as of April 15 2015 Check Web site for most current prices tema Stellar SR55 Full Featured Soft Starters SR55 Increased Starts per Hour Derating If more than the standard number of starts hour is required the SR55 must be derated To derate for more starts hour the motor full load current must be less than the SR55 current The relationship between the SR55 deration and the starts hour is given below in Figure 2 and the two examples that follow This assumes that the SR55 is still operating at the same duty F as given in Figure 1 Soft Starters Figure 2 SR55 Starts Hour Deration Deration Curve 0 85 Starts Hour 0 8 Deration Factor Motor Full Load Current SR55 Current Starts Hour Deration Factor 138 24 In starts hr 100 where In starts hr is the natural log of the of starts hour Example Deration Factor for 10 starts hr 138 24 In 10 100 0 83 SR55 Selection SR55 Selection Deration Factor 0 83 0 73 0 66 0 61 0 56 0 53 0 50 Application Loaded Conveyor Application Agitator Trip Class Duty 20 90 Trip Class Duty 10 90 In Line or In Delta In Line
26. ting Weight Ib kg 6 6 3 0 7 7 3 5 iid Agency Approvals CE CSA 22 2 No 14 ETL tested ETL 4004274 REACH RoHS UL508 ETL tested Refer to Selection Table for deratings by application and overload trip class Start Time and Stop Time define the length of time the soft starter varies the voltage to the motor While a Variable Frequency Drive AC Drive can define motor speed throughout the acceleration and deceleration ramps by varying its output frequency a soft starter only controls average voltage to the motor and cannot accurately control motor speed Therefore motor speed during acceleration and deceleration can vary with load Example a conveyor soft starter could have a Start Time of 10s If the conveyor is empty the motor may actually reach top speed in 8s If the conveyor is heavily loaded the motor may not reach full speed until 10s For more information please see the SR55 User Manual Appendix B Soft Starter Application Considerations To obtain the most current agency approval information see the Agency Approval Checklist section on the specific part number s web page Book 2 14 1 eSS 21 www automationdirect com soft starters Soft Starters Prices as of April 15 2015 Check Web site for most current prices Stellar SR55 Full Featured Soft Starters SR55 Soft Starter Technical Specifications SR55 Series Full Featured Soft Starters 124A 477A SR55 124 Model
27. ype e Supply 380 to 440V 50Hz e Supply voltage gt minimum working voltage on motor rating plate e Operation 30 rated nameplate full load Energy Savings Estimations Table 1 4 Pole Motor Size kW HP Estimated Savings rated kW 5 75 10 225 30 65 55 75 35 110 25 110 15 Less than More than Energy Savings Modifying Factors Table 2 Motor Poles Motor Slip Number of Poles Add kW Slip Add kW 0 5 0 5 0 5 0 2 0 5 3 3 1 5 Examples of estimated savings 1 37 5 kW 4 pole motor From Table 1 use the estimated savings figure for the next higher rating i e 55 kW 3 5 of full rated kW The savings would be approximately 3 5 x 37 5 kW 1 3125 kW Savings kW saved 30 loaded motor kW 1 3125 kW 30 x 37 5 kW 12 2 37 5 kW 2 pole motor From Table 1 use the estimated savings figure for the next higher rating i e 55 kW 3 5 of full rated kW From Table 2 apply the pole number factor of 0 5 The savings would be approximately 3 5 0 5 x 37 5 kW 1 125 kW Savings kW saved 30 loaded motor kW 1 125 kW 30 x 37 5 kW 10 Real world applications iERS has been installed in many pump jack applications for oil drilling etc The cycle of a pump jack is extreme for part of the cycle the pump requires near full torque In the other part of the cycle the pump jack is very lightly loaded In
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