User Manual - Arc Suppression Technologies
Contents
1. 15A max 50 C to 85 C motor loads 15A max up to 50 C 10A max 50 C to 85 C tungsten inductive ballast and capacitive loads NOTE See de rating charts below CLAMPING VOLTAGE 820V 510V 510V CONTACT CYCLING maximum cycle time per relay specifications DO NOT EXCEED relay operating specifications DIMENSIONS length 2 380in 6 045cm width 1 070in 2 718cm height 0 740in 1 880cm ENVIRONMENTAL operating temperature 40 C to 85 C 40 F to 185 F storage temperature 50 C to 125 C 58 F to 257 F humidity 5 to 95 non condensing NOTE See de rating charts below INTERFACE WIRES across contacts two 2 W1 W2 non polarized LEAKAGE CURRENT 4mA nominal 6mA nominal 10mA nominal MOUNTING orientation any number of holes two 2 hole diameter 0 150in 6 screw 3 81mm OPERATING VOLTAGE 120Vac nominal 240Vac nominal 480Vac nominal POWER FREQUENCIES typical operating frequencies 50Hz 60Hz POWER ON load current passthrough Y cycle maximum POWER TYPE AC alternating current RELIABILITY MTBF 438 000 hours MIL HDBK 217F TERMINATION 0 250in quick connect male terminals non insulated TERMINATION MATE 0 250in quick connect female terminals fully insulated WEIGHT net weight 10z 28g wire length Oin to 12in 16AWG wire length between Nosparc and contact terminals WIRE G2. any infringement of patents or other intellectual property rights owned by others which may result from such application or use Purchasers are solely responsible for the choice selection and use of the product described herein and Arc Suppression Technologies assumes no liability whatsoever relating to the choice selection or use of this product No license expressed or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by Arc Suppression Technologies for the use of such third party products or services or any intellectual property contained herein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein Arc Suppression Technologies only accepts products for repair or return that are accompanied by a Return Material Authorization number from the appropriate distributor or sales representative Please refer to your original purchase agreement or contact your distributor or sales representative for return policy information SAFETY INFORMATION OVERVIEW We use note caution and warning symbols throughout this book to draw your attention to important operational and safety information WARNING describes an alert with information that is important for protectin
3. 14AWG minimum for less than 12 to 24 of wire length recommended If longer cable lengths are needed then the wire between NOsparc MHXAC terminals and the contact terminals gauge must be increased according to the following e 12AWG minimum for less than 24 to 36 of wire length recommendation between NOsparc MHXAC terminals and the contact terminals e 16AWG minimum for less than 0 to 12 of wire length between NOsparc MHXAC terminals and the contact terminals NOsparc System Wiring Diagram Circuit Breaker L 1 2 or 3 Fuse Main Shut Off Switch Process Control Controller Relay Contact Input s Y Thermal L m t Thermocouple O AC Power Load Neutral or Lt1 2 or 3 For simplicity reasons one phase shown only PART NUMBER AND PRODUCT DESCRIPTION Example Shown NOsparc MHXAC1F480 MH X A C 1 F 4 8 0 Maximum Circuit Connector Voltage Fuse Rating F FASTON 120 120V MH 50A 240 240V 480 480V Page 6 of 9 ARC SUPPRESSION TECHNOLOGIES SPECIFICATIONS NOsparc MHXAC User Manual NOsparc MODEL MHXAC1F120 MHXAC1F240 MHXAC1F480 ARC SUPPRESSION duration Y2 AC power cycle maximum CIRCUITS POLES one 1 unit per pole multiple units required for multi pole relays CIRCUIT BREAKER FUSE RATING 50A max up to 50 C 35A max 50 C to 85 C resistive general purpose and pilot duty loads 20A max up to 5 C
4. AAA 8 eCASE DIMENSIONS ePANEL MOUNTING DEFI SL SP a rrr r ooo NN cae sea ance en Reha bine ae beth 8 WARRANTY asta llanta ia 9 TESRINIC A SURRORD sarao RN ARONA E ANI ITA dida EEE 9 CONDIIONSFORSERVIGE arrasan tad 9 RETURN POLIS aia A A Z J DT TT 9 RETURN MATERIAL AUTHAORIZATION AND PROCESS ria LO dean Li ii 9 CONTACT INFORMATIKO oree E NAAA A A RA AS 9 Page 2 of 9 ARC SUPPRESSION TECHNOLOGIES IMPORTANT NOTES This document provides information required to install a NOsparc arc suppressor You must read and understand this document before installing this device If you have any problems with your installation please refer to Technical Support contact information on the last page of this manual TRADEMARKS e NOsparc and the flame logo are registered trademarks of Arc Suppression Technologies LLC e UL is a trademark of UL LLC All trademarks are property of their respective owners APPLICABLE DOCUMENTS Aus File No E346457 The above UL Recognized Component mark indicates that UL LLC has certified the compliance of the NOsparc MHXAC1F units included in this manual as Component Auxiliary Devices for both Canada and the United States Underwriters Laboratories UL 508 Industrial Control Equipment CSA C22 2 No 14 Industrial Control Equipment LIFE SUPPORT Arc Suppression Technologies products are specifically NOT authorized for use as critical components in life support
5. AC User Manual DEFINITIONS Arc Current Arc Suppression Duration Break Current Cycle Time Inductive Load Inrush Current Inrush Current Limiter Power On Passthrough RC Snubber Snubber Suppression Varistor Clamping Voltage Maximum Varistor AC Voltage Page 8 of 9 Plasma flow supported between open contacts Time during which the electrical current contact arc is arrested Device designed to reduce contact arcing Action of a contact which transitions from close to open One or more brief transition s to the OPEN state as the contact is closing or to the CLOSE state as the contact is opening Contact current during Break Time between successive ON or OFF contact states Motor or transformer form the main part of the load Resulting turn on current when powering an inductive capacitive or tungsten load Device intended to limit the amount of turn on current when powering an inductive capacitive or tungsten load Action of a contact which transitions from open to close Contact current during Make Metal Oxide Varistor Mean Time Between Failures Current passing through the arc suppressor during initial power up Device with resistor and capacitor in series across contact Device designed to limit voltage
6. AUGE wire length 12 in to 24in 14AWG wire length between Nosparc and contact terminals wire length 24in to 36in 12AWG wire length between Nosparc and contact terminals NOTE Wire lengths over 3 feet are NOT recommended CIRCUIT BREAKER CIRCUIT FUSE DE RATINGS The charts below depict respective circuit breaker circuit fuse Safe Operating Areas SOA by load type Circuit Breaker Fuse Rating A o 8 amp Oo a b Resistive General Purpose amp Pilot Duty Loads 0 50 85 Temperature C 125 70 y 70 Tungsten Inductive Ballast Motor Loads amp Capacitive Loads Circuit Breaker Fuse Rating A Circuit Breaker Fuse Rating A 50 85 Temperature C 125 50 85 Temperature C Page 7 of 9 125 ARC SUPPRESSION TECHNOLOGIES CASE SPECIFICATIONS AND MOUNTING CASE DIMENSIONS PANEL MOUNTING For ease of installation NOsparc MHXAC units may be stacked up to three 3 high by threading a 6 screw through the mounting holes in the flanges of each unit as shown below X gt 1 Ay 4 d amp gt Ji L LA IA K Ji NI gt J b DIN RAIL MOUNTING DIN rail mounting of either single of stacked arc suppressors can be accomplished by adding a single DIN rail mounting adaptor accepting a 6 screw to each side of the single arc suppressor or stacked arc suppressors NOsparc MHX
7. Osparc MHXAC across the following components e Fuses e Circuit breakers e Safety interlocks e Thermal limits DO NOT use NOsparc MHXAC either above or below its ratings or specifications DO NOT operate the contacts to which the NOsparc MHXAC is attached above or below their ratings or specifications PRODUCT DESCRIPTION NOsparc MHXAC products AC power applications are a family of two terminal contact arc suppressors that attach across the contact points of a power relay contactor or snap action switch The products are designed to protect the contact points from premature destruction due to contact current arcing BACKGROUND Electromechanical power relays contactors or snap action switches operating without load current may have potential mechanical lifetimes of 10M 20M or even more operations cycles This mechanical lifespan however is reduced to as few as 5 000 operations to perhaps 100 000 operations depending on application and specifications when operated under power This is mainly caused by the deleterious effects of load current arcing across the contacts as they break or bounce Page 4 of 9 ARC SUPPRESSION TECHNOLOGIES NOsparc MHXAC User Manual Arc Suppression Timing Diagram CHARACTERISTICS Current Through Contact ounce TI NOsparc MHXAC extends contact life without requiring any Make Contact Closed Break Contact Open external control wires power wires or any other wires other than Vol
8. TECHNOLOGIES jarc NOsparc MHXAC1F120 MHXAC1F240 MHXAC1F480 PATENTS AND PATENTS PENDING y Contact Arc Suppressor Contact Arc Suppression for AC Power Relays Contactors and Snap Action Switches User Manual Aus 104 0017E ARC SUPPRESSION TECHNOLOGIES NOsparc MHXAC User Manual O 2014 Arc Suppression Technologies LLC All rights reserved TABLE OF CONTENTS IMPORTANT NOTES sscivadiana ose idr rrr __ _n_n Si tds 3 eTRADEMARKS eLIFE SUPPORT eAPPLICABLE DOCUMENTS eL EGAL NOTICE SAFE INFORMATIONS OVERVIEW tai dt A A hed t h h b nan x S y neh p k wets 4 eWARNINGS eCAUTIONS eSAFETY eNOTES Pro DUG TIDESCRIP TRIN ae a ae n A a E EEA E 5 eBACKGROUND eCHARACTERISTICS eARC SUPPRESSION AND CONTACT PROTECTION eRELAY END OF LIFE EOL RE 9 r gt gt gt w gt ww gt w gt gt p gt pop gt o p gt obb bbvg ccgggX pr y aag a 6 q PC IS aaa SSI RIO 7 eARC CURRENTS eLEAKAGE CURRENT eARC SUPPRESSION eMOUNTING eCIRCUITS POLES eOPERATING VOLTAGE eCIRCUIT BREAKER FUSE ePOWER ON eCLAMPING VOLTAGE ePOWER TYPE eCONTACT CYCLING eRELIABILITY eDIMENSIONS eTERMINATION eENVIRONMENTAL eTERMINATION MATE eFREQUENCIES eWEIGHT eINTERFACE WIRES eCIRCUIT BREAKER CIRCUIT FUSE RATINGS PARTNUMBER AND PRODUCT DESCRIPTION accidental dial na b kan a neden nine Madde kewelaxe aa b ka d n a K 7 CASE SPECIFICATIONS ANDO MOUNT ES A cater aia taal ak
9. TION AND PROCESS Authorization prior to returning product is required Please refer to your original purchase agreement or contact your distributor or sales representative for an RMA number and instructions before returning product NOTE Terms and conditions vary by distributor and representative Please refer questions to your distributor or sales representative TECHNOLOGIES 7900 INTERNATIONAL DRIVE SUITE 300 BLOOMINGTON MN 55425 612 928 5546 www ArcSuppression lechnologies com Your Comments We welcome your comments or suggestions on this User s Manual Page 9 of 9
10. c 2 Contact fails open suppressor is then disabled when the contact is open until it is 3 Contact fails with resistance again enabled at contact close to await the next arc ignition point Pictures 2011 Arc Suppression Technologies all rights reserved 1 Contact fails closed This inevitable EOL can be extended even further with the proper This allows an arc suppression factor to be calculated from the use of a NOsparc MHXAC difference in energy More information is available in lab notes and application notes on our website SYSTEM WIRING Please note that this residual arclet is important as it both burns NOsparc MHXAC has two male quick connect terminals which through the contact protective thin film coating during initial must mate with two properly crimped female quick connect operation and subsequently cleans of the contact surfaces during terminals normal relay operation In order to provide effective arc suppression the two wires The effects of the destructive power of arcing is depicted in the between NOsparc MHXAC and the relay contactor or snap pictures below action switch contact terminals should be as short as possible Side View Contact A Contact B Without e Arc ee i Suppression Unused Contacts Suppression Arc Suppressor Page 5 of 9 ARC SUPPRESSION TECHNOLOGIES NOsparc MHXAC User Manual One foot or less of wire length is ideal lengths over 3 feet are not e
11. devices or systems without the express written approval of the Chief Executive Officer of Arc Suppression Technologies As used herein A Life support devices or systems are devices or systems which support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user B A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness LEGAL NOTICE Information in this document is believed to be accurate and is provided solely in connection with Arc Suppression Technologies products Arc Suppression Technologies makes no warranties expressed or implied regarding the information contained herein NOsparc MHXAC User Manual Arc Suppression Technologies assumes no liability for errors and omissions that may occur in this document Arc Suppression Technologies reserves the right to make changes corrections modifications or improvements to this document and the product described herein at any time without notice This product is sold pursuant to Arc Suppression Technologies terms and conditions of sale Arc Suppression Technologies assumes no liability otherwise arising from the application or use of any such information or product for
12. ed power levels the relay contacts become extremely hot due to high current densities at the point of contact constriction just before the contact breaks open ALWAYS FOLLOW THE RELAY MANUFACTURERS SPECIFICATIONS AND REQUIREMENTS Standard relays typically have a maximum short period cycle time of 1200 cycles per hour Follow extreme caution when conducting short cycle Only authorized and qualified personnel should install and service the NOsparc MHXAC Failure to comply with these recommendations may result in damage to equipment and property and injury to personnel Always test the function and performance of NOsparc MHXAC in the intended application therefore use of the NOsparc MHXAC will not eliminate hazards associated with electrical current contact arcing An arc suppressor DOES NOT eliminate arcing SAFETY All creepage distances and clearances of NOsparc MHXAC have been designed to meet requirements of safety standards When using NOsparc MHXAC basic safety precautions should always be followed to reduce risk of fire electric shock and injury to persons When installing NOsparc MHXAC into your system make sure that the Quick Connect Terminal connector is properly crimped terminated insulated and that the proper wire gauge is used and that the connector is securely seated Incorrect application or termination can result in harmful or fatal electrical shock or component damage CAUTIONS The NO
13. g personnel and equipment from damage CAUTION describes any condition that could result in damage to the equipment or result in physical harm to personnel The SAFETY alert symbol an exclamation mark in a triangle precedes a general CAUTION or WARNING MN statement lt describes safety requirements to meet local national and international standards CAUTION or WANIN The electrical hazard symbol a lightning bolt in a triangle precedes an electric shock hazard lt describes a potential electrical shock hazard which can result in personal injury or death Electrical Shock NOTE describes any item of interest to the user Hazard CAUTION or OWNer or operator WARNING Page 3 of 9 ARC SUPPRESSION TECHNOLOGIES WARNINGS Follow extreme caution when applying NOsparc MHXAC to trip and close contacts or in circuits containing elements that can be energized by a 1 2 power cycle pulse This User Manual must be thoroughly understood and accurately followed to avoid unintended equipment operation The assembly must conform to National Electric Code NEC safety standards as well as locally applicable codes Failure to do so could result in personal injury or loss of life See the product rating curve for wire gauge selection ambient temperature and current restrictions time tests especially below the maximum rated cycle time for the associated relay typically 3s Even at significantly reduc
14. rise times Action of minimization of undesired event Voltage at which steady state current through the varistor is gt 1mA Maximum allowed voltage across the arc suppressor NOT operating voltage ARC SUPPRESSION TECHNOLOGIES WARRANTY Please contact your distributor or sales representative for warranty information TECHNICAL SUPPORT Please contact your distributor or sales representative with technical support and product support questions Have the following information available when contacting your representative e Model Number e Serial Number In certain circumstances direct product support from Arc Suppression Technologies may be reached via the following communication methods e support ArcSuppressionTechnologies com e htto arecsuppressiontechnologies com Support aspx e 612 928 5546 CONTACT INFORMATION ARC S NOsparc MHXAC User Manual CONDITIONS FOR SERVICE In the event of a product malfunction Arc Suppression Technologies or an authorized agent should perform all repairs to a NOsparc MHXAC unit It is the responsibility of users requiring service to report the need for service to their distributor or sales representative Any components devices or other equipment used with or adjacent to a NOsparc MHXAC device is the sole responsibility of the end user and not of Arc Suppression Technologies or any of its agents resellers representatives or distributors RETURN MATERIAL AUTHORIZA
15. sparc MHXAC will pass a leakage current see specifications even though the contacts across which it is connected are open similar to leakage present with snubber use This capacitive leakage current can be sufficient to turn on some solid state and electromechanical relays or to cause electric shock to personnel Therefore e The NOsparc MHXAC must never be connected across relay contactor or snap action switch contacts driving high impedance loads NOsparc MHXAC User Manual e The NOsparc MHXAC must never be connected across relay contactor or snap action switch contacts used for galvanic safety isolation Proper care must be taken when handling and installing NOsparc MHXAC Never plug or unplug NOsparc MHXAC while powered Do not connect NOsparc MHXAC directly to power Use caution when installing or modifying power connections NOTES Connect NOsparc MHXAC across the power switching relay contactor or snap action switch contacts only NOsparc MHXAC capabilities will be fully effective even under mixed load conditions NOsparc MHXAC has been designed to support the following AC power loads e General Purpose e Inductive e Ballast e Resistive e Motor e Pilot Duty e Capacitive e lungsten DO NOT use NOsparc MHXAC for DC power applications DO NOT use NOsparc MHXAC under the following power conditions e Non sinusoidal power circuits e Phase controlled power circuits DO NOT connect N
16. tage Across Contact f the two contact terminal wires that are used to connect the device to the associated power relay contactor or snap action switch Arc Suppression Pulses NOsparc MHXAC requires only two wires to monitor the contact status in order to Suppress the contact current arc at the instant when the contact transitions from close to open state including contact bounce multiple closed to open events on contact make RELAY END OF LIFE EOL Every relay has a finite operating lifetime For example If a power relay with a 100 000 cycle electrical life is operated once every minute 60s it will reach its EOL in a mere 69 days The arcing across the contacts is literally a small lightning bolt as shown below Left Relay contacts at rest Right Electrical contact current arc across the contact points of the same relay NOsparc MHXAC extends the inevitable end of life of contacts by a factor of 100 times or more under normal specified operating conditions please refer to the relay contactor or snap action switch specifications ARC SUPPRESSION AND CONTACT PROTECTION The natural end of life EOL is failure in one of the following three NOsparc MHXAC detects the arc ignition point and suppresses modes the arc within about 5us 5 millionths of a second The result is a low energy arclet with arc energy of only a few uJ as opposed to a full contact arc that is hundreds of mJ or more The ar
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