Murphy VS2 Series User's Manual
Contents
1. Case Explosion proof aluminum alloy housing rated Class I Division 1 Group B hazardous areas Snap switch 1 SPDT snap switch with reset coil option available for 2 SPDT switches 5A 480 VAC 2A resistive 1A inductive up to 30 VDC Remote Reset 115 VAC or 24 VDC specify VS 96013B page 1 of 4 m Designed to Detect Shock Vibration in 3 Planes of Motion Fully Adjustable Includes Magnetic Latching Feature Manual or Electric Reset Basic Operation Pushing the reset button moves the tripping latch into a magnetically held position A shock vibration will move the magnet beyond this holding position thus freeing the spring loaded tripping latch to transfer the contacts and shutdown the machinery see dimensional diagrams in the following pages for visual representation of parts Remote Reset Option VS2EXR and VS2EXRB The remote reset option includes a built in electric solenoid which allows reset of tripped unit from a remote location Available for 115 VAC or 24 VDC Warranty A limited warranty on materials and workmanship is given with this FW Murphy product A copy of the warranty may be viewed or printed by going to www fwmurphy com support warranty htm CSA and UL listed with 480 VAC rating VS2 and VS2C The VS2 and VS2C are designed for use in non hazardous loca tions They have leaf type SPDT double make contacts that can be used for shutdown and or alarm They have a slotted se2. mm SIDE VIEW a 10 5 8 in a VS2EXRB 270 mm e For Group B Locations 9 1 8 in 3 16 in e Snap switch Contacts 32 mm mm Centers o DPDT Feature Optional Model VS2EXRB is constructed for use in Class I Division 1 Group B hazardous locations It has as standard a SPDT snap switch and an electric remote reset Option is available for DPDT snap switch TOP VIEW Cover removed ELECTRICAL Contact Rating 5 A 125 480 VAC 1 2 A 125 VDC 1 4 A 250 VDC 6 in 2 A Resistive 30 VDC 0 C 152 1 A Inductive 30 VDC Remote Reset Rating 115 VAC or 24 VDC Specify 350 mA AC DC SPDT Snap switch Remote Reset SS oojo o io Se SH Option SPDT Snap switch DPDT Mounting Centers SIDE VIEW VS 96013B page 3 of 4 How to Order To order your VS2 Series model use the diagram below Part number example VS2EXR 24 Base Model VS2 VS2C VS2EX VS2EXR VS2EXRB NOTE Order C clamp mounting kit as a separate line item for VS2EX and VS2EXR Options 24 24 VDC reset coil on VS2EXR or VS2EXRB 15 115 VAC reset coil on VS2EXR or VS2EXRB D DPDT switch on VS2EXRB only LC Less case LCC Less cable and clamps on VS2C Shipping Information VS2 and VS2C Shipping Weight VS2 2 lb 8 oz 1 1 kg VS2C 7 lb 3 2 kg Shipping Dimensions VS2 8 1 4 x 9 1 4 x 5 in 210 x 235 x 127 mm VS2C 12 x 7 x 5 1 2 in 305 x
3. 178 x 140 mm VS2EX Shipping Weight 4 Ib 8 oz 2 kg Service Parts When ordering service parts specify both part number and descrip tion in listing below PART NO DESCRIPTION VS2 and VS2C 20 00 0030 Movement assembly 20 00 0031 Glass and gasket assembly 20 00 0032 Reset push button assembly 20 05 0021 Mounting clamp VS2C 20 00 0261 Cable clamp assembly 1 each VS2C 20 05 0465 2 Conductor electrical cable 45 feet 13 7 meters VS2C 20 00 0137 5 clamps and 45 feet 13 7 meters of cable VS2C VS2EX 20 01 0091 Movement assembly 20 05 0087 Cover 00 00 0309 Cover gasket 20 01 0090 Snap switch and insulator kit 1 switch per kit prior to September 1 1995 20 00 0288 Snap switch and insulator kit 1 switch per kit for models manufactured on September 1 1995 or later 20 00 0289 C clamp conversion mounting kit VS2EXR 20 00 0262 Movement assembly 20 05 0087 Cover 00 00 0309 Cover gasket 20 01 0090 Snap switch and insulator kit 1 switch per kit prior to September 1 1995 20 00 0288 Snap switch and insulator kit 1 switch per kit for models manufactured on September 1 1995 or later 20 00 0049 Reset solenoid assembly 115 VAC 20 00 0234 Reset solenoid assembly 24 VDC 20 00 0289 C clamp conversion mounting kit VS2EXRB 20 01 0090 Snap switch and insulator kit 1 switch per kit prior to September 1 1995 20 00 0288 Snap switch and insulator kit 1 switch per kit fo
4. Holes Permanent il Magnet 5 1 4 in 1 TATTLETALE a nti i Reset Push Holes Button 6 3 8 in Air Gap 162 mm 3 8 in 10 mm 4 places TOP VIEW Cover removed 1 2 NPT Slotted i _ Sensitivity vere i Adjustment 4 7 8 in 124mm MORE LESS 4 3 4 in SENSITIVE SENSITIVE 44 mm SIDE VIEW VS 96013B page 2 of 4 VS2EXR O e Remote Reset Feature e NEMA 7 Specifications e Snap switch Contacts e TATTLETALE Reset Button Model VS2EXR features an electric remote reset feature in addi tion to the TATTLETALE reset button The VS2EXR uses only one SPDT snap switch and is CSA and UL listed for Class I Division 1 Groups C amp D hazardous locations It is constructed to meet NEMA 7 specifications ELECTRICAL Contact Rating 5 A 125 480 VAC SPDT Snap switch Remote Reset 5 5 8 in 143 mm 3 in 76 mm Remote Mounting Reset Coils Holes F Permanent 5 1 4 in Magnet 133 mm Mounting TATTLETALE Holes Reset Push t_ Button Air Gap 6 3 8 in 162 mm 4 40 NC Screw Terminal 3 8 in 10 mm TOP VIEW 4 places Cover removed 1 2 A 125 VDC Slotted 1 4 A 250 VDC Conduit Sensitivity 2 A Resistive 30 VDC 3 Adjustment 1 A Inductive 30 VDC a N O N C COM 4 7 8 in Remote Reset Rating l 124 mm I MORE LESS 115 VAC or 24 VDC Specify 4 3 4 in SENSITIVE SENSITIVE 350 mA AC DC 44
5. VS 96013B Revised 09 08 Catalog Section 20 00 02 0076 Shock and Vibration Switch VS2 Series VS2EX O LISTED Description The VS2 Series switches are shock sensitive mechanisms for shutdown of engine or elec tric motor powered equipment These switches use a magnetic latch to ensure reli able operation Explosion proof EX mod els for hazardous locations are available Applications Ideal for use on engines pumps compres sors heat exchangers and pumping units the VS2 Series can be used anywhere shutdown protection from damaging shock vibration is desired Switches are field adjustable to sen sitivity required in each application Specifications VS2 and VS2C Case Equal to NEMA 3R Suitable for non hazardous areas VS2 Base mount VS2C C clamp mount includes 45 ft 13 7 m 2 conductor cable and 5 cable clamps Contacts SPDT double make leaf contacts 5A 480 VAC MURPHY gt VS2EX Case Base mount explosion proof aluminum alloy housing meets NEMA 7 IPSO specifi cations Class I Division 1 Groups C amp D UL and CSA listed Snap switches 2 SPDT snap switches 5A 480 VAC 2A resistive 1A inductive up to 30 VDC Normal Operating Temperature 40 to 140 F 40 to 60 C VS2EXR Case Same as VS2EX Snap switch 1 SPDT snap switch and reset coil 5A 480 VAC 2A resistive 1A inductive up to 30 VDC Remote Reset 115 VAC or 24 VDC specify VS2EXRB
6. nsitivity adjustment located on the side of the case see drawing below SIDE VIEW 3 1 8 in 80 mm Air Gap Permanent Magnet 4 11 16 in 119 mm 5 3 8 in 137 mm Mounting VS2C Model Bracket y C clamp Mounting a es Bracket VS2C Model ELECTRICAL Contact Rating 5 A 480 VAC d NO1 NC COM N02 FRONT VIEW Cover removed tom rm Adjustment Armature Slotted Sensitivity Adjustment 1 2 Conduit Threads Weatherproof Strain Relief Bushing VS2C tae peewee 1 1 4 x 1 2 in ae 0 6 mm x 13 mm Toccecee ace oe Slot 2 places 5 1 8 in 130 mm Mounting Holes VS2EX e NEMA 7 IP50 Specifications e Snap switch Contacts e TATTLETALE Reset Button Model VS2EX is housed in an explosion proof enclosure with threaded cover This enclosure is CSA and UL listed for Class I Division 1 Groups C amp D hazardous locations In place of the leaf type contacts 2 SPDT snap switches are used in this model Sensitivity is externally adjustable and when tripped the VS2EX gives a TATTLTALE indication on the reset button It is con structed to meet NEMA 7 specifications ELECTRICAL 2 SPDT Switches DPDT Contact Rating 5 A 125 480 VAC 1 2 A 125 VDC J 1 4 A 250 VDC No NC COM 2 A Resistive 30 VDC 1 A Inductive 30 VDC 9 N 0 N C 5 5 8 in 143 mm 3 in 4 40 NC 76 mm Screw Mounting Terminal o
7. r models manufactured on September 1 1995 or later 20 00 0057 Inside snap switch and insulator kit 1 switch per kit for model VS2EXRB D prior to September 1 1995 20 00 0058 Outside snap switch and insulator kit 1 switch per kit for Shipping Dimensions 8 1 4 x 9 1 4 x 5 in 210 x 235 x 127 mm model VS2EXRB D prior to September 1 1995 VS2EXR Shipping Weight 5 lb 8 oz 2 2 kg 20 00 0287 Outside snap switch and insulator kit 1 switch per kit for model VS2EXRB D manufactured on September 1 1995 or later 20 00 0290 Inside snap switch and insulator kit 1 switch per kit for model Shipping Dimensions 8 1 4 x 9 1 4 x 5 in 210 x 235 x 127 mm VS2EXRB D manufactured on September 1 1995 or later VS2EXRB Shipping Weight 17 lb 8 oz 7 9 kg Shipping Dimensions 12 x 12 x 10 in 305 x 305 x 254 mm 20 05 0077 Adjustment shaft 20 00 0262 Movement assembly 20 00 0049 Reset solenoid assembly 115 VAC 20 00 0234 Reset solenoid assembly 24 VDC Models with date 0895 and before use old switch Dated 0995 after use straight snap switch arm no rollers FW MURPHY FRANK W MURPHY LTD FW MURPHY INSTRUMENTS HANGZHOU CO LTD P O Box 470248 Church Rd Laverstock 77 23rd Street Tulsa Oklahoma 74147 USA Salisbury SP1 1QZ UK Hangzhou Economic amp Technological Development Area 1 918 317 4100 Fax 1 918 317 4266 Phone 44 172 241 0055 Fax 44 172 241 0088 Hangzhou Zhejiang 310018 China E mail sales fwm
8. urphy com E mail sales fwmurphy co uk Phone 86 571 8788 6060 Fax 86 571 8684 8878 INDUSTRIAL PANEL DIVISION Web site www fwmurphy co uk FW MURPHY INTERNATIONAL TRADING SHANGHAI CO LTD Fax 1 918 317 4124 COMPUTRONIC CONTROLS LTD Suite 1704 Tower B City Center of Shanghai 100 Zunyi Road E mail ipdsales fwmurphy com 41 43 Railway Terrace Shanghai 200051 China Web site www murphy pi com Phone 44 121 327 8500 Fax 44 121 327 8501 Web site mhong fwmurphy com CONTROL SYSTEMS amp SERVICES DIVISION P O Box 1819 Rosenberg Texas 77471 USA Phone 1 281 633 4500 Fax 1 281 633 4588 www fwmurphy com E mail sales fwmurphy com E mail sales computroniccontrols com Web site www computroniccontrols com ISO 9001 GEE Printed in U S A UK 4S0 5 3001 2000 FF VS 96013B page 4 of 4
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