Murphy VS2 Series - Manual
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Table of Contents:
- Page 2 – indication on the reset button. It is con-; ELECTRICAL
- Page 3 – reset button. The VS2EXR uses only; VS2EXRB
- Page 4 – How to Order; Options; Service Parts; DESCRIPTION; VS2EXR; Shipping Information; fwmurphy
VS-96013B page 1 of 4
VS2 Series
■
Designed to Detect Shock/Vibration
in 3-Planes of Motion
■
Fully Adjustable
■
Includes Magnetic Latching Feature
■
Manual or Electric Reset
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.
VS2EX
Case:
Base mount, explosion-proof aluminum
alloy housing; meets NEMA 7/IP50 specifi-
cations; Class I, Division 1, Groups C & 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
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).
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
VS2EX
VS2
*CSA and UL listed with 480 VAC rating.
LISTED
*
VS-96013B
Revised 09-08
Catalog Section 20
00-02-0076
Shock and Vibration Switch
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Summary
VS-96013B page 2 of 4 ELECTRICAL Contact Rating: 5 A @ 480 VAC 5-3/8 in. (137 mm) VS2C Model 3-1/8 in. (80 mm) 4-11/16 in. (119 mm) 2-1/4 in. (57 mm) 5-1/8 in. (130 mm) Mounting Holes SIDE VIEW FRONT VIEW (Cover removed) Mounting Bracket C-clamp Mounting Bracket VS2C Model Slotted SensitivityAdjustm...
VS2EXR • Remote Reset Feature• NEMA 7 Specifications• Snap-switch Contacts• 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, Group...
How to Order To order your VS2 Series model use the diagram below.Part number example: VS2EXR-24 ___ – ___ 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 Base Model VS...
