VS-96013B
Revised 09-08
Catalog Section 20
00-02-0076
Shock and Vibration Switch
VS2
VS2 Series
■
Designed to Detect Shock/Vibration
in 3-Planes of Motion
■
■
■
Fully Adjustable
Includes Magnetic Latching Feature
Manual or Electric Reset
VS2EX
*
LISTED
VS2EX
Description
Basic Operation
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*.
The VS2 Series switches are shock sensitive
mechanisms for shutdown of engine or elec-
tric motor powered equipment. These
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).
switches use a magnetic latch to ensure reli-
able operation. Explosion-proof “EX” mod-
els for hazardous locations are available.
Snap-switches: 2-SPDT snap-switches; 5A
@ 480 VAC;* 2A resistive, 1A inductive,
up to 30 VDC.
Applications
Normal Operating Temperature: -40 to
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.
140°F (-40 to 60°C).
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.
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.
Specifications
Remote Reset : 115 VAC or 24 VDC (specify).
Warranty
VS2 and VS2C
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
Case: Equal to NEMA 3R. Suitable for
non-hazardous areas.
VS2EXRB
Case: Explosion-proof aluminum alloy
housing; rated Class I, Division 1, Group
B hazardous areas.
VS2: Base mount
VS2C: C-clamp mount, includes 45 ft. (13.7 m)
2-conductor cable, and 5 cable clamps.
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.
Contacts: SPDT-double make leaf contacts,
5A @ 480 VAC.
*CSA and UL listed with 480 VAC rating.
Remote Reset: 115 VAC or 24 VDC (specify).
VS-96013B page 1 of 4
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VS2EXR
5-5/8 in. (143 mm)
3 in.
(76 mm)
Mounting
Holes
• Remote Reset Feature
• NEMA 7 Specifications
• Snap-switch Contacts
• TATTLETALE® Reset Button
Model VS2EXR features an electric remote reset feature in addi-
Remote
Reset Coils
5-1/4 in.
(133 mm)
Mounting
Holes
Permanent
Magnet
®
TATTLETALE
Reset Push
Button
NC NO COM
®
tion to the TATTLETALE reset button. The VS2EXR uses only
6-3/8 in.
(162 mm)
Air Gap
one SPDT snap-switch and is CSA and UL listed for Class I,
Division 1, Groups C & D hazardous locations. It is constructed
to meet NEMA 7 specifications.
4-40 NC
Screw Terminal
3/8 in.
(10 mm)
4 places
TOP VIEW
(Cover removed)
ELECTRICAL
Remote
Reset
SPDT
Snap-switch
5 A @ 125–480 VAC
1/2 A @ 125 VDC
1/2 NPT
Conduit
Slotted
1/4 A @ 250 VDC
Sensitivity
2 A Resistive 30 VDC
1 A Inductive 30 VDC
Adjustment
COM
N.O.
N.C.
4-7/8 in.
(124 mm)
MORE
SENSITIVE
LESS
SENSITIVE
115 VAC or 24 VDC (Specify)
1-3/4 in.
(44 mm)
350 mA AC/DC
SIDE VIEW
10-5/8 in.
(270 mm)
8 in.
(203 mm)
VS2EXRB
• For Group B Locations
• Snap-switch Contacts
• 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.
10-3/16 in.
9-1/8 in.
(232 mm)
Mounting
Centers
(259 mm)
8-5/8 in.
(219 mm)
NC NO COM
6 in.
(152 mm)
TOP VIEW
(Cover removed)
ELECTRICAL
Remote
Reset
SPDT
Snap-switch
5 A @ 125–480 VAC
1/2 A @ 125 VDC
1/4 A @ 250 VDC
2 A Resistive 30 VDC
1 A Inductive 30 VDC
6 in.
(152 mm)
1/2 NPT
Conduit
COM
N.O.
N.C.
2-1/2 in.
(64 mm)
115 VAC or 24 VDC (Specify)
350 mA AC/DC
COM
N.O.
N.C.
4-1/2 in.
(114 mm)
Mounting Centers
Option SPDT
Snap-switch (DPDT)
SIDE VIEW
VS-96013B page 3 of 4
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How to Order
To order your VS2 Series model use the diagram below.
Part number example: VS2EXR-24
Service Parts
When ordering service parts, specify both part number and descrip-
tion in listing below.
PART NO.
VS2 and VSD2ECSCRIPTION
___ – ___
20-00-0030
20-00-0031
20-00-0032
20-05-0021
20-00-0261
20-05-0465
20-00-0137
Movement assembly
Glass and gasket assembly
Base Model
VS2
Reset push button assembly
Mounting clamp (VS2C)
Cable clamp assembly (1 each) (VS2C)
2-Conductor electrical cable, 45 feet (13.7 meters) (VS2C)
5 clamps and 45 feet (13.7 meters) of cable (VS2C)
VS2C
VS2EX
VS2EXR
VS2EXRB
VS2EX
20-01-0091
20-05-0087
00-00-0309
20-01-0090
NOTE: Order C-clamp
mounting kit as a separate
line item for VS2EX and
VS2EXR.
Movement assembly
Cover
Cover gasket
Snap-switch and insulator kit (1 switch per kit)
prior to September 1, 1995.*
Snap-switch and insulator kit (1 switch per kit) for models
manufactured on September 1, 1995 or later.*
C-clamp conversion mounting kit
20-00-0288
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
20-00-0289
VS2EXR
20-00-0262
20-05-0087
00-00-0309
20-01-0090
Movement assembly
LCC = Less cable and clamps on VS2C
Cover
Cover gasket
Snap-switch and insulator kit (1 switch per kit)
prior to September 1, 1995.*
Snap-switch and insulator kit (1 switch per kit) for models
manufactured on September 1, 1995 or later.*
Reset solenoid assembly (115 VAC)
Reset solenoid assembly (24 VDC)
C-clamp conversion mounting kit
20-00-0288
Shipping Information
20-00-0049
20-00-0234
20-00-0289
VS2 and VS2C
Shipping Weight:
VS2: 2 lb 8 oz. (1.1 kg)
VS2C: 7 lb (3.2 kg)
VS2EXRB
20-01-0090
Snap-switch and insulator kit (1 switch per kit)
prior to September 1, 1995.*
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 178 x 140 mm)
20-00-0288
20-00-0057
20-00-0058
20-00-0287
20-00-0290
Snap-switch and insulator kit (1 switch per kit) for models
manufactured on September 1, 1995 or later.*
Inside snap-switch and insulator kit (1 switch per kit) for
model VS2EXRB-D prior to September 1, 1995.*
Outside snap-switch and insulator kit (1 switch per kit) for
model VS2EXRB-D prior to September 1, 1995.*
Outside snap-switch and insulator kit (1 switch per kit) for model
VS2EXRB-D manufactured on September 1, 1995 or later.*
Inside snap-switch and insulator kit (1 switch per kit) for model
VS2EXRB-D manufactured on September 1, 1995 or later.*
Adjustment shaft
VS2EX
Shipping Weight: 4 lb 8 oz. (2 kg)
Shipping Dimensions: 8-1/4 x 9-1/4 x 5 in. (210 x 235 x 127 mm)
VS2EXR
Shipping Weight: 5 lb 8 oz. (2.2 kg)
Shipping Dimensions: 8-1/4 x 9-1/4 x 5 in. (210 x 235 x 127 mm)
20-05-0077
20-00-0262
20-00-0049
20-00-0234
VS2EXRB
Movement assembly
Shipping Weight: 17 lb 8 oz. (7.9 kg)
Reset solenoid assembly (115 VAC)
Reset solenoid assembly (24 VDC)
Shipping Dimensions: 12 x 12 x 10 in. (305 x 305 x 254 mm)
* Models with date 0895 and before use old switch. Dated 0995 after, use straight snap-switch
arm, no rollers.
FW MURPHY
P.O. Box 470248
Tulsa, Oklahoma 74147 USA
+1 918 317 4100 Fax: +1 918 317 4266
E-mail: [email protected]
FRANK W. MURPHY, LTD
Church Rd Laverstock
Salisbury SP1 1QZ UK
FW MURPHY INSTRUMENTS (HANGZHOU) CO. LTD
77 23rd Street
Hangzhou Economic & Technological Development Area
Phone: +44 172 241 0055 Fax: +44 172 241 0088 Hangzhou, Zhejiang 310018 China
E-mail: [email protected]
Phone: +86 571 8788 6060 Fax: +86 571 8684 8878
INDUSTRIAL PANEL DIVISION
Fax: +1 918 317 4124
E-mail: [email protected]
FW MURPHY INTERNATIONAL TRADING (SHANGHAI) CO., LTD.
Suite 1704, Tower B, City Center of Shanghai; 100 Zunyi Road
Shanghai, 200051 China
COMPUTRONIC CONTROLS, LTD
41 - 43 Railway Terrace
Nechells, Birmingham B7 5NG UK
E-mail: [email protected]
Phone: +86 21 6237 2082 Fax: +86 21 6237 2083
MURPHY POWER IGNITION
CONTROL SYSTEMS & SERVICES DIVISION
P.O. Box 1819
Rosenberg, Texas 77471 USA
Phone: +1 281 633 4500 Fax: +1 281 633 4588
E-mail: [email protected]
www.
.com
Printed in U.S.A.
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