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Features:
Electromechanical
Design
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Detects Shock or Vibration in Three Planes of Motion
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NEMA 4/4X (CSA types 4 and 12) Weather‑proof Enclosure Reliable
Magnetic Latch Feature
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Micro Fine, Easy to Adjust Sensitivity Adjustment Manual
Reset (Standard)
Remote Reset (Optional)
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Adjustable Start-up Time Delay (Optional)
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Space Heater Circuit to Prevent Housing Moisture Condensation (Optional)
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Two (2) versatile SPDT snap switches rated up to 480 VAC.
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VS94
Series is an electro-mechanical device designed to protect equipment
from damaging shock or vibration. This sensitive mechanism can detect
excessive shock or vibration and shutdown the equipment before further
damage occurs. A set of contacts is held in a latched position through a
magnetic latch mechanism. As the level of shock or vibration increases
an inertia mass exerts force against the latch arm and forces it away
from the magnetic latch causing the latch arm to separate and to operate
the contacts. Sensitivity is obtained by adjusting the amount of air gap
between the magnet and latch arm plate.
The
VS94 Series is housed in a NEMA 4/4X glass tilled polyester enclosure
and has a base mount. It is for applications in non‑hazardous
locations.
VS94
models are rated up to 480 VAC.
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Options
Remote
Reset:
This option of the VS94 includes a built‑in electric solenoid
which allows reset of tripped unit from a remote location. Available for
115 VAC or 24 VDC.
: Overrides
trip operation on start‑up. The time delay option is
field‑adjustable from 5 seconds up to 6‑1/2 minutes with an
easy‑to‑adjust 20‑turn potentiometer. Available for
115 VAC or 24 VDC.
Space
Heater
: This
optional circuit prevents moisture condensation inside the VS94 housing.
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Specifications
VS2
and VS2C
Case:
Equal to NEMA 3R. Suitable for non hazardous areas.
VS2:
Base mount
VS2C:
C-clamp
mount,
includes,
45.ft. 2_conductor
cable, and _5
cable clamps. Contacts:
SPD double make leaf contacts, SA O 480 VAC
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The
VS2 Series switches arc shock sensitive mechanisms for shutdown of
engine or electric motor powered equipment. These switches use a
magnetic latch to ensure reliable operation. Explosion proof
"EX" models for hazardous locations are available.
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).
Ideal
for use on engines, pumps, compressors, 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
sensitivity required in each application
Remote
Reset Option (VS2EXR and VS2EXRB) The
remote reset option includes a builtin electric solenoid which allows
reset of tripped unit from a remote location. Available for 115 VAC or
24 VDC.
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VS2EXRB
• For Group B Locations
• Snap-switch Contacts 9-1/8 in.
(232 mm)
• DPDT Feature Optional Mounting
Centers
• TATTLETALE© Reset Button
6 in.
Model VS2EXRB is constructed for use in Class I, Division 1, |
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Remote Reset Feature
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NEMA 7 Specifications
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Snap switch Contacts
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TATTLETALE' Reset Button
Model VS2EXR features an electric remote reset
feature in addition to the “TATTLETALE" reset button. The VS2EXR
uses only one SPDT snap‑switch and is CSA and UL listed for Class
I, Division I, Groups C & D hazardous locations. It is constructed
to meet NEMA 7 specifications.
ELECTRICAL
Contact Rating:
5 A CU? 125-480 VAC
1/2 A Cq? 125 VDC
1/4 A L 250 VDC
2 A Resistive 30 VDC
1 A Inductive 30 VDC
Remote Reset Rating:
115 VAC or 24 VDC (Specify)
350 mA AC/DC
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