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The VS2 Series switches are shock-sensitive mechanisms for shutdown of engine or electric motor powered equipment.

It is designed to detect shock/vibration in three planes of motion.

These fully adjustable switches use a magnetic latch to ensure reliable operation. Explosion-proof EX models for hazardous locations are available.

Ideal for use on engines, pumps, compressors, heat exchangers and pumping units, the VS2 Series can be used where shut-down protection from damaging shock/vibration is desired. Switches are field adjustable to the sensitivity required in each application.

FW Murphy VS2™ Series


Environmental Protection: Ingress protected to IP54 (when mounted on a horizontal surface with drain holes down). Suitable for non-hazardous areas. VS2C: C-clamp mount, includes 45 ft. (13.7 m) 2-conductor cable and 5 cable clamps
SPDT-double make leaf contacts, 3A @ 240 VAC; 10A @120 VAC; 10A @ 32 VDC
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 178 x 140 mm)


  • Designed to detect shock/vibration in 3-planes of motion
  • Fully adjustable
  • Includes magnetic latching feature
  • Manual or electric reset