O-Z/Gedney™ Class 531 Vibration Switches

O-Zgedney

O-Z/Gedney™ Class 531 Vibration Switches

O-Zgedney

O-Z/Gedney™ Class 531 vibration switches are safety devices designed for protecting rotating machinery, such as motors, generators, engines, pumps and fans from abnormal levels of vibration. If the vibration level of the machinery becomes excessive, the switch will trip, shutting down the machinery being protected. The switch operates on the principle of magnetic air gap, an increased air gap for low vibration and decreased air gap for high vibration levels. The sensitivity (air gap) can be adjusted by means of an adjustment knob and lock nut on the outside of the enclosure.

Specifications

Type TBSM NEC and CEC Certifications and Compliances
Class I, Division 1 and 2, Groups C, D; Class I, Zone 1 and 2, Groups IIA, IIB; Class II, Division 1 and 2, Groups E, F, G; Class III; NEMA 7D, 9EFG
Type TBSM-B NEC and CEC Certifications and Compliances
Class I, Division 1 and 2, Groups B, C, D; Class I, Zone 1 and 2, Groups IIA, IIB+H2; Class II, Division 1 and 2, Groups E, F, G; Class III; NEMA 7BCD, 9EFG
Standard Materials
Copperfree cast aluminum enclosure with grey epoxy power coat
Switch Rating
15 Amps at 125, 250, or 480 Vac; 1?2 Amp at 125 Vdc; 1?4 Amp at 250 Vdc. 1?8 HP - 125 Vac, 1?4 HP - 250 Vac

Features

  • Rotation of the knob changes the sensitivity of the switch
  • External sensitivity adjustment: a satisfactory adjustment can be achieved by trial and error, locating the switch where it is subjected to maximum vibration
  • Two SPDT micro switches
  • Manual reset button
  • Standard O-Ring provides watertight seal for NEMA 4 application

Documents & Drawings