Intrinsically Safe Relays and Barriers

Intrinsically safe refers to equipment and wiring which is incapable of releasing sufficient electrical or thermal energy under normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture in its most easily ignited concentration.  This is achieved by limiting the amount of power available to the electrical equipment in the hazardous area to a level below that which will ignite the gases present.  Review with your local electrical authority and the National Electrical Code to ensure proper installation. 

Below are Intrinsically Safe Barriers and Relays that Gems offers.  Relays work with AC voltage, and Barriers work with DC voltage.    

Intrinsically Safe Relays:

Warrick Relays: Used for rendering conductivity probes or non-voltage storing devices Intrinsically Safe.

Features

  • AC Supply Voltage
  • Pump/Valve Control
  • Alarm(s) Control
  • SPDT Load Contacts    
  • Series 27 Relay: Pump/Valve Control, or Single Switch (Alarm) Control      
  • Series 47 Relay: 4 Channel Alarm Control
  • Series 67 Relay: Dual Pump/Valve Control, and 2 Alarm Channels

Gems Safe-Pak Relays: Used for rendering non-voltage storing devices Intrinsically Safe.

Features

  • AC Supply Voltage
  • Pump/Valve Control (41705 Only)
  • Alarm(s) Control
  • SPST Load Contacts
  • Gems SAFE-PAK Relays
  • 22445: 95-135 VAC, SPST N.O.
  • 25872: 100-135 VAC, SPST N.C.
  • 25873: 200-250 VAC, SPST N.O.
  • 64101: 110-130 VAC, SPST N.O.
  • 144600: 105-125 VAC, SPST N.O.
  • 41705: Latching Relay (Pump/Valve Control), 105-125 VAC, SPST N.O.

 

Safe Pak Barrier
Relays-and-Barriers_54800

Intrinsically Safe Barriers:

  • 65800 Series: 15-30 VDC: Single Point Level and Flow Switch Applications
  • 54800 Series: 15-30 VDC: Dual Channel Barrier for Continuous Level Transmitters