GfG Double Safety Barrier Two Channel SB1 for IR29 2910210

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GfG Double Safety Barrier Two Channel SB1 for IR29 2910210


GfG Double Safety Barrier Two Channel for IR 29 is a transmitter supply module. Use of the SB1 Safety Barrier allows IR 29 transmitters to be installed in Ex Zone 0 Hazardous Locations. Used when limit values for voltage and current must be observed. Ex-Zone 0 places high demands on gas detection devices. These must not cause the ignition of a flammable atmosphere at any time during normal operation or in the event of faults. The SB1 uses resistors to limit the input voltage from 24 V DV to a maximum output voltage of 21 V DC.

The SB1 safety barrier is installed outside the hazardous area. It transmits 4-20 mA signals between intrinsically safe and non-intrinsically safe circuits. The intrinsically safe circuit originating from the safety barrier is routed to Ex zone 0 and supplies an intrinsically safe transmitter with an operating voltage of maximum 21 V. Depending on the transmitter, it is connected via a 2- or 4-wire cable. The supply module is connected to the controller via a 3-wire cable.

Key Features:

  • High efficiency and low follow-up costs
  • Available with display or blind (no display)
  • Available with 4 - 20 mA or RS485 (Modbus)
  • Measuring principle: Infrared (IR)
  • Expected sensor lifetime: > 5 years
  • Choice of without display or with Color 2.2-inch display, built in push-button interface, buzzer
  • Protection class: IP54
  • Monitor: Carbon Dioxide, CO2

Part Number:

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Additional Information

Country of Origin:
United States
2.00 LBS
7.30 (in)
4.60 (in)
5.30 (in)
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