Model KFD0 Galvanic Barrier

Loop Powered, Intrinsically Safe Isolators

The Model KFD0 Loop Powered, Galvanic Barrier provides complete isolation for communication with Dwyer® intrinsically-safe transmitters approved for use in hazardous areas. Galvanic barrier eliminates the need for a high integrity earth ground required when using shunt type diode type safety barriers. Unlike most other isolators, the Model KFD0-SCSEX1.55 does not require external power and has a low current draw. The housing is designed to easily mount on most standard DIN rails.

Product Applications

  • Used to isolate voltages for intrinsically safe applications for HHT series

Models & Ordering

Model Description Usually Ships Price Code Order
Ships: Same Day
Price: $494.00
Loop powered galvanic barrier for use with intrinsically safe transmitters. Same Day $494.00 B Order


Hazardous Area Input:
Signal Range: 4 to 20 mA (linear transmission 1-22 mA); Available Transmitter Voltage: ≥16 V for supply voltage > 21 V.
Safe Area Output:
Signal Range: 4 to 20 mA; Transmitter Voltage: ≤30 VDC.
Response Time:
≤20 µs at 0, and ≤600 µs at 800 Load.
Maximum Power Disipation:
150 mW @ 20 mA and V<24 V.
Temperature Limits:
-4 to 140°F (-20 to 60°C).
Temperature Drift:
≤0.5 µA/°C.
4.2 oz (120 g).
Agency Approvals:


  • Designed to mount on most standard DIN rails
  • Approved for use in hazardous areas

Product Literature

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