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

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model Description Usually Ships* Price Code Order
Ships: Same Day
Price: $613.00
Loop powered galvanic barrier for use with intrinsically safe transmitters. Same Day* $613.00 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

Catalog Pages



Photo Downloads

You must be logged in to view this content.
Click here to login to your account.

Product Reviews

Only registered users can write reviews. Please Sign in or create an account