Link has been copied to clipboardFeeder Protection
Feeder protection relays help protect power supply circuits for industrial and processing facilities. Relays made by Littelfuse provide integrated ground fault, overcurrent, overvoltage, undercurrent, undervoltage, and unbalance load protection. Our units also facilitate breaker control, meter current and voltage, and display real-time data.
- Alternating current supply voltage ratings from 65 V ac to 265 V ac
- Operate at between 50 Hz and 60 Hz
- Direct current supply voltage ratings from 80 V dc to 275 V dc
- Analog output current ratings from 4 A to 20 A
- Ground fault trip ratings of 5 % to 100% of primary CT ratios
- Meet CSA standards
- Available with normally open (Form A) or combination normally open–normally closed (Form C) contacts
- Fail safe/Non-fail safe contact operations
- Conformal coatings protect internal circuits against corrosion
- DFT harmonic filtering
- LED screen displays measured and calculated parameters
- Onboard 64-event recorder helps with diagnosing system performance
Feeder Protection Parts
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Feeder Protection Applications
- Chemical plants
- Manufacturing plants
- Petroleum refineries
- Processing facilities
- Water/wastewater treatment plants
Feeder Protection Resources
Feeder Protection Information Center
The FPU-32 Feeder Protection Unit provides integrated protection, metering, and data-logging functions. It is an excellent choice for retrofitting and upgrading older relays because of its compact size and ability to use existing CTs. The FPU-32 is used to protect distribution feeders in processing, manufacturing, petroleum, chemical, and wastewater treatment facilities.