Eaton C25FNF250A Definite Purpose Control - Contactor

Two-pole. It is built on the 60-75A two- and three-pole frame, so the body is the same size as the three-pole version but only two poles are switched. For a three-phase compressor or a three-leg heater bank you need the three-pole unit instead.

It is rated 50A, with a resistive load rating of 65A per pole. The resistive figure is what matters for electric heat strips and similar non-inductive loads; use the 50A rating for motor and compressor duty.

It ships open with a metal mounting plate. That means it is meant to be installed inside an existing enclosure, air handler cabinet, or control panel - there is no NEMA housing around it, so it cannot be surface mounted in the open or outdoors on its own.

Both. Each pole has box lugs with posidrive setscrews plus side-by-side quick connect terminals, so you can land stranded feeder conductors under the lug and push control or auxiliary leads onto the quick connects without adapters.

The contactor measures 3.97 x 3.75 x 2.63 inches (length, height, width) and weighs 2.8 lb. Lay out your panel with clearance beyond that footprint for the box lug wire bends and for pulling the quick connects.

No. The C25FNF250A is a non-reversing contactor - it is a single open-close device. Reversing a motor requires a reversing pair with mechanical and electrical interlock, which this unit does not provide.

Definite purpose contactors such as the Eaton C25FNF250A are built for repetitive HVAC and refrigeration switching - compressors, condenser fans, electric heat - and that is where their ratings are published, 50A general and 65A resistive per pole. An IEC or NEMA-rated starter is the better pick when you need overload protection, reversing, or broad general-purpose industrial duty, since this unit is a contactor only with no overload block.

Eaton publishes a spec sheet for the C25FNF250A covering the contactor's electrical data in detail; it is linked directly from the product information under the spec sheet PDF. Use it when you need to confirm coil inrush or pole configuration against an equipment submittal.