Eaton
Eaton C25DNF340A 3-pole definite purpose contactor 120V AC 50A
Three-pole definite purpose contactor rated 50 A resistive at 120 V AC coil voltage
- Definite-purpose 3-pole contactor for reliable motor switching
- 120 V AC coil voltage suits standard control circuits
- 50 A resistive / 40 A inductive full-load current ratings
- 7 1/2 hp at 240 V AC single-phase motor capacity
- Open-frame design for panel or enclosure integration
Purpose-built switching for lighting and motor loads
The Eaton C25DNF340A is a three-pole definite purpose contactor designed for controlling LED lighting circuits up to 50 A and single-phase motor loads at 120 V or 240 V AC. It suits contractors and facility engineers who need a compact, non-reversing starter for resistive or inductive loads in commercial and light-industrial panels.
Coil power draw and thermal rating in normal
The 110-120 V AC coil energises the D-frame contactor to carry 50 A resistive or 40 A inductive full-load current without an enclosure. Rated horsepower is 3 hp at 120 V and 7 1/2 hp at 240 V single phase, so normal duty stays within those current limits and the open frame dissipates heat directly into the cabinet.
Mounts in an enclosure and frees panel space
The open-frame design requires a separately sourced NEMA-rated enclosure and upstream over-current protection, but its small D-frame footprint leaves room for other starters or terminal blocks in the same cabinet. Non-reversing operation simplifies wiring to a single three-pole load connection.
Highlights
- Definite-purpose 3-pole contactor for reliable motor switching
- 120 V AC coil voltage suits standard control circuits
- 50 A resistive / 40 A inductive full-load current ratings
- 7 1/2 hp at 240 V AC single-phase motor capacity
- Open-frame design for panel or enclosure integration
Specifications
| Brand | EATON |
|---|
Questions about this item
How do I wire the 110-120V AC coil on this C25 series contactor and which step is often missed?
Connect the coil to a 110-120V AC control circuit; the step often missed is verifying the coil voltage matches the control supply before energising.
Which contacts wear first and when should they be replaced on this 3-pole unit?
The main power contacts carry up to 50 A resistive or 40 A inductive load; replace them when contact resistance causes voltage drop or overheating.
What thermal limit appears first during continuous 50 A resistive operation?
The contactor is rated for 50 A resistive full-load current; sustained operation at that level will reach its temperature rise limit first.
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