C25BNB230 (2-pole 30 A)
Eaton's C25 definite-purpose line — the industrial-grade answer to the generic HVAC contactor. Better silver-cadmium-oxide tips and real box lugs; common OEM fit on compressors and refrigeration racks.
- FLA (inductive)
- 30 A @ 600 V max
- LRA (locked rotor)
- 180 A @ 240 V · 150 A @ 480 V
- Resistive
- 40 A
- Single-phase HP
- 2 HP @ 115 V · 5 HP @ 230 V
- Available coil voltages
- Coil suffix B = 24 VAC, A = 120 VAC, T = 208–240 VAC
- Inrush VA
- ≈ 33 VA
- Sealed (holding) VA
- ≈ 6 VA
- Pickup voltage
- ≥ 85% of rated
- Dropout voltage
- ≈ 20–60% of rated
OL = open coil · near zero = shorted turns · coil-to-frame must read >1 MΩ.
Coil resistance checker
Pick the coil voltage, enter your meter reading across A1–A2 (coil disconnected), and compare it to the expected ballpark.
OL = open coil. 0–2 Ω = shorted turns (often from a cooked transformer). Ballpark only (±15%+); electronic wide-range coils (e.g. ABB AF) read misleading values — test those at rated voltage instead. Always measure coil-to-frame too: must be >1 MΩ.
- Packard C230A
- Mars 17455/61471
- Square D 8910DPA32
- Siemens 42BF35AJ
- The C25 family shares mounting holes with most generic DP frames — it is a drop-in upgrade when the cheap one keeps eating tips.
- Suffix decoding: C25B N B 2 30 → B frame, N = no aux, B = 24 VAC coil, 2 poles, 30 A.
Links go to the manufacturer's current catalog or product page — model-specific pages are often retired, so these stay live.