The ENW24255 is a fixed-mount, 4-pole EasyPact NW circuit breaker rated 1250 A at 40 °C, with a breaking capacity of 66 kA Icu at 440 V AC and 50 kA Icu at 690 V AC per IEC 60947-2. The 690 V operational voltage (Ue) covers standard 400/480 V systems with headroom for 690 V industrial networks. The 1250 A frame is sized for large distribution loads — transformers, busway feeds, or high-density motor control centers. The 12 kV impulse withstand (Uimp) confirms it handles surge events typical of industrial mains.
ENW24255 EasyPact NW Circuit Breaker, 1250 A, 66 kA
MPNENW24255
Active
Schneider Electric EasyPact NW, circuit breaker, ENW24255, 4P, 1250 A, 66 kA Icu at 440 V AC, IEC 60947-2.
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MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
Identification
| Parameter | Value |
|---|---|
| Product type | Circuit breaker |
| Range | EasyPact |
| Product range | EasyPact NW |
| Application | Distribution |
Electrical ratings
| Parameter | Value |
|---|---|
| Rated current (In) | 1250 A at 40 °C |
| Rated operational voltage (Ue) | 690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Poles | 4P |
| Rated insulation voltage (Ui) | 1000 V AC 50/60 Hz conforming to IEC 60947-2 |
| Rated impulse withstand voltage (Uimp) | 12 kV conforming to IEC 60947-2 |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Suitable for isolation | Yes conforming to IEC 60947-2 |
Breaking & withstand capacity
| Parameter | Value |
|---|---|
| Rated service breaking capacity (Ics) | 65 kA (Ics) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA (Ics) at 690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Rated short-time withstand current (Icw) | 65 kA (1 s) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA (1 s) at 690 V AC 50/60 Hz conforming to IEC 60947-2 36 kA (3 s) at 440/690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Rated short-circuit making capacity (Icm) | 143 kA (Icm) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 105 kA (Icm) at 690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Breaking capacity | 66 kA Icu at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Breaking capacity code | H |
Performance
| Parameter | Value |
|---|---|
| Breaking time, max. | 25 ms |
| Closing response time, max. | 70 ms |
| Mechanical durability (cycles) | 20000 cycles (with maintenance) conforming to IEC 60947-2 10000 cycles (without maintenance) conforming to IEC 60947-2 |
| Electrical durability (cycles) | Category B: 6000 cycles 440 V AC 50/60 Hz without maintenance conforming to IEC 60947-2 Category B: 4000 cycles 690 V AC 50/60 Hz without maintenance conforming to IEC 60947-2 |
| Utilisation category | Category B |
Mechanical & connection
| Parameter | Value |
|---|---|
| Control type | Push-button |
| Mounting mode | Fixed |
| Mounting support | Base plate |
| Contact position indicator | Yes |
| Width | 537 mm |
| Height | 352 mm |
| Depth | 297 mm |
| Neutral pole position | Right |
| Connection pitch | 115 mm without spreader |
| Connection location | Rear |
Environmental
| Parameter | Value |
|---|---|
| Operating ambient temperature | -5...60 °C |
| Storage ambient temperature | -40...85 °C without control unit -25...85 °C with control unit |
| IP degree of protection | IP40 |
| Pollution degree | 4 conforming to IEC 60664-1 |
Approvals
| Parameter | Value |
|---|---|
| Standards | IEC 60947-2 |
Product details
Frequently asked questions
What is the breaking capacity of ENW24255?
66 kA Icu at 220…440 V AC and 50 kA Icu at 690 V AC, both per IEC 60947-2.
What standards does ENW24255 comply with?
IEC 60947-2 for circuit breakers, IEC 60664-1 for pollution degree 4, and it's suitable for isolation per IEC 60947-2.
MPN
ENW24255