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Eaton / Moeller Series
40A, 4P, MCCB, thermal-magnetic, 150 kA, 690 V, IEC Only
The Eaton NZMH2-4-A40 is a four-pole molded case circuit breaker from the Moeller NZM series, designed for system and motor protection applications. It features a thermal-magnetic trip unit with an adjustable overload release between 32 A and 40 A, and instantaneous short-circuit protection between 320 A and 400 A. With a rated operational voltage of up to 690 V AC and high short-circuit breaking capacity of 150 kA at 400 V, the device ensures robust protection. It is suitable for front-side screw terminal connections and built-in installations, offering IP20 protection and compliance with IEC/EN 60947.
We source directly from Eaton - 100% genuine, new-in-box certified parts.
| Brand | Eaton Moeller® |
|---|---|
| Model | NZMH2-4-A40 |
| Catalog Number | 265823 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Sub Type | Thermal-magnetic |
| Frame Size | NZM2 |
| Rated Current (In) | 40 A |
| Trip Type | Thermomagnetic |
| Poles | 4P |
| Control Element | Rocker lever |
| Mounting Method | Built-in device, DIN rail optional |
| Weight | 3.0 kg |
| Dimensions (H × W × D) | 184 mm × 140 mm × 149 mm |
| Voltage Rating (Ue) | 690 V AC |
|---|---|
| Rated Insulation Voltage (Ui) | 1000 V AC |
| Impulse Withstand Voltage (Uimp) | 8000 V (main), 6000 V (auxiliary) |
| Overload Setting Range | 32 – 40 A |
| Short-Circuit Release (Non-delayed) | 320 – 400 A |
| Breaking Capacity (Ics at 400 V) | 150 kA |
| Breaking Capacity (Ics at 690 V) | 5 kA |
| Making Capacity (Icm at 400 V) | 330 kA |
| Short-Circuit Break Time | < 10 ms |
| Lifespan (Electrical) | 5000 – 10000 operations |
| Lifespan (Mechanical) | 20000 operations |
| Operating Temperature | -25 °C to +70 °C |
| Storage Temperature | -40 °C to +70 °C |
| Degree of Protection | IP20 (basic), IP40/IP66 (with accessories) |
| Connection Type | Screw terminal (front side) |
| Compliances | RoHS, IEC/EN 60947 |
| Utilization Category | A (IEC/EN 60947-2) |
| Application | Motor/system protection, 690 V unearthed systems |
Doing business with KM Parts has been a game-changer for our company. Their vast inventory and prompt same-day shipping have significantly minimized our downtime. The team's expertise and willingness to go the extra mile have made them an invaluable partner in our industrial automation needs.
We only sell authorized Eaton/Moeller parts. No knock-offs, no used parts, all warrantied. As the largest authorized stocking USA distributor representing Eaton/Moeller, we’re here to help your company run smoothly, with the best parts available, at competitive pricing, and with minimal downtime.
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