We source directly from Eaton - 100% genuine, new-in-box certified parts.
Searching...
Eaton / Moeller Series
40A, 4P, breaker, thermomagnetic, IEC
The Eaton/Moeller NZMN1-4-A40 is a molded case circuit breaker from the NZM1 (Frame 1) series, providing 40 A rated current across four poles. It features a thermomagnetic release adjustable from 32–40 A for overload protection and 320–400 A (8–10 × In) for short-circuit protection. Rated for up to 690 V operational voltage, it delivers breaking capacities of 85 kA at 240 V, 50 kA at 400/415 V, and 35 kA at 440 V. The breaker uses a rocker lever operator and fixed installation with box terminals (optional tunnel or rear connections). Offering IP20 basic protection (up to IP66 with accessories), it meets IEC/EN 60947 standards, is finger- and back-of-hand proof to VDE 0106, and supports rugged industrial use with 20,000 mechanical and 10,000 electrical operations. Operating reliably from −25 °C to +70 °C, the NZMN1-4-A40 ensures safe and durable system and cable protection.
Country of Origin: DE
We source directly from Eaton - 100% genuine, new-in-box certified parts.
| Brand | Eaton / Moeller |
|---|---|
| Series | NZM |
| Model | NZMN1-4-A40 |
| Catalog Number | 265811 |
| Product Type | Molded Case Circuit Breaker |
| Frame Type | NZM1 / Frame 1 |
| Trip Unit | Thermomagnetic release |
| Amperage Rating | 40 A (adjustable 32–40 A) |
| Short-Circuit Release | 320–400 A (8–10 × In) |
| Number of Poles | 4 |
| Operator | Rocker lever |
| Mounting | Fixed installation |
| Terminals | Box terminal (optional tunnel or rear) |
| Protection Against Contact | Finger and back-of-hand proof (VDE 0106) |
| Weight | — |
| Rated Insulation Voltage (Ui) | 690 V |
|---|---|
| Rated Operational Voltage (Ue) | 690 V AC |
| Impulse Withstand Voltage (Uimp) | 6 kV |
| Icu (Breaking Capacity) | 85 kA at 240 V; 50 kA at 400/415 V; 35 kA at 440 V; 20 kA at 525 V; 10 kA at 690 V |
| Ics (Service Capacity) | 85 kA at 240 V; 50 kA at 400/415 V; 35 kA at 440 V; 10 kA at 525 V; 7.5 kA at 690 V |
| Icm (Making Capacity) | 187 kA at 240 V; 105 kA at 400/415 V; 74 kA at 440 V; 40 kA at 525 V; 17 kA at 690 V |
| Utilization Category | A (IEC/EN 60947-2) |
| Power Loss (at In) | 10.66 W |
| Total Break Time | < 10 ms |
| Degree of Protection | IP20 (basic), IP40 with surround, IP66 with rotary handle |
| Ambient Operating Temp. | −25 °C to +70 °C |
| Mechanical Life | 20,000 operations |
| Electrical Life | 10,000 operations at 400/415 V; 7,500 at 690 V |
| Terminal Capacity (Cu wire) | 10–70 mm² stranded (up to 95 mm² depending on cable manufacturer) |
| Conductor Types | Copper or aluminum; busbar connection supported |
| Shock Resistance | 20 g (IEC 60068-2-27) |
| Climatic Proofing | Damp heat (IEC 60068-2-78, -2-30) |
| Certifications / Standards | IEC/EN 60947; VDE 0106; RoHS conform |
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.
Fax: +1 (941) 473-0987
