We source directly from Eaton - 100% genuine, new-in-box certified parts.
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Eaton / Moeller Series
40A, 3P, breaker, fixed thermal
Eaton NZMB1-AF40-NA molded case circuit breaker 40 amp, 3 pole, short circuit release 320-4000A, fixed thermal trip 40 amps, system and cable protection, rated voltage 480 Y / 277 V, rated insulation voltage 690V, switching capacity 35kA@240V, 25kA@480V, 18kA@600V, box terminal connections, toggle switch operation, UL/CSA/IEC certified, frame size 1
Country of Origin: DE
We source directly from Eaton - 100% genuine, new-in-box certified parts.
| Brand | Eaton / Moeller |
|---|---|
| Model | NZMB1-AF40-NA |
| Catalog Number | 272205 |
| Series | NZM |
| Product Type | Molded Case Circuit Breaker |
| Amperage | 40 A |
| Poles | 3 |
| Trip Type | Thermomagnetic |
| Frame Size | NZM1 |
| Mounting | Fixed or DIN rail (optional) |
| Handle Type | Rocker lever |
| Connection Type | Box terminal (front-side) |
| Voltage Rating | 440 V |
|---|---|
| Rated Insulation Voltage (Ui) | 690 V AC |
| Rated Impulse Withstand Voltage | 6 kV |
| Interrupting Capacity (Ics) | 30 kA @ 230 V, 25 kA @ 400/415 V, 18.5 kA @ 440 V |
| Making Capacity (Icm) | 63 kA @ 240 V, 53 kA @ 400–440 V |
| Short-Circuit Release | 400 A (adjustable 320–400 A) |
| Overload Current Setting (Ir) | Fixed at 40 A |
| Power Loss | 10.7 W |
| Heat Dissipation | 10.66 W (current-dependent) |
| Rated Operational Voltage (UL) | 480Y / 277 V |
| Rated Operational Current (Ie) | 160 A @ 380/400 V AC-1; 125 A @ 415 V AC-1 |
| Operating Temperature Range | -25 °C to +70 °C |
| Storage Temperature Range | -40 °C to +70 °C |
| Mechanical Lifespan | 20,000 operations |
| Electrical Lifespan | 7,500 operations @ 400 V AC-1 |
| Max Operations per Hour | 120 |
| Protection Degree (Front) | IP66 (with rotary handle), IP40 (with surround) |
| Protection Degree (Terminals) | IP10 / IP00 |
| Certifications | UL 489, CSA C22.2 No. 5-09, CE, IEC 60947-2 |
| Pollution Degree | 3 |
| Utilization Category | Category A (IEC/EN 60947-2) |
| Shock Resistance | 20 g / 20 ms |
| Applications | Branch and feeder circuits, unearthed systems (440 V) |
| Special Features | Current-limiting, UL/CSA/IEC compliant, max backup fuse 200 A |
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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