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Eaton / Moeller Series
50A, 3P, breaker, thermomagnetic trip, IEC/UL/CSA
The Eaton Moeller NZMB2-S50-BT-CNA (Catalog Number: 107660) is a molded case circuit breaker from the NZM2 frame series, rated at 50A. It uses a thermomagnetic trip mechanism for short-circuit protection but does not include overload release. Designed for motor protection in conjunction with a contactor and overload relay, this 3-pole breaker delivers 25 kAIC interrupting capacity at 440 V. It is suitable for branch and feeder circuits, including unearthed supply systems, and conforms to UL/CSA and IEC standards. The breaker supports fixed mounting with optional DIN rail, multiple terminal types, and is rated for 20,000 mechanical operations.
Country of Origin: DE
We source directly from Eaton - 100% genuine, new-in-box certified parts.
| Brand | Eaton Moeller |
|---|---|
| Model | NZMB2-S50-BT-CNA |
| Catalog Number | 107660 |
| Series | NZM2 |
| Product Type | Molded Case Circuit Breaker |
| Trip Type | Thermomagnetic |
| Amperage | 50A |
| Poles | 3 |
| Frame Size | NZM2 |
| Mounting Method | Fixed, DIN rail optional |
| Application | Motor protection with contactor and overload relay |
| Voltage Rating | 440 V |
|---|---|
| Interrupting Capacity | 25 kAIC |
| Short-Circuit Total Break Time | < 10 ms |
| Overload Release | Not included |
| Isolation | 500 V AC (aux vs. main), 300 V AC (between auxiliary contacts) |
| Degree of Protection | IP20 base; IP40 with surround; IP66 with rotary handle |
| Certifications | UL Listed, CSA Certified, CE, IEC 60947-2, UL 489 |
| Compliance | RoHS conform |
| Lifespan (Mechanical) | 20,000 operations |
| Lifespan (Electrical) | 7,500 ops @ 400 V AC-1, 6,500 ops @ 415 V AC-3 |
| Terminal Connection Type | Frame clamp |
| Heat Dissipation | 2.38 W (current-dependent) |
| Shock Resistance | 20 g (20 ms half-sinusoidal) |
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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