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Eaton / Moeller Series
300A, 3P, MCCB, Electronic Trip, UL/CSA/IEC/CE
The Eaton NZMH3-VEF300-NA (Catalog No. 269317) is a 300A, 3-pole molded case circuit breaker with an electronic trip unit, ideal for branch, feeder, selectivity, and generator protection. It is built on the NZM3 frame and delivers advanced current-limiting protection with fixed overload (Ir = 300A) and adjustable short-circuit settings. It supports high interrupting capacities up to 150kA at 400/415V (IEC) and 100kA at 480V (UL). The unit features a screw terminal design for front-side connection, is finger-safe to DIN EN 50274, and operates reliably over a wide temperature range. Certified to UL, CSA, IEC, and CE standards, it supports safe integration into demanding low-voltage installations.
Country of Origin: DE
We source directly from Eaton - 100% genuine, new-in-box certified parts.
| Brand | Eaton Moeller |
|---|---|
| Model | NZMH3-VEF300-NA |
| Catalog Number | 269317 |
| Series | NZM3 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Amperage | 300 A |
| Poles | 3 |
| Trip Type | Electronic |
| Frame Size | NZM3 |
| Handle Type | Rocker lever |
| Mounting Method | Fixed installation |
| Terminal Type | Screw connection (front side) |
| Voltage Rating | 690 V AC |
|---|---|
| Rated Insulation Voltage (Ui) | 1000 V AC |
| Impulse Withstand Voltage (Uimp) | 8000 V (main), 6000 V (auxiliary) |
| Interrupting Capacity (IEC 60947-2) | 150 kA @ 400/415 V, 130 kA @ 440 V, 9 kA @ 690 V |
| Making Capacity (Icm) | 330 kA @ 400/415 V |
| Overload Setting (Ir) | 300 A (fixed) |
| Short Delay Current Setting (Isd) | 600 – 3000 A |
| Instantaneous Trip Setting (Ii) | 600 – 3300 A |
| Short-Circuit Break Time | < 10 ms |
| Utilization Category | A (IEC/EN 60947-2) |
| Degree of Protection | IP20 (basic), IP66 (handle), IP40 (front) |
| Ambient Operating Temperature | -25 °C to 70 °C |
| Certifications | UL 489, CSA, IEC 60947-2, CE |
| Compliances | RoHS conform |
| Mechanical Lifespan | 15,000 operations |
| Electrical Lifespan | 5000 ops @ 400 V AC-1, 3000 ops @ 690 V AC-1 |
| Heat Dissipation | 27 W |
| Dimensions (HxWxD) | 297 mm × 140 mm × 166 mm |
| Weight | 6.34 kg |
| Electrical Connection | Screw terminals, front |
| Connection Position | Front side |
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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