Product Description
The Klockner/Moeller NZM6B/ZM6-63-CNA (catalog designation NZM6B-63/ZM6-63) is a 3-pole molded case circuit breaker (MCCB) built on a 63A frame and equipped with the ZM6-63 adjustable thermal-magnetic trip module. It provides adjustable thermal overload protection from 40–63A and adjustable magnetic (instantaneous) short-circuit protection from 400–800A, making it well-suited for motor branch circuit protection, feeder circuits, and main switchboard applications. Conforming to IEC/EN 60947-2, UL 489, and CSA C22.2 No. 5.1, this breaker is designed for demanding industrial environments including mining, pulp & paper, food processing, nuclear power, and marine applications. Currently manufactured by Eaton Corporation (formerly Klockner/Moeller).
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Klockner/Moeller |
| Model / Part Number | NZM6B/ZM6-63 (NZM6B-63/ZM6-63) |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Frame / Continuous Current Rating | 63A |
| Number of Poles | 3-Pole |
| Rated Voltage (AC) | 600V AC (rated up to 690V AC) |
| Frequency | 50/60 Hz |
| Trip Module | ZM6-63 — Adjustable Thermal-Magnetic |
| Thermal Trip Range (Overload) | 40–63A (Adjustable) |
| Magnetic Trip Range (Instantaneous) | 400–800A (Adjustable) |
| Short-Circuit Interrupting Capacity @ 240V/480V | 25kA |
| Short-Circuit Interrupting Capacity @ 600V | 14kA |
| HP Rating — 3-Phase @ 230V | 20 HP |
| HP Rating — 3-Phase @ 460V | 40 HP |
| HP Rating — 3-Phase @ 575–600V | 60 HP |
| Trip Type | Inverse Time, Thermal-Magnetic |
| Standards / Certifications | UL 489, CSA C22.2 No. 5.1, IEC/EN 60947-2, CE Marked |
| Terminal Type | Cable / Field-Wiring Terminals (Line & Load) |
| Operating Handle | Sold Separately |
| Series / Product Family | NZM6 / NZM6B |
| Manufacturer (Current) | Eaton Corporation (formerly Klockner/Moeller) |
| Typical Applications | Motor Protection, Feeder Circuits, Main Switchboards |
We warranty all items for 30 days from date of purchase.
