Description

The Eaton NZMN4‑AE800‑NA Molded Case Circuit Breaker is a heavy-duty 3-pole, 800-amp molded case circuit breaker (MCCB) from the Eaton NZM Series Circuit Breakers manufactured by Eaton Corporation. It is designed to provide dependable protection for electrical distribution systems against overload and short-circuit faults in industrial facilities, commercial buildings, and power distribution panels.

Built on the NZM4 frame platform, this breaker is rated for operation up to 600 VAC and uses a thermal-magnetic trip unit that ensures reliable protection with adjustable overload settings between 400 and 800 amps. The breaker is engineered for distribution circuit protection, helping safeguard cables, feeders, and electrical equipment from excessive current conditions.

The NZMN4-AE800-NA features a front-screw connection design and a bolt-on mounting configuration, enabling secure installation in switchboards, panelboards, and industrial control systems. With a short-circuit interrupting capacity of 50 kA at 400 VAC, the breaker provides strong fault protection in medium- to high-power electrical networks.

EATON NZMN4 As part of Eaton’s globally recognized NZM protection platform, the breaker supports optional accessories such as motor operators, auxiliary contacts, shunt trips, and undervoltage releases, allowing flexible integration into modern electrical protection and control systems.