Searching...

Eaton / Moeller Series

NZMB1-4-A40265799

In Stock

40A, 4P, breaker, thermal-magnetic, 25kAIC, IEC/UL

The Eaton NZMB1-4-A40 is a four-pole molded case circuit breaker from the NZM1 frame series, designed for distribution circuit protection. Rated at 40A with a trip range of 320-400A and a thermal-magnetic trip type (T268), it offers dependable performance for industrial applications. It supports up to 440 Vac with an interrupting capacity of 25 kAIC. The breaker includes a rocker lever operator, front frame clamp connection, and adjustable overload protection from 32–40A. Certified to IEC/UL standards.

Country of Origin: DE

HTS Code: 8536.30.8000

Eaton Authorized Distributor

We source directly from Eaton - 100% genuine, new-in-box certified parts.

Call Us for a Quote

Request A Quote

Get custom pricing and expert help—before or after you buy.
Fill Out Contact Form
  • Product Specifications
  • Technical Specifications
  • Warranty
Brand Eaton
Model NZMB1-4-A40
Series NZM1
Product Type Molded Case Circuit Breaker
Trip Type Thermal-magnetic (T268)
Amperage 40 A
Poles 4
Trip Rating 320-400 A
Frame NZM1
Operator Rocker lever
Connection Front frame clamp
Voltage Rating 440 Vac
Interrupting Capacity 25 kAIC
Overload Protection Range 32–40 A
Short-Circuit Breaking Capacity 25 kAIC
Insulation Voltage Not specified
Wiring Front frame clamp
Certifications IEC/UL (Contact manufacturer for details)

Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.

Ask us a Question about this product

Please fill out this form and someone from our team will contact you as soon as possible. You can also reach us by phone at (866) 595-9616 or by email at sales@kmparts.com.
Product Page Contact Form

Customer Reviews

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.

Authorized Seller

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.

Learn More  >