Eaton NZMN2-AF250-NA NZM complete molded case circuit breaker - 50 kAIC
Part Number: NZMN2-AF250-NA
Quick Summary
NZMN2-AF250-NA is a molded case circuit breaker designed to protect electrical distribution panels in industrial facilities. Engineers often struggle to balance high inrush handling, precise trip settings, and maintenance overhead in compact enclosures. Typical certifications for this class of MCCB include CE, IEC safety standards, and UL paths; confirm specifics with Eaton to ensure project compliance. The device's robust 250 A overload range, 50 kAIC interrupt rating, and three-pole configuration support reliable, scalable protection across motor drives and panel feeders. Easy front-screw installation and optional motor-drive accessories help reduce commissioning time and spare-parts inventory, delivering measurable lifecycle cost benefits while maintaining electrical protection integrity for industrial applications.
Product Information
Extended Description
NZMN2-AF250-NA Eaton: MCCB NZM, NZM2 TM and Elec. Breakers, Circuit Breaker, 250-250A OL Prot. Rng, Screw connection, front, Three-pole, 250A Perm. Current, 50 kA, 250-250A Set. Rng OL Prot., 1500-2500A Undelayed Adj. Rng., Rocker lever, motor drive optional
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN2-AF250-NA
EAN
4015082711023
Product Length/Depth
5.866 in
Product Height
4.134 in
Product Width
4.134 in
Product Weight
5.37 lb
Warranty
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.
Certifications
Contact Manufacturer
Amperage Rating
250 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
T268
Circuit breaker type
NZMN2
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
1500-2500A delayed
Setting Range Ol Protector
250-250A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC
Connection
Front screw
Overload range
250-250A
Number of poles
Three-pole
Feature: Amperage rating of 250 A, voltage rating of 690 Vac / 750 Vdc, trip type T268, frame NZM2, and class for distribution circuit protection. Business impact: Enables safe, scalable protection for medium-sized industrial feeders and panel boards, reducing nuisance trips and enabling coordinated protection with downstream devices. Application: Suitable for control rooms, manufacturing lines, and process panels where consistent protection and quick fault isolation are required. Feature: Front screw connection with a three-pole design and a 50 kAIC interrupt rating. Business impact: Promotes robust, reliable fault clearance and simplifies wiring during installation, minimizing downtime and field labor. Application: Ideal for compact switchgear and panel assemblies in tight enclosures. Feature: Adjustment range for short-circuit release (1500-2500A delayed) and setting range OL protector (250-250A). Business impact: Provides flexible coordination with upstream protection and motor loads, reducing miscoordination risk and enabling safe startup sequences. Application: Supports motor-driven processes and high-inertia loads in continuous operations. Feature: Accessories including rocker lever and motor-drive options. Business impact: Improves operator ergonomics and enables streamlined control integration, lowering training time and maintenance effort. Application: Panel-mounted control circuits and motor-control centers. Feature: Dimensions and weight (5.866 in L, 4.134 in W, 4.134 in H, 5.37 lb) plus warranty terms. Business impact: Facilitates panel densification planning and predictable maintenance windows under Eaton policy. Application: Warehouse, packaging lines, and process automation where space and serviceability matter.
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FAQs
The NZMN2-AF250-NA uses front screw terminals for secure, accessible wiring. Verify panel knockouts, torque specifications for the terminal screws, and confirm alignment with the NZM2 frame to ensure proper seating and clearance for mounting and wiring. Use appropriate tightening torque per manufacturer guidelines to maintain reliable connections.
This MCCB provides a 50 kAIC interrupt rating, suitable for coordination with upstream protection devices in distribution panels. It protects feeders and motors against high-energy faults, helping to minimize damage and downtime in industrial installations.
Yes. The device supports motor-drive options and includes accessories such as a rocker lever. It is designed as a three-pole NZM2 frame MCCB with a front screw connection, enabling straightforward integration into motor control centers and panel assemblies.
The breaker is rated for 690 Vac and 750 Vdc, making it suitable for distribution panels in manufacturing, processing, and heavy machinery environments where reliable AC and DC protection is required.
Warranty is Eaton’s standard policy: one year from installation or eighteen months from shipment, whichever comes first. Certifications are typically coordinated with the manufacturer; verify current confirmations (CE/IEC/UL) with Eaton for your project needs.