Eaton NZMB2-S63-BT-CNA Molded Case Breaker - 25 kAIC
Part Number: NZMB2-S63-BT-CNA
Quick Summary
The Eaton NZMB2-S63-BT-CNA molded case circuit breaker is designed to protect motor circuits and power feeds in industrial panels. The goal is to minimize nuisance trips and downtime by providing precise magnetic protection and robust fault interruption. In practice, CE/IEC-style compliance considerations and enclosure integration are common in industrial environments; verify exact certifications with the manufacturer. For panel builders, this solution delivers reliable motor protection without overload release, with easy front-frame mounting and compatible accessories to streamline installation and long-term maintenance.
Product Information
Extended Description
NZMB2-S63-BT-CNA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMB2, Magnetic only trip, Three-pole, 63A, 440 Vac, 25 kAIC, Box, Motor protection without overload release, Rocker lever, motor drive, 504-882A delayed, Front frame clamp
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-S63-BT-CNA
EAN
4015081073276
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
4.1 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.
Compliances
Contact Manufacturer
Amperage Rating
63 A
Voltage rating
440 Vac
Trip Type
Magnetic only
Circuit breaker type
NZMB2
Terminals
Box
Frame
NZM2
Class
Motor protection without overload release
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
504-882A delayed
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front frame clamp
Number of poles
Three-pole
Power Xpert Protection Manager x64
Eaton Specification Sheet - NZMB2-S63-BT-CNA
Intelligent power starts with accurate, actionable data
Feature: Magnetic-only trip with 63 A rating and 25 kAIC interrupt capacity. Business Impact: Ensures fast, reliable short-circuit clearance to protect wiring and equipment, reducing unplanned downtime in motor-driven applications. Application: Effective for machine controls and conveyor systems within 440 Vac distribution networks. Feature: NZM2 frame with three-pole construction and 4.05 in depth. Business Impact: Compact footprint supports dense panel layouts and simplified wiring schemes, lowering enclosure costs. Application: New panel builds and retrofit projects where space is at a premium. Feature: Front frame clamp terminals and box connections. Business Impact: Simplifies installation and reduces field wiring errors, improving commissioning speed. Application: Control panels in manufacturing lines and automated systems. Feature: Rocker lever and motor-drive accessories. Business Impact: Improves operability and integration with soft starters and drives, enhancing control fidelity. Application: Motor drive applications requiring quick on/off accessibility. Feature: Adjustment range for short-circuit release (504-882 A, delayed). Business Impact: Enables tailored coordination with upstream protection to optimize protection schemes. Application: Industrial motor feeders with coordinated protection. Feature: Motor protection without overload release classification. Business Impact: Reduces nuisance trips in motor circuits while providing dependable circuit protection. Application: Motor protection strategy in automation and equipment rooms.
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FAQs
Install the three-pole NZMB2-S63-BT-CNA using the front frame clamp terminals with standard box connections. The unit fits within the NZM2 frame footprint and supports an uncomplicated wiring scheme, aided by its 4.05 in depth and 4.13 in width. Use appropriate lugs and torque settings per Eaton guidance to ensure reliable electrical contact and fault clearing.
This model provides a 63 A continuous rating, 440 Vac line voltage, and magnetic-only trip with a 25 kAIC interrupt rating, suitable for fast short-circuit interruption. It supports a three-pole configuration and is designed for motor protection without overload release, aligning with typical motor‑control panel protection schemes.
Yes. The breaker is specified for motor protection without overload release and includes motor-drive compatible accessories such as a rocker lever. Its magnetic-trip design is well-suited for protection of motor circuits in automated lines, conveyors, and pump drives within 440 Vac systems.
Compliances are listed as Contact Manufacturer, so confirm exact certifications with Eaton for your region. In practice, consider CE/IEC alignment and enclosure-specific IP considerations when integrating into industrial panels, and verify compatibility with your control standards before installation.
The product carries Eaton’s warranty terms of one year from installation or eighteen months from shipment, whichever comes first. This supports procurement risk reduction and uptime, while straightforward spare-part planning and use in motor protection applications help lower maintenance and unexpected downtime costs.