Eaton NZMB2-S200-BT-CNA MCCB - 25 kAIC Magnetic
Part Number: NZMB2-S200-BT-CNA
Quick Summary
NZMB2-S200-BT-CNA is a complete molded case circuit breaker designed for motor protection in industrial panels. Engineers often struggle to select devices that reliably handle high short-circuit duties while preserving smooth motor startups. In practice, buyers look for CE compliance, IP-rated enclosure protection, and SIL/IEC safety certifications to ensure safety, reliability, and long-term uptime. This model delivers robust 200 A protection at 440 V with magnetic-only trip, enabling compact motor-protection schemes, easier panel integration, and predictable maintenance cycles for industrial automation environments.
Product Information
Extended Description
NZMB2-S200-BT-CNA Eaton: MCCB NZM, NZM2 Mag Only Breakers, Circuit Breaker, Frame clamp, front, Three-pole, 200A Perm. Current, 25 kA, 1600-2500A Undelayed Adj. Rng., Rocker lever, motor drive optional
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMB2-S200-BT-CNA
EAN
4015081073320
Product Length/Depth
5.51 in
Product Height
5.86 in
Product Width
5.86 in
Product Weight
5.17 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
200 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
1600-2500A delayed
Short-circuit breaking capacity
25 kAIC
Interrupt rating
25 kAIC
Connection
Front frame clamp
Number of poles
Three-pole
Feature → Business Impact → Application: The NZMB2-S200-BT-CNA uses a magnetic-only trip with a 25 kAIC short-circuit rating, delivering fast, reliable fault interruption that minimizes equipment damage and downtime in motor-driven applications. This translates to higher system availability and safer shutdown sequences in manufacturing lines and process control panels, especially where motors start under heavy load. Application: Motor control centers and drive-protected panels get improved protection margins with the 200 A amperage rating, reducing nuisance trips during startup and enabling smoother integration with soft starters or VFDs. Feature → Business Impact → Application: Frame clamp front-termination and NZM2 frame compatibility simplify installation, enabling quicker panel integration and reduced assembly costs. Application: Replacement MCCB in existing NZM2-based architectures, retrofit projects, and modular control panels. Feature → Business Impact → Application: Adjustable short-circuit release range (1600-2500 A delayed) allows tailored coordination with upstream protection relays, improving selectivity and reducing aftermarket fault investigation time. Application: Systems requiring precise coordination with upstream protection. Feature → Business Impact → Application: Accessories such as rocker lever and motor drive support streamline configuration, enabling easier field operation and maintenance. Application: Field-adjustable protection during commissioning and remote motor-drive setups.
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FAQs
The NZMB2-S200-BT-CNA is designed for the NZM2 frame and uses front-frame clamp terminals, enabling straightforward mounting in existing NZM2-based enclosures. This reduces installation time, minimizes wiring complexity, and supports clean enclosure layouts in motor protection and switchgear assemblies.
This MCCB provides a 25 kAIC short-circuit breaking capacity with a magnetic-only trip. Magnetic trips respond rapidly to high fault currents, protecting motors and drives during startup and fault events without the delays associated with thermal elements, improving uptime in high-load environments.
Yes. With a 200 A rating and 440 Vac capability, this MCCB is well-suited for motor control centers and drive-protected panels in industrial settings. While enclosure IP and regional certifications should be confirmed with the manufacturer, its robust magnetic protection supports reliable operation in demanding environments.
Certifications for this product are listed as Contact Manufacturer, so verify region-specific approvals (for example CE/UL where applicable) with Eaton or your distributor. For safety and compliance, ensure the unit meets local electrical codes and that any required certifications are documented in the project specs.
Field maintenance is simplified by the modular NZM2 frame and front-frame clamp design, which supports quick replacement and routine checks. Ensure coordination with upstream protection devices to maintain proper coordination and selectivity, and use the rocker lever or motor-drive accessories as needed to tailor operation during commissioning.