Eaton NZMH2-A50-BT-NA NZM Molded Case Breaker - UL Listed
Part Number: NZMH2-A50-BT-NA
Quick Summary
NZMH2-A50-BT-NA is a molded case circuit breaker designed for reliable distribution circuit protection in industrial power systems. Engineers often grapple with drifted trip settings or nuisance outages that disrupt production and escalate maintenance costs. UL Listed certification ensures safety compliance, while the NZM2 frame and adjustable thermal and magnetic trips support scalable protection; regional approvals may vary. This solution integrates with Eaton protection ecosystems and supports efficient panel commissioning and long-term reliability.
Product Information
Extended Description
NZMH2-A50-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adjustable thermal, adjustable magnetic trip type, Three-pole, 50A, 690 Vac, 750 Vdc, 85-150 kAIC, Box, Distribution circuit protection
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-A50-BT-NA
EAN
4015081074488
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
5.16 lb
Compliances
Contact Manufacturer
Certifications
UL Listed
Amperage Rating
50 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, adjustable magnetic
Circuit breaker type
NZMH2
Terminals
Box
Frame
NZM2
Class
Distribution circuit protection
Interrupt rating
85-150 kAIC
Number of poles
Three-pole
Power Xpert Protection Manager x64
Eaton Specification Sheet - NZMH2-A50-BT-NA
Intelligent power starts with accurate, actionable data
Feature: Adjustable thermal and magnetic trip enables precise load protection and fault isolation. Business Impact: reduces nuisance trips and wear on downstream protection, lowering maintenance costs. Application: ideal for distribution panels and motor control centers in manufacturing facilities. Feature: NZM2 frame with a three-pole design provides compact, robust three-phase protection. Business Impact: simplifies panel layouts and improves coordination with upstream relays. Application: suitable for MCCs and process panels in industrial plants. Feature: 690 Vac / 750 Vdc ratings offer broad compatibility across AC and DC systems. Business Impact: supports multi-voltage installations and future expansions. Application: distribution power rails and DC bus configurations in mixed environments. Feature: Interrupt rating of 85-150 kAIC delivers high fault-current resilience. Business Impact: enhances safety and reduces the risk of downstream damage. Application: data centers, machine cells, and high-demand production lines. Feature: Box terminals simplify wiring and coding during panel assembly. Business Impact: speeds installation and improves safety with secure terminations. Application: new builds and retrofit projects in space-constrained enclosures. Feature: UL Listed certification provides procurement confidence and regulatory alignment. Business Impact: streamlines compliance and vendor qualification. Application: North American panels and commercial/industrial facilities. Feature: Space-efficient NZM2 frame supports flexible installation in dense switchgear. Business Impact: enables tighter cabinet layouts and faster commissioning. Application: modern electrical protection schemes in compact control panels.
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FAQs
Begin with de-energizing the panel and confirming compatibility with the NZM2 frame. Mount the unit securely, connect three phase lines to the box terminals, and adjust the thermal/magnetic trip to the intended protection level. Verify labeling and ensure wiring torque specifications meet the panel’s design standards to minimize risk during operation.
This device is a three-pole MCCB rated for 50 A, with voltage ratings of 690 Vac and 750 Vdc. It features adjustable thermal and magnetic trip, and an interrupt rating from 85 to 150 kAIC, enabling reliable protection against both overloads and short circuits in standard and mixed-voltage installations.
Yes. With its NZM2 frame and three-pole design, the breaker is well-suited for motor control centers and process panels. The box terminals simplify wiring in MCCs, and the adjustable trip settings support tailored motor protection while maintaining compact panel layouts in limited-space installations.
NZMH2-A50-BT-NA is UL Listed, confirming safety conformity for North American use. Regional certifications can vary; verify CE or other approvals with Eaton or your local distributor as part of your procurement process to ensure complete regulatory compliance for your project.
The adjustable trip feature allows precise protection settings, reducing nuisance trips and downtime while optimizing protection for specific loads. Regular testing and straightforward wiring support faster commissioning, lower maintenance labor, and improved overall equipment reliability, contributing to a favorable return on investment in ongoing plant protection schemes.