Eaton NZMH2-AF90-BT-NA Molded Case Breaker - UL Listed
Part Number: NZMH2-AF90-BT-NA
Quick Summary
NZMH2-AF90-BT-NA molded case breaker provides reliable overcurrent protection for distribution panels and control cabinets. Engineers often struggle with correctly setting trip thresholds and coordinating protection across high-energy industrial lines. This unit carries UL Listed safety certification and is designed for demanding electrical systems with a 90 A rating, three-pole configuration, adjustable thermal trip, and fixed magnetic protection up to 150 kAIC. Its combination of compact front-frame mounting and robust box terminals supports fast installation, simplified maintenance, and easier component replacement in harsh environments. By selecting the NZM2 frame device, you gain dependable circuit protection with clear diagnostic potential in manufacturing, process automation, and automotive supply chains.
Product Information
Extended Description
NZMH2-AF90-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adj. thermal, fixed magnetic trip, Three-pole, 90A, 690 Vac, 750 Vdc, 85-150 kAIC, Box, Distribution circuit protect., 90-90A, Front frame clamp, 90-90A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-AF90-BT-NA
EAN
4015081074679
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
Certifications
UL Listed
Amperage Rating
90 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, fixed magnetic
Circuit breaker type
NZMH2
Terminals
Box
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
600-1000A delayed
Setting Range Ol Protector
90-90A
Short-circuit breaking capacity
150 kAIC
Interrupt rating
85-150 kAIC
Connection
Front frame clamp
Overload range
90-90A
Number of poles
Three-pole
Feature: Adjustable thermal trip with fixed magnetic protection. Business Impact: Enables precise overload protection while reducing nuisance trips, improving equipment uptime. Application: Ideal for control panels and distribution cabinets where load profiles vary during startup and steady-state operation. Feature: 90 A amperage rating with a 690 Vac / 750 Vdc voltage capability. Business Impact: Supports safe operation across both AC and DC networks, enabling one device to protect mixed-supply machinery. Application: Suitable for industrial automation lines and machine centers needing versatile protection. Feature: Three-pole NZMH2 with front frame clamp terminals on the NZM2 frame. Business Impact: Improves mechanical stability and simplifies wiring and maintenance, reducing installation time by teams on the floor. Application: Main feeders and panel boards requiring reliable multi-pole protection. Feature: Short-circuit breaking capacity up to 150 kAIC, interrupt rating 85–150 kAIC. Business Impact: Robust fault handling for high-energy systems, minimizing arc flash risk and downtime. Application: Large industrial drives, processes, and distribution feeders with high fault currents. Feature: Accessories include rocker lever and motor drive options. Business Impact: Enhances ergonomics for testing and remote operation, boosting versatility and retrofit adaptability. Application: Retrofit projects and new installations where manual operation and motorized control are beneficial. Feature: UL Listed compliance and a compact, modular design. Business Impact: Simplifies procurement, regulatory alignment, and serviceability, while fitting into standard enclosures. Application: Global manufacturing facilities with strict safety requirements and space constraints.
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FAQs
Yes. The NZMH2-AF90-BT-NA uses a front-frame clamp connection designed for the NZM2 frame, enabling swift and secure wiring in distribution panels. This compatibility minimizes field wiring errors and simplifies future maintenance, making it a practical choice for panel builders and service teams.
It provides a 90 A current rating with a voltage capability of 690 Vac and 750 Vdc. The trip mechanism combines adjustable thermal protection with fixed magnetic protection, delivering reliable overload and short-circuit protection up to 150 kAIC, suitable for high-energy industrial applications.
Absolutely. The three-pole design, NZM2 frame, and robust short-circuit capability make it well-suited for distribution panels in manufacturing and automation settings. It supports safe, scalable protection for multiple feeders while simplifying integration with existing Eaton components and standard enclosures.
The unit is UL Listed, indicating safety compliance for North American installations. For multi-region deployments, verify regional applicability with your compliance team or Eaton’s technical support to ensure alignment with local standards and any CE or regional certifications required for your facility.
The adjustable thermal trip minimizes nuisance trips and protects equipment more precisely, reducing downtime and maintenance costs. Front-frame mounting plus accessible wiring layouts speeds installation, while UL Listing supports regulatory confidence, contributing to faster project approval and long-term operational savings.