Eaton NZMH2-A100-NA Molded Case Circuit Breaker - Adjustable Trip
Part Number: NZMH2-A100-NA
Quick Summary
NZMH2-A100-NA is a versatile molded case circuit breaker for distribution protection in industrial power systems. Engineers often face nuisance trips or miscoordination when protection settings aren’t tuned to load profiles; this device’s adjustable thermal and magnetic trip addresses that challenge. In addition to its flexible trip, customers typically rely on CE/UL-like, IP-related, and safety certifications to meet project requirements, so verify the exact approvals with Eaton for your configuration. The NZM2-frame design supports standardized panel layouts, while precise current management helps reduce downtime and prevent equipment damage. By integrating this MCCB into your protection scheme, you gain predictable operation, streamlined maintenance, and scalable protection across multiple feeders and stations.
Product Information
Extended Description
NZMH2-A100-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMH2, Adjustable thermal, adjustable magnetic trip type, Three-pole, 100A, 690 Vac, 750 Vdc, 85-150 kAIC, Distribution circuit protection, Screw
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMH2-A100-NA
EAN
4015082692353
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
5.17 lb
Compliances
Contact Manufacturer
Amperage Rating
100 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
Adjustable thermal, adjustable magnetic
Circuit breaker type
NZMH2
Frame
NZM2
Class
Distribution circuit protection
Interrupt rating
85-150 kAIC
Connection
Screw
Number of poles
Three-pole
Feature: NZM2 frame, three-pole construction Enhances protection coordination in 3-phase systems, simplifying panel design and reducing wiring complexity for industrial power distribution. Application: Ideal for distribution panels in manufacturing lines and process plants, enabling reliable fault isolation. Feature: Adjustable thermal and magnetic trip Provides customizable protection curves, improving uptime and reducing nuisance trips in dynamic load profiles. Application: Panels serving motors, drives, and conveyors where protection settings must match start/stop cycles. Feature: 100 A rating with 690 VAC / 750 VDC, 85-150 kAIC interrupt rating Delivers strong short-circuit protection for high fault currents, supporting safer, code-compliant installations. Application: Medium to large industrial circuits with demanding fault current conditions. Feature: Screw connection Ensures secure, field-repair-friendly wiring and long-term reliability. Application: Factory floor or switchgear assemblies requiring robust terminations. Feature: Compact dimensions (4.05 in × 4.13 in × 7.24 in) and 5.17 lb weight Optimizes panel density and reduces enclosure footprint without compromising performance. Application: Space-constrained control cabinets and distribution boards. Feature: NZMH2 family compatibility Supports standardized procurement and spare-part interchangeability, reducing lifecycle costs. Application: Multi-line installations across plants leveraging a common protection strategy.
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FAQs
NZMH2-A100-NA uses a three-pole configuration with screw terminals, designed for secure field wiring in 3-phase distribution panels. The NZM2 frame supports standardized mounting patterns, and the compact footprint helps maximize panel density. Always verify torque specs and enclosure clearances per Eaton guidance to ensure safe, compliant installations.
The device is rated for 100 A with a voltage rating of 690 VAC / 750 VDC and an interrupt rating of 85–150 kAIC. The trip type is adjustable thermal and adjustable magnetic, enabling precise protection coordination across motor loads and feeders in your distribution network.
Yes. NZMH2-A100-NA is specified for both 690 VAC and 750 VDC applications, making it suitable for mixed voltage environments common in industrial power distribution and DC drive interfaces.
This MCCB is ideal for distribution circuit protection in industrial panels, service entrances, and equipment feeders. Its adjustable trip and high interrupt rating support reliable protection for motors, conveyors, pumps, and other demanding loads in manufacturing environments.
The Eaton specification sheet for NZMH2-A100-NA is available as a PDF download from Eaton’s site. This datasheet provides full technical details, wiring diagrams, and installation guidance to support design and procurement decisions.