Overview
The Klockner Moeller NZM6B-160 circuit breaker is a robust molded case electrical protection device designed for industrial and commercial power distribution. This NZM6B-160/ZM6-125-CNA unit combines thermal and magnetic (instantaneous) trip functionality for comprehensive short-circuit and overload protection in three-phase systems.
Key Features
- 125 ampere rated current at 600V AC
- Molded case construction for durability and reliability
- Thermal trip range: 100–125A for overload protection
- Instantaneous (magnetic) trip range: 1000–2000A for short-circuit response
- Three-pole design for three-phase circuits
- Industrial-grade performance in harsh automation and control environments
Technical Specifications
- Rated Current: 125A
- Voltage Rating: 600V AC
- Poles: 3 (three-phase)
- Trip Type: Thermal-Magnetic (TM)
- Thermal Trip Range: 100–125A
- Instantaneous Trip Range: 1000–2000A
- Frame Size: 160 (NZM6B-160)
- Horsepower Rating: 125 HP
- Case Type: Molded case
Typical Applications
Circuit breakers in the Klockner Moeller NZM6B series are widely used in:
- Industrial automation control systems
- Motor control centers (MCCs)
- Power distribution panels
- Manufacturing and facility electrical protection
- Three-phase motor circuits up to 125 HP
- Heavy-duty process equipment and machinery
Compatibility & Replacements
Compatible With
- Standard industrial enclosures and control panels
- Three-phase 600V AC distribution systems
- Motor control circuits and variable frequency drives
- Industrial automation equipment and machinery
- Power distribution and metering systems
Replaces / Drop-In Replacement For
The NZM6B-160/ZM6-125-CNA directly replaces earlier versions of the NZM6B 125A 600V breaker. For other potential cross-references, verify compatibility with your system integrator before ordering.
Works With
- Industrial control systems using 600V three-phase power
- Motor starters and soft-start controllers
- Power monitoring and protection relays
- Standard molded-case breaker enclosures
- Industrial electrical distribution infrastructure
