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Eaton Cutler-Hammer NZM Series NZMB1-A25-NA

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NZMB1-A25-NA

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The NZMB1-A25-NA from Eaton Cutler-Hammer is a molded case circuit breaker belonging to the NZM series. It operates with a rated current of 25 amperes and is designed to handle up to 440 V AC or 480Y/277 V AC. This circuit breaker features a thermo-magnetic release mechanism for effective trip operation and weighs approximately 2.306 lbs.

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Technical specifications for NZMB1-A25-NA

ManufacturerEaton Cutler-Hammer
Product TypeMolded Case Circuit Breaker
Product LineNZM Series
Part NumberNZMB1-A25-NA
Rated Current25 A
Number of Poles3 Poles
Rated Operational Voltage440 V AC / 480Y/277 V AC
Rated Insulation Voltage690 V AC
Trip Unit TypeThermo-magnetic release
Overload Release Current Setting20 A – 25 A
Short-Circuit Rating at 480Y/277V25 kAIC
Handle TypeRocker lever
Terminal TypeBox / Frame Clamp Terminals
Relative Humidity5 to 95% (Non-Condensing)
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The NZMB1-A25-NA model from Eaton Cutler-Hammer is part of the NZM series of molded case circuit breakers. This unit is capable of handling a rated current of 25 A, making it suitable for various applications. It operates effectively at an operational voltage of 440 V AC and can also be used at 480Y/277 V AC. With an insulation voltage rated at 690 V AC, this circuit breaker ensures reliable performance under different operating conditions.

Weighing in at 2.306 lbs, the NZMB1-A25-NA also incorporates a thermo-magnetic release trip unit type. This design enhances its ability to respond to both overload and short-circuit conditions, with an adjustable overload release current setting that ranges from 20 A to 25 A. Furthermore, it is rated with a short-circuit withstand capacity of 25 kAIC at 480Y/277V, providing confidence in its protective capabilities.

The breaker utilizes a rocker lever handle, allowing operators to easily switch it on or off. For reliable connections, it features box and frame clamp terminal types. Additionally, it is engineered to perform in environments with relative humidity levels spanning from 5% to 95%, provided that conditions remain non-condensing. This makes the NZMB1-A25-NA a robust solution for a variety of industrial settings.