3-pole circuit breaker 160A motor protection NZMN2-M160 265724

3-Pole 160A Power Circuit Breaker – Reliable Installation Protection

This 3-pole power circuit breaker with a rated current of 160A, from the NZMN2-M160 series, is a key element ensuring safety and reliability in electrical installations. Designed to protect motors, it can also be used to protect circuits against overloads and short circuits. Its robust construction and high short-circuit breaking capacity (up to 35 kA at 400V AC) guarantee effective protection for both installers and end-users.

Product Features and Application

The NZMN2-M160 circuit breaker features a thermal-magnetic tripping method, meaning it reacts to both overloads (prolonged overcurrent) and short circuits (sudden current surge). This provides comprehensive protection for the electrical installation. The rated continuous current of 160A allows for safe circuit loading, and the overload trip adjustment range (125-160A) allows for precise adaptation to specific application needs. This circuit breaker is used to protect motors, electrical switchboards, and other devices requiring reliable protection against the effects of malfunction.

* Wide range of applications: ideal for protecting motors, switchboards and other devices.

* Thermal-magnetic tripping method: provides protection against overloads and short circuits.

* High short-circuit breaking capacity: up to 35 kA at 400V AC guarantees effective protection in the event of a failure.

* Robust construction: ensures durability and reliable operation.

* Fixed mounting: designed for installation in switchboards and control cabinets.

* Suitable for working in difficult conditions: thanks to the IP20 protection class, it is resistant to dust and moisture.

Advantages and Technical Parameters

The NZMN2-M160 circuit breaker is distinguished not only by its high technical parameters but also by practical advantages for installers. Screw connection of the main contacts facilitates installation and connection of wires, and compact dimensions (105 mm width, 184 mm height and 149 mm depth) allow for efficient use of space in the switchboard. The rated operating power for AC-3 is as high as 90 kW at 400V and 45 kW at 230V, which proves its high efficiency. Additionally, the lack of phase failure sensitivity increases the reliability of operation in case of power supply problems. Power losses amount to 38.4 W, which affects the energy efficiency of the system.

The circuit breaker is characterized by a rated continuous current of 160A, a short-circuit breaking capacity of up to 35 kA at a voltage of 400V AC, an overload trip adjustment range of 125 to 160A and a short-circuit trip adjustment range of 1280 to 2240A. The rated operating voltage is in the range of 690 to 690V, and the rated operating power for AC-3 is 90 kW at a voltage of 400V and 45 kW at a voltage of 230V, respectively. The degree of protection is IP20, and the tripping method is thermal-magnetic.

The NZM series circuit breakers offer a flexible connection system and the possibility of mounting additional functional accessories, allowing them to be adapted to the individual needs of each application.