3-pole circuit breaker 80A BG1 NZMB1-A80 259078

3-pole power switch 80A is a reliable protection for electrical installations, designed for both construction and industrial applications. The device is characterized by a compact design and flexible mounting, thanks to the possibility of using modular function groups. Equipped with a thermal-magnetic trip unit, it effectively protects cables and devices against overload and short circuit.

Characteristics and Application

This switch is part of the NZM..-A series, known for its versatility and wide range of applications in accordance with IEC standards. It is designed to operate at a rated voltage of 440 V, and its rated continuous current is 80 A. Thanks to a short-circuit capacity of 25 kA at 400 V, it provides effective circuit protection in the event of a failure. The location of the main circuit connections on the front side facilitates cable connection.

Construction and Functionality

The switch has a lever as an actuator and frame terminals for connecting the main conductors. The IP20 degree of protection provides basic protection against contact and the ingress of solid objects. The device's construction is designed for permanent mounting, although there is an option for mounting on a TH DIN rail using additional accessories. It is worth noting the setting range of the overload release (63…80 A) and the short-circuit release (480…800 A), which allows for precise adjustment of parameters to the specifics of the protected installation. Power losses are 16.3 W.

• Versatility: Common accessories with LZM/LN and NZM/N series facilitate the selection and replacement of elements.
• Customization: A wide selection of additional accessories – remote drives, releases, auxiliary contacts – allows for expanding the functionality of the switch.
• Connection flexibility: Various types of connection terminals are available, as well as direct or hinged drives for convenient mounting and operation.
• Short-circuit capacity: Provides effective protection against the effects of short circuits thanks to its high short-circuit breaking capacity (25 kA).
• Thermal protection: Thermal-magnetic trip unit protects against overloads and short circuits, ensuring long-term reliability of the installation.
• Safety: Compliance with IEC standards guarantees safe use and reliable operation of the device.