Miniature circuit breaker, flame-retardant housing PA66 4P automatic for commercial buildings AC 400 V 40 A

General Description

The miniature circuit breaker is designed for use in commercial buildings, providing reliable protection against short circuits and overloads. Made of PA66 nylon, it offers exceptional flame-retardant safety performance.

This circuit breaker is equipped with an electromagnetic tripping mechanism that ensures stable current interruption in the event of a short circuit, guaranteeing safe operation.

Furthermore, it is capable of quickly extinguishing electrical arcs, thus minimizing the risk of fire.

Technical Specifications

Item Type: Miniature Circuit Breaker

Material: PA66

Rated Insulation Voltage (Ui): 500 VAC Pollution Level: 3

Impulse Withstand Voltage (Uimp): 6 kV Magnetic Tripping: Curve B: (3-5)ln, Curve C: (5-10)ln, Curve D: (10-14)ln Thermal Trip Reference Setting:

Temperature: 30℃ Utilization category: A, compliant with IEC60898-1 Current limiting level: 3

Single-pole breaking capacity (Icn1): Icn1=Icn(6000A)

Protection class (IEC60529): IP20 Installed in distribution box: IP40, Insulation class: II Overvoltage category (IEC60364): IV Damp heat resistance (IEC60068-1):

Class 2 (at 55°C, 95% relative humidity)

Wiring method: top entry and bottom exit, bottom entry and top exit

Electrical life: 10,000 cycles

Mechanical life: 20,000 cycles times

Ambient temperature: -35℃ to 70℃

Storage environment temperature: -40℃ to 85℃

Voltage: 400V

Installation

The circuit breaker is designed with a double-clip locking structure, allowing for easy installation. It can be mounted horizontally and freely disassembled or assembled, even in confined spaces.

Application

This circuit breaker is mainly used for protecting power distribution in various types of buildings, including residential, commercial, and industrial. It is essential to follow safety instructions during installation and use, preferably under the guidance of professionals.

Other information

Package list: 1 x miniature circuit breaker