Miniature circuit breaker, PA66 flame-resistant case, 4P automatic for commercial buildings, AC 400 V 20 A

General Description

This miniature circuit breaker is designed for use in commercial buildings, providing reliable protection against short circuits and overloads. Made of PA66 nylon, it offers excellent flame-retardant performance, ensuring safe operation. This circuit breaker is equipped with an electromagnetic tripping mechanism that stably interrupts the current in the event of a short circuit, as well as a rapid arc-quenching capability to prevent electrical fires.

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, C: (5-10)ln, D: (10-14)ln
• Thermal Trip Reference Setting: Temperature: 30℃
• Utilization Category: A, compliant with standard 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
• Surge category (IEC60364): IV
• Moisture heat resistance (IEC60068-1): Class 2 (at 55°C, 95% relative humidity)
• Wiring method: top entry/bottom exit, bottom entry/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 locking clip structure, allowing for easy installation. It can be installed horizontally and freely disassembled or assembled, even in confined spaces.

Application

This circuit breaker is widely used for protecting power distribution in various types of buildings, including residential, commercial, and industrial. It is essential to follow safety instructions when using it and to have it installed under the guidance of professionals.

Other information

• Package list: 1 x miniature circuit breaker