Description

The CHINT NB3LEG-B10 Type A Residual Current Operated Circuit Breaker with Over-current Protection (RCBO) is a dependable and compact device designed to protect electrical circuits and ensure personal safety in residential, commercial, and light industrial environments. With a rated current of 10A, B Curve tripping characteristic, and a 6kA short-circuit breaking capacity, this RCBO is ideal for circuits with moderate loads, such as lighting systems and small electrical appliances.

This RCBO offers a rated residual operating current (I∆n) of ≤ 30 mA, providing additional protection against electric shock in case of direct contact with live electrical parts, making it an essential component for personal safety.

The device is equipped with two tripping classes for enhanced versatility:

• AC class, ensuring protection for sinusoidal, alternating currents, whether the current is applied rapidly or gradually increases, making it suitable for general AC systems.
• A class, which extends protection to include pulsed DC residual currents, ensuring comprehensive safety in circuits with more complex electronic loads, such as modern home appliances or office equipment.

The B Curve (3-5 In) tripping characteristic is tailored for circuits with low inrush currents, such as lighting and other resistive loads, providing efficient protection against overloads and short circuits. This model is ideal for use in TN and IT systems, where it ensures protection for people and long cable runs.

The CHINT NB3LEG series offers a range of current ratings and characteristics to suit various applications:

• NB3LEG-B06 Type A RCBO: 6A version for circuits with lower current needs, such as small lighting or electronic devices.
• NB3LEG-B16 Type A RCBO: 16A variant with the same B Curve, suited for medium load circuits.
• NB3LEG-B20 Type A RCBO: 20A model with a C Curve (5-10 In), designed for circuits with inductive and resistive loads like motors.

Each RCBO in the NB3LEG series offers 6kA short-circuit protection and 30mA residual current protection, ensuring robust performance and safety in a wide range of electrical installations. The device is designed for easy installation, making it a versatile and essential component for modern electrical safety systems.