Description

The CHINT NB3LEG-B32 Type A Residual Current Operated Circuit Breaker with Over-current Protection (RCBO) is a sophisticated safety device essential for ensuring electrical safety in residential, commercial, and light industrial applications. This RCBO is rated at 32A and features a B Curve tripping characteristic along with a short-circuit breaking capacity of 6kA, making it ideal for circuits that manage high loads such as industrial equipment, power distribution, and large lighting systems.

Designed to provide crucial protection against electric shock, the NB3LEG-B32 has a rated residual operating current (I∆n) of ≤ 30 mA. This ensures additional safety measures in situations where direct contact with live electrical components may occur, significantly reducing the risk of electrical accidents.

The RCBO incorporates two important tripping classes to enhance its protective capabilities:

• AC class: This feature ensures effective tripping for sinusoidal alternating currents, regardless of whether they are rapidly applied or gradually increase. It provides reliable protection in standard AC electrical systems.
• A class: This ensures tripping for both sinusoidal and pulsed DC residual currents, accommodating modern electronic devices and equipment.

The B Curve (3-5 In) tripping characteristic is specifically designed to protect against overloads and short circuits, particularly for circuits with moderate inrush currents, such as those found in lighting systems and resistive loads. This design protects both people and long cable runs in TN and IT systems, ensuring comprehensive safety across various applications.

The CHINT NB3LEG series includes various models to suit different electrical requirements, including:

• NB3LEG-B06 Type A RCBO: 6A variant for low power applications.
• NB3LEG-B10 Type A RCBO: 10A model suitable for moderate loads.
• NB3LEG-B16 Type A RCBO: 16A variant designed for higher capacity circuits.
• NB3LEG-B20 Type A RCBO: 20A model for more demanding applications.
• NB3LEG-B25 Type A RCBO: 25A option for substantial loads.

Each model in the series guarantees 6kA short-circuit protection and 30mA residual current protection, providing reliable performance and safety across a broad range of installations. With straightforward installation and user-friendly maintenance, the CHINT NB3LEG-B32 RCBO is an essential element of modern electrical systems, ensuring safety and peace of mind for both users and equipment.