Worldwide Distribution | Approved to ISO9001 Standards

Tel: +44 (0) 1403 255522 | Email: sales@mikenworldwide.com

CHINT – Residual Current Operated Circuit Breaker with Over-current Protection- NB3LEG-B20

The CHINT NB3LEG-B20 Type A RCBO (1P+N, B Curve, 20A) is an essential safety device designed to protect against overloads, short circuits, and direct contact, featuring a 6kA short-circuit capacity and 30mA residual current rating. Ideal for moderate-load circuits in residential and commercial settings, this model provides effective protection in TN and IT systems. Additional variants in the series include 6A, 10A, 16A, 25A, and 32A options for diverse applications.

SKU: NB3LEG-B20 Categories: ,

Description

The CHINT NB3LEG-B20 Type A Residual Current Operated Circuit Breaker with Over-current Protection (RCBO) is a crucial safety device designed for protecting electrical circuits while ensuring the safety of users in residential, commercial, and light industrial settings. This model features a rated current of 20A, a B Curve tripping characteristic, and a short-circuit breaking capacity of 6kA, making it ideal for circuits handling moderate loads such as lighting fixtures, power outlets, and small machinery.

With a rated residual operating current (I∆n) of ≤ 30 mA, this RCBO provides essential protection against electric shock in the event of direct contact with live electrical components. This feature is particularly important in environments where human safety is a priority.

The device incorporates two key tripping classes for enhanced versatility:

  • AC class, which guarantees effective tripping for sinusoidal, alternating currents, regardless of whether they are rapidly applied or gradually increase. This ensures compatibility with standard AC electrical systems.
  • A class, which ensures protection against both sinusoidal and pulsed DC residual currents, making it suitable for circuits with modern electronic loads that may include sensitive equipment.

The B Curve (3-5 In) tripping characteristic is specifically designed to provide protection for circuits with low inrush currents, such as lighting systems and resistive loads. This design offers effective control against overloads and short circuits, thereby safeguarding both individuals and long cable runs in TN and IT systems.

The CHINT NB3LEG series includes a variety of models to meet diverse electrical requirements:

  • NB3LEG-B06 Type A RCBO: 6A version suitable for lower power needs.
  • NB3LEG-B10 Type A RCBO: 10A variant for moderate loads.
  • NB3LEG-B16 Type A RCBO: 16A model for higher capacity circuits.
  • NB3LEG-B25 Type A RCBO: 25A variant for even more demanding applications.
  • NB3LEG-B32 Type A RCBO: 32A model for high-power circuits.

Each model in the NB3LEG series offers 6kA short-circuit protection and 30mA residual current protection, ensuring reliable performance and safety across various applications. Designed for straightforward installation, these RCBOs are vital components for maintaining electrical safety in any modern installation.

Additional information

SKU

NB3LEG, B20

Reviews

There are no reviews yet.

Be the first to review “CHINT – Residual Current Operated Circuit Breaker with Over-current Protection- NB3LEG-B20”

Your email address will not be published. Required fields are marked *

© Miken Electronics Worldwide Ltd 2024. All Rights Reserved.