Residual Current Circuit Breakers (RCCB) is a sensing device and essential safety devices designed to instantly disconnect a circuit upon detecting current leakage. It can automatically measure the amount of current and disconnect the circuit when the current surpasses the rated sensitivity. 

RCCB provide robust protection against electrocution and electric shocks caused by accidental contact with exposed wires. 

Functional Descriptions : 

RCCB operates on the principle of detecting and responding to imbalances in electrical currents. In a balanced circuit, where the current flowing ‘IN’ is equal to the current flowing ‘OUT’, there is no residual current. However, if there’s an imbalance, indicating leakage to the ground or an unintended path, the RCCB detects the difference in currents. Upon sensing such a discrepancy, the RCCB rapidly disconnects the circuit, preventing potential electric shocks or fires. This safety mechanism makes RCCBs crucial components in electrical systems, enhancing protection against electrical hazards. 

Features : 

• Conforms to Standards IEC 60068-2 

• Ranges : 16A to 63A 

• Sensitivity (IDn) : 30mA, 100mA & 300mA 

• Execution : 2P & 4P 

• Response Time (Instantaneous) : <40 ms  

• High Short-circuit current withstand capacity 10kA. 
• Automatically measures and disconnect the circuit when earth fault/ leakage current occurs and exceeds the  rated sensitivity. 
• Dual termination possible for both Cable and Plug-in type Busbar. 

• Incorporates a filtering device for prevention of naissance tripping due to transient voltage. 

• Independent of Power supply and Line voltage and also free from external voltage fluctuation. 

• Type tested from UL, KEMA, CPRI etc. 

• Certification & Markings – UL, CSA, CE, CCC, ISI etc. 

• High Terminal Capacity with Deep Serrations 

• Low Power Consumption/Low Watt Loss 

• High Tech Arc Blower 

• IP20 Protection Class 

• Padlocking Facility