APRO ELCB 4 Pole 40A 63A 100A – SIRIM

Description

APRO 4P Earth Leakage Circuit Breaker 40A 63A 100A

Protect your 3-phase system with the SIRIM Approved APRO 4 Pole ELCB (Earth Leakage Circuit Breaker). This current-operated device, also known as a Residual Current Circuit Breaker (RCCB), provides essential protection against electrical shock hazards and fire by swiftly detecting and interrupting earth leakage currents.

Available in a range of current ratings—40A, 63A, and 100A—it’s designed for use in AC 240V to 415V electrical installations, making it ideal for commercial, industrial, or residential properties with 3-phase supply. The 4-Pole configuration ensures complete isolation of the circuit (three phases and neutral) upon tripping. Key features include reliable electromechanical function, accurate leakage current sensing, a built-in filter to prevent nuisance tripping, and a test button for routine safety checks. Choose the correct amp rating and sensitivity ($30mA,100mA,300mA$ depending on the specific model) for maximum safety compliance.

Q: What is a 4 pole ELCB used for?

A: A 4 pole ELCB is used to provide earth leakage and electric shock protection in a three-phase (3P + Neutral) electrical system by monitoring the current in all four conductors and tripping if an imbalance (leakage) is detected.

Q: What is the difference between ELCB and RCCB 4 pole?

A: The modern current-operated ELCB is essentially a Residual Current Circuit Breaker (RCCB). While ELCB is an older, sometimes confusing term (referring to both voltage and current types), the APRO is a current-sensing RCCB that protects against earth faults.

Q: Which ELCB ampere is suitable for home?

A: For a main switch in a typical large house or premise with a 3-phase supply, common ratings are 40A, 63A, or 100A. The specific rating should match your installation’s calculated maximum load and main breaker.

SPECIFICATION