Differences of 3 types of power cutting equipment popularly used in electrical systems

Summary of the three types of power cutting devices used in electrical systems to prevent short circuit, overlight and suction light hazards, detailed below

1.MCCB (Molded Case Circuit Breaker)

It is a circuit breaker designed to prevent damage to equipment and wires.

• Protection: Overload and Short Circuit

• Highlights: Supports very high electricity, mainly in industrial facilities, or controls the main light panels of large buildings.

• Working mechanism: Use thermal and magnetic fields to cut the circuit

2.ELCB (Earth Leakage Circuit Breaker)

As an early electrical leak protection device, it is now beginning to be replaced by newer technologies.

• Prevent: Electricity Leakage to Prevent People Suction Lights

• Highlights: Available in both homes and factories. There is usually a "Test" button to press to test the working state.

• Mechanism of operation: Detect the voltage or current leaking out of the system.

3.RCCB (Residual Current Circuit Breaker)

It is the most popular leakage power cutting device today for shelters.

• Prevent: Leak or Residual Current, which prevents people from being electrocuted.

• Pros: Very sensitive (Sensitivity), can detect even small leakage lights and cut power instantly.

• Mechanism of operation: Detect the balance of current inflow (Line) and outflow (Neutral). If not equal, it indicates that there is a leakage. The machine will cut the circuit immediately. Caution: * RCCB and ELCB emphasize preventing "people" from suction lights, but most of them are not overproof (must be used in tandem with an ordinary breaker, or use an RCBO model that combines capabilities).

• MCCB focuses on preventing "property / wires" from burning, but not fire-proof.