RCCB
A residual-current device, or Residual Current Circuit Breaker, is a safety device that quickly breaks an electrical circuit to protect equipment and to reduce the risk of serious harm from an electric shock.
| DP | FP | |
| Standard Conformity | IS 12640-1/IEC 61008-1 | |
| Protection | Leakage Current / Ground Fault | |
| Rated Current (In) | 25A, 40A, 63A | |
| Rated Residual Current | 30mA,100mA, 300mA | |
| Rated Voltage | 240V | 415V |
| Tightening Torque | 2Nm | |
| Breaking Capacity | 6kA | |
| Frequency | 50 Hz | |
| Rated Making Breaking Capacity | 500A or 10 In whichever is Greater | |
| Terminal Capacity | 25mm2 | |
| Terminal Protection | IP20 | |
| Operating Temp | -50 to +55℃ | |
| Endurance Mechanical & Electrical Cycles | 4000 | |
| Method of Mounting | Clip on Din Rail (35 x 7.5 mm) | |
RCCB works on the principle of Kirchhoff’s law, which states that the incoming current must be equal to the outgoing current in a circuit. RCCB thus compares the difference in current values between live and neutral wires. Ideally, the current flowing to the circuit from the live wire should be the same as that flowing through the neutral wire. In case of a fault, the current from the neutral wire is reduced, the difference between the two is known as Residual Current. On spotting a Residual Current, the RCCB is triggered to trip off the circuit.
A test circuit included with the Residual Current device ensures that the reliability of RCCB is tested. When the test button is pushed, the current starts to flow through the test circuit. As it creates an imbalance on the neutral coil of the device, the RCCB trips and the supply is disconnected thereby checking RCCB’s reliability.
LARGE TERMINATION
COMBI-HEAD SCREW
EASY DIN EXTRACTION
TEST BUTTON
REAL TRIP INDICATION
FIRE RETARDANT
