Miniature Circuit Breaker is a device that ensures safety and prevents electrical hazards in the appliances or devices. MCB is an automatic switch. Construction Miniature Circuit Breakers have precisely formed molded case & cover of flame-retardant high strength thermo-plastic material having high melting point, low water absorption, high dielectric strength and temperature withstand. The Switching Mechanism is independent, manual and trip free, i.e., the breaker trips internally even if the operating knob is held in ON position. The Contact Mechanism comprises of fixed & moving contacts specially designed for reliability, long life and anti-weld properties. The Arc Extinguishing Device comprises of 12 plates arc chute. The arc under the influence of the magnetic field and arc guide is moved into the arc chute where it is rapidly split and quenched. The tripping mechanism is thermal magnetic type. Thermal Operation The thermal operation provides protection from moderate overload. Under overload condition, a thermo-metallic element (bimetallic strip) deflects until it operates a latching mechanism allow the main contacts to open. Magnetic Operation In magnetic operation, large overloads or short circuit current actuates a solenoid causing a plunger to strike the latching mechanism rapidly opening the main contacts.
Range: 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A ,63A
Curve : B/C
Type: Single Pole,Single Pole & Neutral,Double Pole,Triple Pole,Triple Pole & Neutral & Four Pole
Breaking Capacity: 10kA
Rating voltage -240V/415V AC
RR Switchgear range of compact On Load Changeover Switches are manually front operated four pole switches which helps to save the space in panel boards resulting in low costing of the same. These comprise of two On Load Switch Disconnectors, which are coupled together and are mechanically interlocked with common ou tgoing . These are used in low voltage distribution circuits and motor circuits and at places where continuity of supply is necessary for switching from main supply to an alternate source of supply and vice ver sa. All On Load Changeover Switches are capable of making, carrying and breaking currents under normal circuit conditions, which may include operating under overload conditions and also carrying currents under specified abnormal circuit conditions such as short circuit for a specified time.
Range: 25A, 40A, 63A
Type: Double Pole & Four Pole
Rating voltage: 240V/415V AC
RR Switchgear range of Isolators are switch disconnectors with independent manual operation, capable of making, carrying and breaking currents under normal circuit conditions, which may include operating under overload conditions. They also carry currents under specified abnormal circuit condition such as those of short circuit for a specified time.
Range: 40A, 63A, 100A
Type: Double Pole, Triple Pole & Four Pole
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 ongoing electric shock. Working Principle 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 differential between the two 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 supply is disconnected thereby checking RCCB's reliability.
Range: 25A to 63A
Type: Double Pole, Four Pole
Operating current: 30mA, 100mA & 300mA
Breaking Capacity: 6kA