MCB

Polycab miniature circuit breakers operational safety greater convenience

Miniature Circuit Breakers are electromechanical devices which protect an electrical circuit from an overcurrent. The overcurrent, in an electrical circuit, may result from short circuit, overload or faulty design. A MCB is a better alternative to a fuse since it does not require replacement, once an overload is detected. Unlike fuse, a MCB can be easily reset and thus offers improved operational safety and greater convenience without incurring large operating cost.

On/Off Indication

Red & Green flag indication provided below the knob gives indication of positive electrical ON/OFF contact status irrespective of mounting or knob position even from a
distance.

13 Plates Arc Chamber

Quick & Efficient Arc Quenching

Low Power Loss

Power Loss values upto 70% lesser than specified by IEC/IS, making Poly shied MCB one of the most energy efficient MCB.

Easy MCB Extraction

No dismantling of busbar to remove MCB – Unique mounting assembly allows to remove single MCB from shorting busbar without disturbing other MCBs.

Energy Limiting Class 3

Low let- through energy I T under short-circuit conditions ensures longer life of contacts and reduces thermal stresses in the distribution circuit.

Air Flow Channel

Reduces Body Temperature and keeping it cool to provide better performance

Neutral Pole Protected

Neutral pole is also protected against short circuit. so even if short circuit occurs at the
neutral side, appliance or connected device will be protected.