Controls & Switchgears offers Air Circuit Breakers (ACB), conforming to International Standards, are available from 400A to 6400A, 3 pole as well as 4 pole, in all possible versions â€“ fixed or drawout, hand operated or motorised. The 4 pole incorporate true 4th pole â€“ rating and contacts same as the main poles but with advance closing and delayed opening mechanism to avoid any switching surges and remnant transients. They offer accurate and reliable protection against faults with 2 types of releases, thermal â€“ magnetic or self - powered, 8 â€“ bit microprocessor based, true RMS sensing Release. Protections available are over-current, short-circuit, instantaneous and earth fault protection. Individual fault indication is available along with facility to disable any of the protection. Accessories can be fitted as per requirement â€“ shunt, under voltage release, position and indication micro-switch, etc. Special accessories are capacitor trip, mechanical inter-lock kit, different busbar termination kit, etc.
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