

The Lauritz Knudsen (Formerly L&T Switchgear Business) 40A Three Pole MCB is designed to deliver dependable protection for three-phase circuits in commercial and industrial applications. Its 10kA breaking capacity ensures safe disconnection during short-circuit events, while the precision-engineered contacts provide fast, accurate trip performance.This 40A TP MCB features a C-curve characteristic suitable for inductive and mixed-load circuits. It conforms to IS/IEC 60898 and IS/IEC 60947-2 standards, ensuring high electrical safety and long-term reliability. The advanced current-limiting hammer trip mechanism minimizes thermal and mechanical stress on wiring, increasing the lifespan of downstream equipment.The device includes true contact indication, bi-connect terminals on both sides, and a label holder for easy identification. Its low watt-loss design ensures energy efficiency while maintaining stable operation under continuous load.Meta Summary: Buy the LK 40A 3P MCB (10kA) BB30400C online from Maheshwari Distributors – genuine LK switchgear with fast, reliable delivery across India.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
– Received the wrong item.
– Item arrived not as expected (ie. damaged packaging).
– Item had defects.
– Over delivery time.
– The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.
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