The BNC420 is a protective dust cover accessory specifically designed for use with the BN75W large capacity terminal block. Constructed from durable polycarbonate, this cover provides protection against dust, debris, and accidental contact, enhancing the safety and reliability of the terminal connections. It is supplied in a standard length of 1 meter and has an approximate weight of 72g. The BNC420 is ideal for maintaining the integrity of wiring in industrial control panels and other environments where the BN75W terminal block is deployed.