differential-4p-40a-300ma-0-3a

The 4P 40A 300mA differential is a 4-pole differential switch designed to protect electrical circuits against 300mA current leakage.

It supports a nominal current of 40 amps and is suitable for the protection of industrial or tertiary installations.

With a sensitivity of 0.3 A, it offers protection against fire risks linked to insulation faults.