Differential switch 30 mA
4P - NL1 type

USE

NL1 switches, 30 mA sensitivity, are usd to protect people from current leakage on circuits which are protected elsewhere against overcurrents or short-circuits by magneto-thermal switches.
Provokes shut-down of phase and neutral (1P+N) or all phases (4P) in the event of differential current detected over 300 mA.
Triggered in 40 milliseconds following a fault current detected at 30 mA.
- Type A, they detect AC and DC currents and are used for powerful electric circuits: hotplates, resistances, radiators).
- Type AC, they detect only AC currents and are used on electric supply for all types of appliances .
Domestic, agricultural, tertiary sector, industrial uses.