DB90 Incoming Circuit Breakers

- Jul 21, 2018-

DB90 series are LV subscriber circuit breakers for power up to 36kVA, are used to protect people from indirect contact and equipment from isolation faults.

Selective differential models:

●Ensures total selectivity with high sensitivity of 30mA differential devices installed downstream so that only the start with an isolation fault is turned off;

●Enables installation of a lightning arrester immediately upstream of the circuit breaker without risk of untimely tripping of the latter;

●Enables service quality requirements to be taken into account by certain receivers such as freezer, computer equipment etc;

●Differntial devices with test button;

●Meets EDF requirements;

●Standard: NFC 62411;