PBR20 Low voltage cell

ATEX LOW VOLTAGE
SWICHGEAR PBR20

Explosion-proof switchgear, Ex d I certified, low voltage up to 1100V 50/60Hz and two protected outputs adjustable up to 400A.

It consists of a single compartment closed by a bolted door and the electrical equipment consists mainly of the following elements:

Continuous insulation control with two warning levels and one trigger level, with the possibility of testing, continuous reading of insulation resistance and optical fault indication.
Two 400A circuit breakers with thermal magnetic protection.
Optionally, two monitoring circuits with open contactor isolation. "lockout".
Un relé “localizador de defecto”.
A transformer high temperature protection relay in connection with thermal sensors on the low voltage coils.
Signalling of consumption and defects.
An overvoltage limiter.
Electrical interlocking circuit with high voltage cell

It can be mounted on a transformer directly or independently of it, by means of an input box.