PGM35 Rack PGM 35 H&B Contronic

PGM35 Rack Manufacturers Manufacturers ABB, Hartmann & Braun Model(s)

ABB H&B Contronic, ABB H&B Contronic P

Estimated Shipping Size Dimensions: 12.0" x 7.0" x 19.0" (30.5 cm x 17.8 cm x 48.3 cm)

Weight: 8 lbs 3.0 oz (3.7kg ) PGM 35

It is possible to test the opening solenoid by means of the SACE TT1 device. A positive test will trip

the breaker.

Setting the adjustment parameters of the protection functions is carried out directly from the front of

the releases by means of dip-switches and, for PR212/P, remotely, too, thanks to the use of the

SACE PR212/D(1) dialogue units, available with Modbus or LON communication protocols.

For four-pole Tmax T2 with PR221DS trip unit, the protection of the neutral is set to 100% of the

phase protection setting.

For four-pole SACE Isomax S circuit breakers with PR211/P trip unit, the protection of the neutral is

set to 50% of the phase protection setting. Ask ABB for the 100% version.

For four-pole SACE Isomax S circuit breakers with PR212/P trip unit, the protection of the neutral

can be set to 100% or 50% of the phase protection setting (by means of dip-switches on the front of

the trip unit).

These protection trip units consist of the current transformers, the SACE PR221DS or PR211/P or

PR212/P protection unit and an opening solenoid, with demagnetization which acts directly on the

operating mechanism unit and is mounted in the right-hand slot for T2 or in the trip unit case for Isomax.

The transformers are housed inside the trip unit box and supply the energy required for correct

operation of the protection and the signal needed to detect the current. They are available with

primary continuous rating current as indicated in the table.

When the protection trips, the circuit breaker opens by means of the opening solenoid, which changes

over a bell alarm contact to signal trip unit tripped. Resetting the signal is mechanical and takes place

when the circuit breaker operating lever is reset.