ABB’s electronic releases of PR series offer a

variety of programmable protection functions for

all mentioned circuit breaker types:

• Overload protection L

• Selective short circuit protection S

• Instantaneous short circuit protection I

• Earthfault protection G

Further options available (but not limited to):

• Zone selectivity

• Dual protection settings

• Directional short circuit protection

• Reverse power

• Under-/overvoltage protection

• Annunciation of measured values, alarms

• Maintenance data

• Integration into a plant wide process

control system

In order to satisfy other incomer requirements

there are further options:

• Load break switches

• Moulded case circuit breakers (MCCBs)