Overvoltage Protection

Overvoltage Protection

A circuit which either shuts down the power supply or crowbars the output in the event of an overvoltage condition.

Maintenance bypass

Maintenance bypass

A maintenance bypass is a means of switching the load to the unprotected mains supply, while the UPS equipment is isolated and made safe for servicing or repair.

No Load Shut Down

No Load Shut Down

UPS will shutdown itself when the utility fails and there is no load connected to UPS. This feature is to prolong battery life.

Communication

Communication

UPS can often communicate with computer equipment in order to allow the UPS to trigger a controlled automatic shutdown of the computer. This is usually done when the main has failed and the UPS battery power is close to being used up.