Measurement

Detection in AC single phase.

Operating principle

Maximum current - Selector in“Position”oposition. When the supply voltage is connected, if the measure current is less than the pre-set value, the relay operates instantaneously. When the measure current exceeds the pre-set value, the relay releases after the time pre-set in the time control, and remains so until the measure current goes below the value pre-set in the hysteresis control. When supply voltage is connected, if the measure current exceeds the pre-set value, the relay operates instantaneously and remains so for a time equal to the one adjusted in the time control and releases afterwards.
Minimum current - Selector in“Negation”position. When the supply voltage is connected, if the measure current exceeds the pre-set value, the relay operates instantaneously. When the measure current goes below the value pre-set in the hysteresis control, the relay releases after the time pre-set in the time contol, and remains so until the current exceeds the pre-set value. When the supply voltage is connected,if the measure current is less than the value pre-set in the hysteresis control, the relay operates instantaneously and remains so for a time equal than the one pre-set in the time control. If whithin this interval of time the measure current exceeds the pre-set value, the relay remains operated.

Relay Inversion

By linking the terminals 6-7 (PAAA/B), Y1-Y3 (DAAA/B) or Y2-Z2 (SAAA/B), the relay reverses the contacts position.

Leds indication

Power on: Green
Relay on: Red

Currents greater than 5A

When currents greater than 5 A are to be controlled, one current transformer ratio X/5, class 1 must be used, where X is the closest value to the current to be controlled.

Hysteresis

Adjustable between 3% and 30% of the detection pre-set value.

Timing

Delay on detection adjustable from 0 to 30 s.