Dual setpoint 0.1-10V DC relay. Providing two separately controllable trip levels. With R1 selected as the "High" level and R2 as the "Low" level. When the monitored signal voltage rises above R2 set level R2 relay will energise. If the voltage continues to rise above R1 set level, relay R1 will energise. Conversely as the monitored voltagefalls R1 will de-energise, if the fall continues R2 will de-energise. The unit has a built in fixed hysteresis of 2% at each setpoint to avoid relay "chatter".

Din rail mounted AC self powered voltage control relays (no separate auxiliary supply required) for the combined monitoring of both over and under voltage levels. Available only in a din rail package with nominal voltages from 24VAC to 440VAC, an option adjustable time delay 0.1 to 10 sees "T" can be specified as a delay on tripping timer.

Din rail mounted or 8/11 pin plug in DC self powered voltage control relays (no separate auxiliary supply required), available both SPCO and DPCO output. The output relay energises when the voltage rises above the set level controlled via a potentiometer adjustable -20% to +30% of the nominal voltage. The output relay will then de-energise when the voltage falls below the set level less a hysteresis adjustable via a second potentiometer 5 to 25% of the set level. If the total supply is lost de- energisation will also occur. A green LED indicates a voltage is present and a red LED indicates that the output relay is energised.

Voltage control relays suitable for both AC and DC voltage control, available in both din rail and 11 pin plug in. The standard units have three selectable via terminal taps voltage ranges from 0.1 to 400VDC (0.1 to 283VAC). Also available only in the din rail housing are dedicated range "high voltage" up to 1500VDC control units which are most suitable for "railway traction voltage" monitoring