11WRIA - 11 pin plug in current sensing relay AC current only.

11WRIA/I - 11 pin plug in inverse acting current sensing relay AC current only.

11WRID -11 pin plug in current sensing relay DC current only.

11WRID/I - 11 pin plug in inverse acting current sensing relay DC current only.

11WRIA5 - 11 pin plug in current sensing relay AC current only. 11WRID5 -11 pin plug in current sensing relay DC current only. Suffix A - With delay to energise on a rising current. Suffix C - With delay to de-energise on a falling current.

CURRENT CONTROL RELAYS WITH INITIAL START UP DELAY & DELAY ON TRIPPING

The YWRI and YWRI/I current relays can be direcly connected from 5mA up to 10 Amps. (Above 10 Amps a CT must be used) and are suitable for AC or DC current monitoring. These current relays have 3 independently adjustable 0.1-10 secs time delays. Initial start up delay timer, activated by the connection of the auxiliary supply, therefore if a control circuit is going to be permanently live this time delay will only ever be active once, a delay on rising current when the monitored current rises above the set level as selected by the front potentiometer and a delay on falling current, when the monitored current falls below the set level plus the hysteresis.

 

Current control for rising current link terminals Y2 & B1. The output relay energises when the monitored current signal rises above the set level selected via the front potentiometer. The output relay de-energises when the monitored current falls below the set level less the hysteresis adjustable via a second potentiometer, 5 to 50% against the set level. On initial start up (connection of the auxiliary supply), the output relay is inhibited for a time period adjustable between 0.1-10 secs, this allows the measuring circuit to correctly determine the level of the monitored current signal before operation.
Current control for falling current link terminals Y1 & Y2. The output relay de-energises when the monitored current signal rises above the set level selected via the front potentiometer. The output relay re-energises when the monitored current falls below the set level less the hysteresis adjustable via a second potentiometer, 5 to 50% against the set level. On initial start up (connection of the auxiliary supply), the output relay will energise for a time period adjustable between 0.1-10 secs, irrespective of the level of the monitored current signal.

YWRIT - Din rail 1-20mA adjustable single setpoint trip amp.

11WRIT -11 pin plug in 1 -20mA adjustable single setpoint trip amp.

YWRI2T - Din rail 1 -20mA two adjustable setpoint trip amp 2 x SPCO outputs "Low" & "High"