Manufacturing for ICW has been discontinued. As an alternative, please refer to P14D.

The ICW relays are single phase, time delay, power directional relays in size S1 drawout cases. Several different types are available, providing underpower as well as overpower detection and giving a choice be tween line-to-neutral or quadrature (line-to line) polarizing. For applications on 3-phase systems, only one relay is required in most cases because the power flow is usually the same in all three phases.