Crouzet time delay relays ip50 multifunction 90 x 69 x 175mm crouzet 88827103 this mur3 time delay relay from crouzet is a superbly designed multifunction timer fitted with a screw terminal there is also an option of connecting an external power supply to the control input while other features include the 3 wire pnp sensor control option and led status indicator relay version functions of the timer include operate delay additive operate delay operate and release delay pulse shaper