ZB5AL4 is a range of 3 position spring return short-body selector switches manufactured by Schneider Electric. The switches have category 4 abrasion-resistant polyester and polycarbonate actuators, and their operation is maintained by a positive input locking device. They are UL, CSA and IEC approved, and IP67 protected against dust and water ingress. Features include tripped emergency-stop actuator, yellow position indicator and a wide range of contact blocks.