This variable depth mechanism is used with Square D circuit breakers. It is designed for installation in a custom built control enclosure where main or branch circuit protective devices are required. All circuit breaker operating mechanisms are suitable for either right or left hand flange mounting and are convertible on the job. This standard operating rod is used in 9422R variable depth operating mechanisms. This standard rod is included with each 9422R or 9422AR mechanism as standard. Two of these kits are required for 9422ARR, 9422RR, 9422ART, 9422RT, 9422ATE, 9422TE, 9422ATF or 9422TF mechanisms.