They provide remote CHARGE, CLOSE & OPEN operation of DS-type circuit breakers with either manual or electric mechanisms - up to 300 ft away from equipment. They are especially applicable for remote operation in hard-to-reach areas. The lightweight, portable switches use magnetic latching mechanisms that do not require any breaker modification.
The remote switch actuators are crucial in potentially dangerous electrical operations as they help eliminate possibility of injury or death resulting from an arc flash. RSA-12A's manufacturer develops racking and switching systems for most all OEM-produced circuit breakers and switches.