Battery-powered remote switch kit for power transformer switching operations introduced by CBS ArcSafe

    Aug. 12, 2025
    Closed-door operations includes an RSA-216 remote switch actuator, an RSO-IV-M18 remote switch operator, and exterior-mounted auxiliary enclosure.
    The CBS ArcSafe RSK-PMT remote switch kit (RSK) is for pad-mounted transformers (PMT) that provides arc flash safety for open- and closed-door transformer switching operations.

    Summary points:

    • Updated RSK-PMT kit enables safe open- and closed-door pad-mounted transformer switching from outside the arc flash boundary.
    • Two-position and customizable four-position RSA-216 actuators fit tight spaces and accommodate diverse transformer configurations.
    • RSO-IV-M18 power unit with 300-foot radio remote range, tactile feedback, and visual strobe for safe, efficient field use.

    DENTON, Texas – CBS ArcSafe LLC in Denton, Texas, is introducing an update for the RSK-PMT remote switch kit (RSK) for pad-mounted transformers (PMT) that provides arc flash safety for open- and closed-door transformer switching operations.

    Equipment for closed-door operations includes an RSA-216 remote switch actuator, an RSO-IV-M18 remote switch operator with a 12-foot cable or optional radio remote, an exterior-mounted auxiliary enclosure with an interior alignment tube, and a 2-inch fiberglass hot stick for interfacing the switch adapter, and RSA-216 actuator handle.

    The RSK-PMT capability expansion includes open-door switching that allow technicians to operate 2-position PMT switches from a safe distance. The portable system capitalizes on a compact RSA-216 2-position actuator to accommodate installations with tight spaces.

    The design makes it easy to align the actuator with the racking switch and mount it with magnets. After connecting the RSO-IV-M18 remote switch operator, technicians can open and close the transformer while remaining safely outside the arc flash boundary.

    90-degree rotations

    An updated RSA-216 4-position actuator supports loop feed transformers. The device accommodates four 90-degree rotations and can be configured to travel beyond 90 degrees by any specified amount before returning to the 90-degree position. The 4-position actuator also can be customized at the factory to meet specific transformer requirements.

    RSK-PMT devices require the RSO-IV-M18 to operate. It is a lightweight, rechargeable power supply powered by Milwaukee M18 REDLITHIUM ion battery. The unit weighs 15 pounds and is enclosed in a rugged NK-7 high-impact polypropylene carrying case.

    The operator also includes a radio remote with functionality extending as far as 300 feet with line of sight, which operates at 2.4 GHz. The user interface provides tactile feedback for quick adjustments, while a strobe beacon offers visual confirmation when operating inputs are met.

    For more information contact CBS ArcSafe online at https://cbsarcsafe.com/.