GRI DS-01T-B Short Roller Ball Switches, Brown, 10-Pack

When several dark-finished doors need the same concealed actuator, the GRI DS-01T-B bundle keeps both the hardware and appearance consistent. The sheet defines ten brown switches in this listing, giving a home, office, or commercial interior one repeatable roller-ball solution instead of a mix of mismatched contact styles.

The short body sits behind a screw-down flange, while the ball accepts pressure from any direction as the opening closes. Its published movement is 0.2 inch overall; operation begins after 0.08 inch of pre-travel with a plus-or-minus 0.03-inch tolerance. Electrical connection is made at the terminal block, where the normally open Form A reed serves a closed loop rated at 10 W, 200 VDC, and 0.5 A.

Every frame still has to be treated individually. The ball should restore the circuit without bottoming out, and GRI excludes bottom and side tracks because debris and lateral force can compromise movement. Allied checks the mounting depth, meters the loop, and cycles each door before the group is commissioned.