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Know the moment.

The GRI RB-01-W (RB-01 Plunger Switch) is a white, closed loop roller ball plunger contact from George Risk Industries. It pairs a magnetic reed with a mechanical plunger, so it gives you plunger action in a hermetically sealed switch. It suits doors and windows, where the ball is actuated as the sash slides into its frame, and it also works as a hidden trap device under a protected object.
Brand: GRI (George Risk Industries)
Model: RB-01-W
Product series: RB
Product type: Plunger Switch
Contact type: Closed Loop
Color: White
Mounting: Screw down flange
Contacts: Plated contacts resist sticking or freezing
Installation type: Hybrid (DIY + Professional)
Country of origin: US
Package contents: RB-01 Plunger Switch, Mounting Hardware, Spacers
Mount the switch on a firm, flat surface with the screw down flange, and use the supplied spacers to fine-tune how far the ball sits from the door or window frame. Test the loop after mounting, and confirm the ball is actuated reliably as the door or window closes.
| Brand | GRI |
|---|---|
| Model | RB-01 |
| Product type | Roller Ball Plunger Switch |
Specs are taken from the manufacturer listing. Need a detail that isn't here? Ask us.
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