GRI RB-03-B Switch Rollerball, Brown
- Works from all 360° of direction
- Screw down flange
- Fits in a 3/4″ hole
- Travel distance total .200, pre-travel is .080 ±.030
- 12″ #22AWG leads

GRI’s Roller Ball Switch is a unique application of the magnetic reed, combining into a single package, a mechanical plunger action and the reliability of a hermetically sealed switch. The ball plunger can be activated from any 360° direction, using a sliding motion. One typical example is that action produced by opening or closing of a door or window into its frame. The roller ball switch is also very effective used as an interior trap device by mounting on a flat surface, such as a display table, and placing the protected object directly on the switch to conceal and actuate the roller ball. GRI roller ball switches can work when nothing else will. Spacers and mounting hardware included with switch and also available separately. Not recommended for the bottom tract of doors and windows.
GRI RB-03-B Rollerball Switch Features
- 360° Activation: Works from all 360° of direction, ensuring versatile application for various installations.
- Screw Down Flange: Easy installation with a secure mounting option to prevent loosening over time.
- Compact Fit: Fits in a 3/4” hole, allowing it to be used in tight spaces without compromising functionality.
- Precise Travel Distance: Travel distance totals .200 with a pre-travel of .080 ± .030, providing reliable activation every time.
- Wired Convenience: Comes with 12” #22AWG leads for straightforward connection and installation.
- Terminal Version Option: Refer to DS-01T for the terminal version, expanding compatibility based on user needs.
- Custom Lead Options: Longer leads, zip cords, or jacketed cable available upon request for customized installations.
- Hermetically Sealed: Provides protection against environmental factors, ensuring durability and longevity.
- Plated Contacts: Resist sticking or freezing, guaranteeing consistent performance in various conditions.
- Included Hardware: Spacers and mounting hardware included, simplifying the setup process.
- Custom Resistors and Diodes: Built-in E.O.L. resistors and diodes available upon request for enhanced functionality.
- Switch Availability: Additional switches and spacers can be purchased separately as needed.
- Supervisory Loops: Availability upon request, facilitating advanced security configurations.
- Color Options: Available in white and brown, allowing for aesthetic versatility in installations.
GRI RB-03-B Detailed Specifications
| Feature | Details |
| Activation Type | 360° directional activation |
| Mounting | Screw down flange |
| Fit Size | 3/4” hole |
| Travel Distance | Total: .200, Pre-travel: .080 ± .030 |
| Lead Length | 12” #22AWG leads |
| Terminal Version | Refer to DS-01T |
| Custom Lead Options | Available upon request |
| Sealing | Hermetically sealed |
| Contact Type | Plated contacts |
| Included Hardware | Spacers and mounting hardware |
| Custom Options | Built-in E.O.L. resistors and diodes upon request |
| Color Options | White and brown |





