These locking devices prevent unauthorized use of push button emergency devices. To be used with 22 mm diameter pushbuttons. Dimensions - Width (mm): 22.00 mm. Dimensions - Height (mm): 50.80 mm. Dimensions - Thickness (mm): 63.5 mm. Dimensions - Diameter (mm): 64.00 mm. Size - W x H x D (mm): 22.00 x 50.80 x 63.5. Button size: 22.50mm. Hole diameter (mm): 23.00 mm. Max.diameter padlock height (mm): 8.13 mm. Dimensions: 22.00mm W x 50.80mm H x 64.00mm Dia x 63.5mm D. Material Features: Material: Polycarbonate. Material Type: Polycarbonate. Color: Transparent. Operating temperature ° C: 80 ° C. Minimum operating temperature ° C: -20 ° C. Adhesive (Y / N): No. Conductive: No. Product Features: Branded: Yes. Button Type: IEC; NOT MY. Max. of attached padlocks: 1. Risk: Electrical risk, Mechanical risk.