Empty Enclosures for Pushbuttons - Metal The 3SB3 range of enclosures are in grey metal. They are empty enclosures for 1, 2, 3, 4 or 6 command positions. Round range, nominal diameter 22 mm Cable routing on the top and bottom Each 1 x M20 metric cable gland for 1 to 3 command positions Each 1 x M25 metric cable gland for 4 and 6 command positions Mounting holes are located external to the terminal compartment PHASE OUT NOTIFICATION This product is in obsolescence mode and is due for discontinuation by the manufacturer. We recommend that you review the new pushbutton range SIRIUS ACT which is the alternative range proposed by the manufacturer. Please refer to the 3SB3 / SIRIUS ACT cross-reference guide located in the technical reference section. Enclosures Enclosures featured come with 22mm holes unless otherwise stated.