How many contact blocks can fit on the ZB5 or ZB4 operators?


23 September 2022

What is the maximum number of contact blocks you can stack at the back of an XB4/XB5 operators?

Product Line:
22mm Push Buttons

ZB4/ ZB5 Harmony Push Button

Determine the maximum number of contact blocks for an application.      
9 contacts (3 side by side 3 rows deep) can mount behind standard non-illuminated buttons;
6 behind selector switches, non-illuminated, illuminated push buttons, and non-illuminated push pull and turn to release mushroom buttons;
4 behind illuminated push pull mushroom buttons,  illuminated selector switches and non-illuminated trigger action mushroom buttons;
3 behind non-illuminated push on push off buttons, and;
2 behind illuminated push on push off buttons.

The contact blocks enable variable composition of body sub-assemblies and can be stacked to 3 rows, either: 3 rows of 3 single
contacts or 1 row of 3 double contacts + 1 row of 3 single contacts (double contact blocks occupy 2 rows).