The A22NZSG1A is a single-pole, single-throw, normally open (SPST-NO) contact block subassembly for the A22N, M22N, and A30N series of control panel switches. It features a screw terminal block design that is compatible with round crimp terminals, ensuring secure wiring connections. This blue-colored contact block has a rated insulation voltage of 600V and a rated carry current of 10A. Designed for easy assembly, it can be attached in any direction to the mounting collar of a compatible switch. This component is ideal for adding or replacing contacts in pushbutton switches, selector switches, and indicators, contributing to the modularity and maintainability of control panel systems.