Spamel control switch ST22 contact block 1NC for ST22 pushbuttons

Contact block designed for Spamel control switch ST22 pushbuttons, featuring a single normally-closed (1NC) contact. This accessory fits ST22 series pushbutton housings to provide a reliable switching element for control circuits in industrial panels and equipment. The unit is intended for use where a normally-closed contact is required to maintain circuit continuity until the actuator is operated.

Advantages

The contact block offers compact dimensions and straightforward mechanical attachment to ST22 pushbutton modules, enabling quick replacement or configuration changes. Constructed for industrial usage, it provides consistent electrical performance for control and safety circuits. Its single normally-closed contact simplifies wiring for applications that need break-on-actuation behaviour.

Suitable for

• Control panels in manufacturing and processing equipment
• Machine start/stop circuits requiring a normally-closed contact
• Operator stations and console-mounted pushbutton assemblies
• Maintenance and retrofit projects where modular contact blocks are preferred

Key specifications

• Contact configuration: 1 normally-closed (1NC)
• Mounting: compatible with ST22 series pushbutton housings
• Intended application: control and safety switching in industrial environments

How to use

Install the contact block by aligning it with the mating area of the ST22 pushbutton housing and engaging the mechanical latching features until it clicks into place. Connect supply and load conductors to the designated terminal points following the control circuit diagram. Verify proper electrical continuity in the closed state and confirm that actuation of the pushbutton opens the contact. Follow standard lock-out/tag-out and electrical safety procedures while performing installation or maintenance.

Usage recommendations

Use the 1NC contact block in circuits that require a closed path until the pushbutton is pressed. Ensure terminals are tightened to the manufacturer’s recommended torque and the ambient conditions match the intended industrial environment. Inspect contacts periodically for wear or contamination and replace the block if electrical performance degrades.