Spamel control pushbutton contact block ST2210-1 — 1 NO (normally open) auxiliary contact for ST22 series

Contact block Spamel ST2210-1 is an auxiliary switching element intended for use with ST22 series control pushbuttons. It provides a single normally open (1 NO) auxiliary contact that can be fitted behind compatible ST22 pushbutton housings to extend contact configurations. The compact design allows integration into industrial operator panels, machinery control stations and panel retrofit projects where a simple on/off switching contact is required for signalling or control circuits.

Advantages

The ST2210-1 contact block offers a straightforward, space-efficient solution for adding a single normally open contact to ST22 pushbutton assemblies. It is designed for reliable mechanical switching, simple mounting behind compatible pushbutton housings and direct connection to control wiring. The component’s construction supports typical industrial use and allows quick replacement or reconfiguration of contact arrangements without modifying the pushbutton housing.

Suitable for

• Adding a single NO auxiliary contact to ST22 series pushbutton assemblies
• Signalling and simple control circuits in machinery and process panels
• Operator panels, control stations and retrofit modifications
• Replacement of worn or damaged auxiliary contacts in compatible pushbuttons

Key specifications

• Contact configuration: 1 NO (one normally open contact)
• Compatibility: designed for ST22 series pushbutton housings
• Function: auxiliary switching element for signalling or control circuits
• Mounting: fits behind the compatible ST22 pushbutton actuator within the housing
• Application environment: suited for industrial control panels and machine operator stations

How to use

To install the contact block, remove the pushbutton actuator from the ST22 housing according to the pushbutton manufacturer’s instructions, fit the ST2210-1 contact block into the designated slot behind the actuator and reassemble the actuator ensuring proper mechanical engagement. Connect the control or signalling wires to the contact terminals following the circuit diagram for your control system, and verify the contact operation with a continuity test before energising the circuit. For replacement, disconnect power, remove the old contact block, and install the ST2210-1 following the same procedure.

Usage recommendations

Use appropriate wire sizes and terminal tightening torques recommended for your control system; observe all applicable electrical safety standards and disconnect power before installation or maintenance. Verify compatibility with the specific ST22 pushbutton model in use and perform functional checks after installation.