Spamel ST22-P.C-10 2-Position Selector Switch, 22mm, Red Knob, 1NO, Maintained

The Spamel ST22-P.C-10 is a high-quality 2-position selector switch engineered for industrial control applications. Designed for standard 22mm mounting holes, this device features a distinct red knob for easy identification and operation. It is configured with one normally open (1NO) contact and utilizes a maintained switching mechanism, meaning the switch remains in its selected position until manually toggled again. Its robust build quality makes it a reliable component for electrical panels and automation systems requiring stable, long-term performance.

Advantages

This selector switch offers exceptional durability and reliability in demanding industrial environments. The maintained action ensures that the state of the circuit remains constant without the need for continuous operator input, which is essential for specific control logic. Its compact 22mm design allows for efficient space utilization on control panels, while the high-visibility red knob facilitates quick and intuitive operation by personnel. The construction materials are selected to withstand frequent use, ensuring consistent electrical connectivity and mechanical longevity.

Suitable for

• Industrial automation control panels
• Machine operation consoles
• Electrical distribution systems
• Manual override switching
• Process control equipment

This switch may not be suitable for applications requiring momentary contact, where the circuit must automatically return to its original state once the knob is released. It is also not intended for high-voltage power switching beyond its rated electrical capacity or for environments with extreme corrosive elements that exceed the protection rating of the housing.

Key specifications

• Mounting diameter: 22mm
• Switch positions: 2
• Contact configuration: 1NO (Normally Open)
• Operation type: Maintained (non-spring return)
• Color: Red knob

To install the switch, insert the actuator through the 22mm panel cutout and secure it firmly using the provided locking nut. Once mounted, connect the electrical wires to the 1NO contact terminals according to your wiring diagram. Ensure that the connections are tightened to the specified torque to prevent loose contacts. After installation, verify the switching action by rotating the knob to both positions to confirm that the circuit closes and opens as intended.

What to consider before purchase

• Ensure the 22mm mounting hole size matches your panel design.
• Verify that a maintained (non-spring return) action is required for your specific application.
• Confirm that a single 1NO contact configuration meets your circuit requirements.
• Check the available space behind the panel to accommodate the switch depth.

For optimal performance and safety, ensure that the switch is installed by qualified personnel in accordance with local electrical regulations. Periodically inspect the terminals for tightness and ensure the knob mechanism remains free of debris to maintain smooth operation.