RS PRO Panel Mounted 250 mm Momentary Air Switch SP Single Pole Changeover 16A 250V AC 319-720

RS PRO 319-720 is a panel mounted momentary air switch measuring 250 mm in lead length, designed by RS PRO for safe electrical switching in hazardous or sensitive environments. It utilizes air pressure to actuate the switch, making it ideal for applications where electrical switching hazards from sparks or arcs exist.

This single pole changeover (SPCO) air switch operates with a typical 1 PSI air pressure, commonly used with 3 mm internal diameter tubing. The device is constructed for through panel mounting, fixed via a 9/16 UNF nut included with the product, or alternatively surface mounted using M3 or No. 6 self-tapping screws through 3.2 mm diameter holes.

The electrical contacts are rated at 16A 250 VAC and 30V DC, offering reliable switching performance in industrial and laboratory settings. The contacts connect with 1/4 inch terminals, providing secure and easy wiring. The unit operates safely in temperatures from -10°C to +60°C, adhering to UL standards for quality assurance.

Common applications for this air switch include battery charging rooms, laboratories, garages, and any locations with explosive gases, vapours, or powders where electrical arcing risk must be minimized. Its design isolates all electrical connections within an enclosure, allowing the switch to be actuated remotely via compressed air and ensuring operator safety.

The air switch mechanism consists of a bellows actuator which, when pressed, compresses and sends air through tubing to a secondary bellows inside the switch, triggering the electrical contacts. This provides enhanced isolation and durability for sensitive or hazardous industrial environments.

Operates with approximately 1 PSI air pressure to activate the switch element. Designed for panel mounting with supplied 9/16 UNF fixing nut or optional surface mount. Single pole changeover contact rated at 16A 250V AC, 30V DC.

Safe operation in explosive atmospheres and wet environments. Compatible with 3 mm I/D tubing for air actuation. Operating temperature range of -10°C to +60°C. UL certified for compliance and safety assurance.

This RS PRO air switch is part of a series designed to offer reliable air-operated switching solutions for industrial, laboratory, and hazardous area electrical control applications. Explore more Switches and industrial electrical controls by browsing the Electronics & Electricals category at EnvMart.