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RS PRO Surface Mounted Air Switch 1 NO/1 NC Contact Configuration for 3 mm I/D Tubing 317-320
Specifications
| Country of Origin | United Kingdom |
|---|---|
| Brand | RS PRO |
| Model | 317-320 |
| Mount Type | Surface |
| Series | RS PRO |
| Contact Configuration | 1 NO/1 NC |
| Sub Type | Air Switch |
| For Use With | 3 mm I/D Tubing, Battery Charging Rooms, Garages or Wherever Explosive Gases, Laboratories, Vapours or Powders May Exist |
| Standards/Approvals | UL |
| Such applications include | Battery charging rooms, laboratories, garages, or wherever explosive gases, vapours or powders may exist |
Key Features
- The switch is designed for surface mounting using four No. 4 self-tapping screws.
- Includes two SPDT microswitch contacts for alternate or momentary action.
- Operates with 3 mm I/D tubing for use in hazardous areas like battery charging rooms and laboratories.
- Each switch contact is rated at 15 A and 250 V AC for industrial applications.
- Maximum operating pressure is 15 psi with typical operating pressure at 1.2 psi.
- UL approved, ensuring compliance with safety standards.
- Constructed to provide electrical isolation preventing dangerous arcing in volatile atmospheres.
- Compact bellows actuator design minimizes volume and sensitivity to temperature-induced pressure changes.
Product Description
RS PRO 317-320 Surface Mounted Air Switch offers a robust and safe solution for remote electrical circuit control in hazardous industrial and laboratory environments. This air operated switch features a surface mount design with two SPDT microswitch contacts, delivering effective alternate or momentary switching actions.
The switch is constructed with a bellows actuator mechanism that transmits compressed air through 3 mm I/D tubing to the switch element, ensuring full electrical isolation from the hazardous zone. Rated for 15 A at 250 V AC, it is well suited for applications in battery charging rooms, garages, laboratories, and similar areas where explosive gases, vapours, or powders may be present.
The unit operates with a typical pressure of 1.2 psi and withstands pressures up to 15 psi. The device’s UL approval guarantees adherence to established safety standards, enhancing reliability in critical deployments.
Installation is done by mounting with four No. 4 self-tapping screws, with careful consideration not to exceed 6 mm screw length to protect the internal bellows. The sealed system design advises maintaining the tubing volume to minimize pressure fluctuations caused by temperature variations, ensuring consistent switch performance.
The switch provides two SPDT contacts, with one contact operating before the other in momentary action or simultaneously in alternate action. Designed to enhance safety in potentially explosive atmospheres by isolating electrical switching components from the hazardous area.
The sealed bellows system assures longevity and performance stability under variable environmental conditions. Applications include industrial, laboratory, and commercial use in environments requiring non-electrical actuation.
This product exemplifies quality and safety from RS PRO, suitable for use in demanding industrial and hazardous area control systems. Explore more RS PRO Switches and control devices in our extensive EnvMart catalog.
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Frequently Asked Questions
This model features a contact configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) contact, allowing for both alternate and momentary switching actions.
The maximum operating pressure for this air switch is 15 psi, with a typical operating pressure of 1.2 psi.
It is suitable for use in battery charging rooms, garages, laboratories, and other environments where explosive gases, vapours, or powders may be present.
The switch is designed for surface mounting using four No. 4 self-tapping screws, ensuring secure installation.
Each switch contact is rated at 15 A and 250 V AC, making it suitable for industrial applications.
This air switch operates with 3 mm internal diameter (I/D) tubing, which is essential for its function in hazardous areas.
The switch is UL approved, ensuring compliance with established safety standards for electrical devices.
It features a compact bellows actuator design, which minimizes volume and sensitivity to temperature-induced pressure changes.
During installation, it is important to not exceed a screw length of 6 mm to protect the internal bellows from damage.
This air switch is manufactured in the United Kingdom.
The switch is designed to provide electrical isolation by using a bellows actuator mechanism that transmits compressed air, preventing dangerous arcing in volatile atmospheres.
It is specifically designed for use in hazardous industrial and laboratory environments where non-electrical actuation is required.
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