Foot Switch Bellows for Foot Switch

  • RS Stock No. 335-375
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Foot/Hand Actuator

An air actuator, for foot or hand operation, moulded in PVC complete with bayonet action mounting plate and 2 m of PVC tube 3 mm bore, 6 mm O.D.
Suitable for use with all air-operated switch elements.

Actuators, Switch Elements, Tubing & Accessories

The air operated switch system offers enhanced safety in hazardous areas by allowing remote operation of electrical circuits.
The actuator is a bellows which, when compressed moves air down the air tubing to the switch element. This compressed air then expands a bellows in the switch, which operates the electrical contacts.
When used in wet environments or where electrical switching would be dangerous due to arcing, the switch and all electrical wiring can be located outside the hazardous area giving the operator total electrical isolation for the equipment.
Such applications include: Battery charging rooms, laboratories, garages, or wherever explosive gases, vapours or powders may exist.

When assembled the air switch and actuator form a sealed system, therefore temperature variation will cause pressure changes, which can in extreme cases affect the performance of the switch. To prevent this the total volume of the system must be kept below a critical value for a given temperature range and, to this end, a maximum length of air tubing (and hence volume) can be given for any combination of switch and actuator.
The additional data tables give these lengths in metres; for moderate and extreme temperatures.

Additional Data - Max Tube Length (m) @ +10 to +30°C Operating Temperature
  Switch Switch Switch Switch Switch Switch
  316-951 317-320 319-742 319-758 319-708 & 319-720 319-714 & 319-736
Actuator - - - - - -
316-945 32.0 11.2 5.0 3.5 39.3 21.6
317-718 16.0 7.2 5.0 3.5 16.4 11.2
317-055 11.2 4.0 3.0 2.0 12.8 8.0
317-061 - - - - - -
317-730 16.8 6.4 6.0 4.0 12.8 8.8
317-746 - - - - - -
Additional Data - Max Tube Length (m) @ –10 to +50°C Operating Temperature
  Switch Switch Switch Switch Switch Switch
  316-951 317-320 319-742 319-758 319-708 & 319-720 319-714 & 319-736
Actuator - - - - - -
316-945 10.4 3.6 1.7 1.2 13.0 7.0
317-718 5.2 2.4 1.7 1.2 5.5 3.6
317-055 2.8 1.2 1.0 0.7 3.3 2.0
317-061 - - - - - -
317-730 4.0 2.8 2.0 1.3 2.8 2.8
317-746 - - - - - -
Specifications
Attribute Value
Accessory Type Bellow
For Use With Foot Switch
51 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 46.60
units
Per unit
1 - 5
MYR46.60
6 - 11
MYR45.19
12 +
MYR44.69
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