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Controls and Safety : Pressure Switches
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Type MN3
Type MN3
Adjustable set point positive pressure switches Positive pressure switch Snap action, 3 poles, adjustable, brass fitting
Controls and Safety
Pressure Switches
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Product applicable fields
  • Air and Fluid heating solutions
  • Renewable energy
  • Industry
  • Ventilation
  • Agriculture and Farming
  • Petrochemistry
product presentation

Main applications :
Pressure sensing on water heaters, boilers, spas and swimming pools heaters and filters, electrical appliances. Can be used to switch directly 3 pole heating elements.

                                                                                                 Main Features : Membrane: EPDM, dia. 45mm. Silicone on request.

Fluid: Water or air
Fitting: Brass.

Pressure: Positive
Housing: PA66, UL94 VO.

Contacts: 3 SPDT switches, snap action.

Electrical rating: 3/4HP 250VAC, 16 (4)A 250VAC (Available up to 3 × 22 (8)A 3 × 2HP 250VAC). Action: Momentary.

Set point calibration: Field adjustable with screw driver at +/-20% of the factory calibration value. Calibration limits: 5 kPa to 200 kPa (50 to 2000 mbar, 0.7 to 29 PSI).

Electrical connection: 6.35 × 0.8 mm quick connection terminals Maximum pressure: 2 bar (0.2 Mpa, 29 PSI).

Bursting pressure: >8 bar (0.8 Mpa, 116PSI)
Ambient temperature limits: water: 0 to 85°C (32 to 185°F), Air: -10 ~ 85°C (14 to 185°F) Options: Also available with only 2 switches (type MN2)
Approval: no UL certificate