Home / Controls, safety & Regulation / Pressure switches / Type: MN3, snap action contact pressure switch, field adjustable, metal fitting, 3 poles DT contact
DIMENSIONS
Uses: High electrical rating, for 250V.
Main applications: Pressure sensing on water heaters, boilers, spas and swimming pools heaters and filters, electrical appliances (For incorporation).
Membrane: EPDM, dia 45 mm. Silicone or NBR on request.
Fluid: water or air.
Fitting: Brass (stainless steel on request).
Pressure: positive.
Housing: PA66, UL94 VO, IP00.
Contacts: 3 SPDT switches, snap action. NO or NC contacts available with MOQ Electrical rating: Depends on micro-switch operating force that is linked to the electrical rating.
– Standard rating micro-switch (medium and high pressure calibration only): 16A 125/250VAC;1/2HP 125VAC; 3/4HP 250VAC.
– High rating micro-switch (medium and high pressure calibration only): 2HP 240V, 21(8) A 240V (UL, CSA VDE switch).
– Low force micro-switch (set points less than 150 mbar): 1/4HP 6(1) A 240V ( UL, CSA VDE switch).
– On request: up to 25A 250V.
Action: momentary.
Set point calibration: Field adjustable with screw driver at+/- 20% of the factory calibration value.
Calibration limits: 150 to 1500 mbar.
Electrical connection: 6.35 x 0.8 mm terminals.
Maximum pressure: 6 bars (87 PSI).
Ambient temperature limits: 0 to 85°C.
Available pressure inlet fittings ①
References (SPDT contact, brass fitting, calibrated at 400 mbar):
Pressure inlet | Standard rating micro-switch | Low pressure micro-switch | High rating micro-switch |
1/8″ NPT | MN30U145H040DE00 | MN30U540H040DE00 | MN30U647H040DE00 |
1/8″ BSPT | MN30U145L040DE00 | MN30U540L040DE00 | MN30U647L040DE00 |
1/8″ BSPP | MN30U145D040DE00 | MN30U540D040DE00 | MN30U647D040DE00 |
1/4″ NPT | MN30U145K040DE00 | MN30U540K040DE00 | MN30U647K040DE00 |
1/4″ BSPT | MN30U1452040DE00 | MN30U5402040DE00 | MN30U6472040DE00 |
1/4″ BSPP | MN30U1453040DE00 | MN30U5403040DE00 | MN30U6473040DE00 |
Smooth spout dia 4mm | MN30U145E040DE00 | MN30U540E040DE00 | MN30U647E040DE00 |
Spout dia 6mm | MN30U145F040DE00 | MN30U540F040DE00 | MN30U647F040DE00 |
Fluted spout dia 6mm | MN30U145G040DE00 | MN30U540G040DE00 | MN30U647G040DE00 |
Barbed spout dia 10mm | MN30U145J040DE00 | MN30U540J040DE00 | MN30U647J040DE00 |
Other set point values: replace 040 in the product reference by the calibration value.