SML - Sensitive Air Pressure Switch
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The SML air pressure switch features a sensitive diaphragm to detect changes in air pressure. Easy to install and reliable, this switch is available in two range scales and with an optional neon light indicator.
Available Models:
All Models are CSA Approved, some models are also FM Approved where noted.
- SML 1210003 - .05”-1” WC – 1/8” NPT Connection (8221210003)
- SML 1210034 - .05”-1” WC – Compression Fittings (8221210034)
- SML 1210022 - .05”-9” WC – Compression Fittings (822121022)
- SML 4212004 - .05”-9” WC – CSA & FM Approved – Compression Fittings (8224212004)
- SML 4212021 - .05”-9” WC – CSA & FM Approved – Compression Fittings with Plastic Tube (8224212021)
- SML 4212025 - .05”-9” WC – CSA & FM Approved – 1 Compression fitting and 1-14 UNS adaptor fitting (8224212025)
Features and Specifications:
- Automatic Reset
- Sensitive diaphragm
- Snap-action electrical switch, S.P.D.T. rated at 10 amps
- Electrical Ratings:
- 10A @ 125 VAC.; 8A @ 250 VAC.; 7A @ 277 VAC.;
- 1/8HP @ 125 VAC, 1/4HP @ 250 VAC
- Pilot Duty, 125VA @ 125/277 VAC
- Max. Surge Pressure: 20" W.C.
- Max. Ambient Temperature: 170°F (77°C)
- Min. Ambient Temperature: -40°F (-40°C)
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Available Pressure ranges:
- 0.05" to 1" WC (1-25mm) SML 8221210034
- 0.05" to 9" WC (1-230mm) SML 8224212021
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Connection types:
- 1/4" Hose Barb
- 1/8" NPT
- 1/4" Compression Fitting
