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ML1S Series Temperature Switch

Brand: Barksdale

ML1S Series temperature switches are economic, bi-metallic, factory pre-set temperature switches that complement both our new and traditional temperature switch lines.

The ML1S features a one-piece, brass thermowell design, which houses a bi-metallic, SPST snap switch. This one piece, brass housing comes standard with 1/2" NPT process and conduit connections, is rated NEMA 4 and IP65 and is UL and CSA recognized.

Switching action is SPST, wired normally open or closed and rated for 15 amps @ 125 Vac, 10 amps @ 250 Vac.

The one-piece design offers integrity against leaks when compared to other welded two-piece designs.

For low or high limit alarm, shut-off, or control, the ML1S is ideal for OEM applications when a compact, inexpensive temperature switch is required.
Features
  • Bi-metallic Sensor
  • Compact Design
  • NEMA 4
  • One piece design

1 - 12 of 2,080 Part Numbers
ML1S-125-D-C
ML1S-125-D-C
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - None
ML1S-125-D-C-W1.0
ML1S-125-D-C-W1.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 1 Extra Wire Length (inches)
ML1S-125-D-C-W10.0
ML1S-125-D-C-W10.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 10 Extra Wire Length (inches)
ML1S-125-D-C-W11.0
ML1S-125-D-C-W11.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 11 Extra Wire Length (inches)
ML1S-125-D-C-W12.0
ML1S-125-D-C-W12.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 12 Extra Wire Length (inches)
ML1S-125-D-C-W13.0
ML1S-125-D-C-W13.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 13 Extra Wire Length (inches)
ML1S-125-D-C-W14.0
ML1S-125-D-C-W14.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 14 Extra Wire Length (inches)
ML1S-125-D-C-W15.0
ML1S-125-D-C-W15.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 15 Extra Wire Length (inches)
ML1S-125-D-C-W16.0
ML1S-125-D-C-W16.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 16 Extra Wire Length (inches)
ML1S-125-D-C-W17.0
ML1S-125-D-C-W17.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 17 Extra Wire Length (inches)
ML1S-125-D-C-W18.0
ML1S-125-D-C-W18.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 18 Extra Wire Length (inches)
ML1S-125-D-C-W19.0
ML1S-125-D-C-W19.0
  • Base Model - Miniature Local Thermowell
  • Switch Type - Single SPST Switch Point
  • Housing - Stripped Model
  • Set Point - 52° C (125° F)
  • Set Point Direction - Decreasing (Falling) Temperature
  • Contact Form - Normally Closed
  • Options - 19 Extra Wire Length (inches)
1 - 12 of 2,080 Part Numbers

Specifications

Brand

Accuracy

  • ± 5.6° C (± 10° F)

Adjustment Type

  • Factory Set (Pre-Set)

Applications

  • Air Compressors
  • Industrial OEM Equipment
  • Machine Tools
  • Medical Compressors
  • Mining
  • Water Treatment

Approvals & Certifications

  • CE
  • CSA
  • UL

Conduit Connection

  • 1/2” NPT

Deadband, Approximate

  • 10° to 20° C (18° to 36° F)

Electrical - Free Leads

  • 18” (45 cm), 18 AWG PTFE Free Leads

Electrical Rating

  • 15 A at 125 Vac, 10 A at 250 Vac

Enclosure, Body Material

  • Brass

Environmental Protection

  • IP65
  • IP66
  • NEMA 4 / IP65, 66

Maximum Sensor, Probe Temperature

  • 171° C (340° F)

NPT Connection

  • 1/2” NPT Male

Operating Temperature

  • 10° to 149° C (50° to 300° F)

Proof Pressure

  • bar: 34.5
  • kPa: 3,447
  • psig: 500

Sensor, Probe Material

  • Brass

Set Point - Decreasing

  • 24° to 93° C
  • 24° to 93° C (75° to 200° F)

Set Point - Increasing

  • 10° to 149° C
  • 10° to 149° C (50° to 300° F)

Switch Type

  • SPST - Normally Open or Normally Closed

Wetted Materials

  • Brass

  • Air Compressors
  • Industrial OEM Equipment
  • Machine Tools
  • Medical Compressors
  • Mining
  • Water Treatment

Documentation

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