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Klixon
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M2 Series Hermetic Narrow Differential Thermostat

The KLIXON® M2 Series Hermetic Narrow Differential thermostat utlizes a snap-acting bimetallic disc housed in a low profile hermetic package. The M2 provides tight control of temperature with differentials as tight as…

Manufacturer
Klixon
Part No
M2
Category
Temperature Sensors

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Overview

The KLIXON® M2 Series Hermetic Narrow Differential thermostat utlizes a snap-acting bimetallic disc housed in a low profile hermetic package. The M2 provides tight control of temperature with differentials as tight as 2 to 4 °F and as wide as 5 to 9 °F. Available for purchase to commercial, M24236/20, or S-311-P641/02 part numbers these thermostats are an excellent choice for for applications controlling temperature in aircraft anti-ice systems, aircraft water line and valve heaters, locomotive starting systems, spacecraft battery heaters, and spacecraft propulsion line heaters.

Features

  • Hermetically sealed
  • Vacuum baked and back–filled with dry nitrogen
  • Single pole, single throw (SPST)
  • Normally open or normally closed
  • Low profile
  • Narrow differential
  • Preset, non–adjustable calibration
  • Long cycle life (250,000 cycles)
  • Qualified to MIL-S-24236/20
  • Qualified to NASA S-311-641/02

Part Numbers

Specifications

Switch ActionSPST, normally open or normally closed
Contact Resistance0.050 ohms maximum, per MIL-STD-202, Method 307
Dielectric Strength1250 VAC, rms, 60 cycles for 1 minute, terminal to case per MIL-STD-202,Method 301
Vibration Resistance10-2000 Hz, 10G, per MIL-STD-202, Method 204, Condition D, (monitored)
Shock Resistance100G, 6 milliseconds, per MIL-STD-202, Method 213
Hermeticity1 X 10-8 atm cc/sec. maximum, per MIL-STD-202, Method 112, Condition C
Salt Spray ResistancePer MIL-STD-202, Method 101, Condition B, 5% solution
Weight5.4 grams (average)
Ambient Temperature Range-65°F to 400°F (-53.9°C to +204.4°C), depending on calibrated temperature.Exposure is limited to 100°F above operating temperature for close on risedevices or 100°F below operating temperature for open on rise devices.Consult factory if you need to exceed these limits and we can adjust theswitch build to accommodate your needs.
Operating Temperature Range0°F to 240°F, (-17.8°C to +115.6°C)

Documents & Downloads

Part NumberFile DateFile TypeSizeDownload
M213/07/2023.PDF276KB