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| Thermal Switch Products
Aerospace - Redmond (Defense & Space) |
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250 Series
Thermal Switch
designed for applications requiring
high current capacity in high vibration and shock environments
ALSO SEE: High Current High Reliability Switches
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| DOWNLOAD |
DESCRIPTION |
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High Current Switches. |
High Current Switches. Another innovation from Honeywell - high quality units capable of handling up to 10 amps, with a potential cycle life of over 1,000,000 cycles. |
| TS250 Product Brochure [.pdf] |
TS200 Product Brochure [.pdf]
(requires Adobe Acrobat) contains configuration drawings and sample ordering codes for this product.
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THERMAL SWITCHES exported from the United States must be done in accordance with the Export Administration Regulations (EAR) and/or the International Traffic in Arms Regulations (ITAR) as applicable. |
Application Examples:
- Aircraft window heat controllers and defrosters
- Space Station pump control for liquids
- Battery and compartment temperature control and
overheat
- Power supply overtemperature
- Railroad step defrosters
- Gun mount mechanism de-icing
- Ship gun turrets
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Features:
- High ampere rating
- Rugged all welded hermetic construction
- Solder terminals, screw lugs, or lead wires are available
- Operating temperatures from -85°F to +350°F
- Differential range from 5°F to 35°F
- High vibration resistance
- Crisp SPST or TCST contact operation
- Available in eight standard configurations
- Contacts open or close on rising temperature
- Custom units with special plating, lead wires,
or overmolds can be provided (consult factory)
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Specifications for 250 Series Thermal Switches
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Performance
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| Contact Arrangement: |
SPST; TCST (Two Circuit, Single Throw)
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| Contact Ratings: |
10 amperes resisitive load @ 120 VAC RMS
10 amperes resistive load @ 28 VDC
1/2 H.P. motor load @ 120 VAC RMS |
| Endurance: |
100,000 cycles minimum @ rated DC or AC loads |
| Insulation Resistance: |
1000 megohms minimim @ 500 VDC |
| Dielectric Withstanding Voltage:
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1500 VAC RMS - terminals to case
500 microamperes maximum leakage |
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Environmental (MIL-STD-202)
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| Vibration: |
Meth. 204, Cond. D, 20g peak, 10 to 2000 Hz |
| Shock: |
Meth. 213, Cond. I, 100g peak, 6ms |
| Thermal Shock: |
Meth. 107, Cond. B, -85 to +257°F |
| Acceleration: |
Meth. 212, Cond. A, 20g |
| Moisture Resistance: |
Meth. 106, 240 hrs., 98% RH & from +77- +149°F
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| Hermetic Seal: |
Meth. 112, Cond. B |
| Salt Spray: |
Meth. 101, Cond. B, 48 hours |
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Tolerance Limits |
Specified Temp Setpoint Range |
Standard Setpoint Tolerance |
°F (°C) |
°F (°C) |
-45 to 25 (-43 to -4) |
±8 (4.4) |
26 to 230 (-3 to 110) |
±5 (2.8) |
231 to +350 (111 to 177) |
±7 (3.9) |
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Honeywell's TS250 snap-action thermal switches are specifically designed for applications requiring high current capacity in a high vibration and shock environment.
The hermetic all-welded construction of the TS250 allows use in a broad range of temperature and altitude applications. It is available in eight standard configurations and comes with either solder terminals or screw type lugs.
Use Adobe Acrobat to open the TS250 Brochure which provides more information along with configuration drawings, and schematic diagrams.
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Contact Us, if you have questions, need more information,
or are interested in ordering 250 Series Thermal Switches.
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