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Series 08-81 Probe Style Bi-Metal Temperature Limiting Thermostat
Brand: Fenwal ControlsA snap-acting bimetallic disc serves as the actuating element in these rugged, precision thermostats.
As the temperature reaches the tamper-proof predetermined set point, the disc snaps to provide rapid, positive contact action minimizing RFI and ensuring high reliability.
These thermostats are individually calibrated and tested to meet both the thermal and the electrical characteristics.
They resist vibration as well as harsh environments.
A wide variety of styles: surface sensing and probe types are available, as well as termination and mounting methods to meet your requirements.
Series 08-81 Probe Style low temperature probe-type thermostats are designed specifically for applications where hermeticity and vibration resistance are required.
When the preset temperature is reached, a snap-acting bimetal disc mounted in the tip of the probe provides fast thermal response and rapid, positive contact action.
To ensure hermeticity, the probes feature welded, stainless steel construction with glass to metal seals.
Switch design and construction provides high vibration and shock resistance sufficient to meet MILSTD-202, Method 204, Condition D.
High contact force and the excellent wiping action of the contacts combine to make the probe suitable for light loads of 100 milliamperes or less.
Features- Calibrated Settings from 35° to 350° F (2° to 176° C)
- Snap-Action Switching
- Shock and Vibration Resistant
- Hermetically Sealed
- Tamper-Proof, Preset Temperature
- 100% Factory Temperature Tested
- CSA Certified
- CE Compliant
- ROHS Compliant
Specifications
Brand
Ambient Temperature Range
- -45° to 176° C (-50° to 350° F)
Approvals & Certifications
- CE
- CSA
- RoHS
Electrical Rating
- 120/240 Vac 5 A (NI), 120/240 VA Pilot Duty
- 30 Vdc at 3 A
Enclosure, Body Material
- Body & Tube: 300 Series Stainless Steel
Insulation Resistance
- 100 Megohms at 500 Vdc
Maximum System Pressure
- psi: 600 (bar: 41, kPa: 4,137) up to 176° C (350° F)
Seat / Seal Material
- Glass-to-Metal Seal
Shock
- Mechanical Shock: MIL-STD-202 G, Method 213B, Condition C. 100 G, 10 ms
Switch Type
- SPST Open or Close on Temperature Rise
Temperature Range
- 116° to 176° C (241° to 350° F)
- 2° to 115° C (35° to 240° F)
Tolerance
- ± 4.5° C (± 8° F) at 116° to 176° C (241° to 350° F), Closed
- ± 4° C (± 7° F) at 2° to 115° C (35° to 240° F)
- ± 6° C (± 10° F) at 116° to 176° C (241° to 350° F), Open
Vibration
- Exceeds MIL-STD-202 G, Method 204D, Condition D, 20 G, 10 to 2000 Hz
Documentation
Data Sheets
- Fenwal Series 08-81 Probe Style Bimetal Temperature Limiting Thermostat Data Sheet pdf 464 KB
- THERMOSTAT, Series 08-02, Surface Mount, Low Temp pdf 572 KB
- THERMOSTAT, Series 08-03, Surface Mount, High Temp pdf 532 KB
- THERMOSTAT, Series 08-05, Surface Mount, Limiting Application pdf 219 KB
- THERMOSTAT, Series 08-06, Surface Mount, Manual Reset, Limiting Application pdf 376 KB
- THERMOSTAT, Series 08-80, Probe Style, High Temp pdf 468 KB