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Overview

The 3500 Series is a single-pole, single-throw switch activated by a snap-action bimetal disc. It meets or exceeds the requirements of MIL-PRF-24236 and is designed for potential military and commercial aircraft applications. It is not QPL listed (see the 3MS1 QPL Series). The case is laser welded to form a hermetically sealed steel housing, with a glass-to-metal seal at the terminal junction. Temperature calibrations are pre-set at the factory, and each unit is thermally and mechanically inspected. It is available to open or close on temperature rise.

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
Precision Thermostats Datasheet -- 5MB
Thermostats Line Guide Product Line Guide English 444KB
Soldering Wire Leads on Precision Hermetic Thermostats Installation Instructions English 57KB
Aerospace and Defense Product Range Guide Product Range Guide English 3MB

Browse 3500 Series Products

Product Functional Properties Operating Temperature Open Temperature Close Temperature
3500 00040010 Open on rise -46 °C to 204 °C [-50 °F to 400 °F] 120.0 °C [248 °F] 100.0 °C [212 °F]
3500 00060116 Close on rise -46 °C to 204 °C [-50 °F to 400 °F] 4.4 °C [8 °F] max. diff. 10.0 °C [50 °F]
3500 00070211 Open on rise -46 °C to 204 °C [-50 °F to 400 °F] 50.0 °C [122 °F] 4.4 °C [8 °F] max. diff.
3500 00080165 Open on rise -46 °C to 204 °C [-50 °F to 400 °F] 60.0 °C [140 °F] 47.8 °C [118 °F]
3500 00100005 Close on rise -46 °C to 204 °C [-50 °F to 400 °F] 51.7 °C [125 °F] 62.8 °C [145 °F]
3500 00120120 Open on rise -46 °C to 204 °C [-50 °F to 400 °F] 130.0 °C [266 °F] 117.8 °C [244 °F]
3500 00150006 Close on rise -51 °C to 204 °C [-60 °F to 400 °F] 74.4 °C [166 °F] 80.0 °C [176 °F]
3500 00180049 Open on rise -46 °C to 204 °C [-50 °F to 400 °F] 15.6 °C [60 °F] max. 4.4 °C [40 °F] min.
3500 00270004 Close on rise -46 °C to 204 °C [-50 °F to 400 °F] 4.4 °C [8 °F] max. diff. 95.0 °C [203 °F]
3500 00290074 Open on rise -51 °C to 204 °C [-60 °F to 400 °F] 35.6 °C [96 °F] 10.0 °C [50 °F]

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