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Application Guide for Thermal Over-Temperature Devices
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T1 Thermal Fuse Devices The T1 Over-Temperature Device is a eutectic switch with a pre-specified melt temperature. The “one shot” characteristic is useful in alerting operators to identify and remedy the cause of the over-temperature condition in the course of T1 fuse replacement. UL/CSA listed rating of 15 amps up to 277 VAC
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Single Phase |
Power Contactor |
Multi-Phase |
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T2 Bi-Metal Switch The T2 Over-Temperature Device is a slow make/slow break bimetallic thermostat with a pre-specified calibration temperature. The slow break characteristic coupled with the push button reset feature is extremely useful when a low liquid level occurs. The T2 Over-Temperature Device is electrically installed with a holding circuit in conjunction with a power contactor to energize the heater. The T2 must never be used to directly switch heater power. UL/CSA listed rating of 6 amps@120VAC or 4 amps@240VAC
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Basic Relay Holding Circuit |
Typical Installation |
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Replacement Thermal Protection Accessories |
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Various construction methods are used in the manufacture of Teflon®
Quartz and Metal Tube Over-the-Side Immersion Heaters. |
| T1 Thermal Fuse Devices | ||
| Description | Catalog Number | Price |
| T1 Thermal Fuse for Teflon® | TMC90001 | $25.00 |
| Over-the-Side Heaters (rated to 190°F) | ||
| T1 Thermal Fuse for Quartz | ||
| Over-the-Side Heaters (w/SS Braid Sleeving) | ||
| • Solutions up to 180°F (82.2°C) | TMC90002 | $25.00 |
| • Solutions from 180°F to 220°F (82.2°C to 104.4°C) | TMC90003 | $25.00 |
| T1 Thermal Fuse for Straight Metal | ||
| Over-the-Side Heaters | ||
| • Solutions up to 180°F (82.2°C) | TMC90005 | $25.00 |
| • Solutions from 180°F to 220°F (82.2°C to 104.4°C) | TMC90006 | $25.00 |
| • Solutions from 220°F to 300°F (104.4°C to 149.0°C) | TMC90007 | $25.00 |
| T1 Thermal Fuse for L-Shaped Metal | ||
| Over-the-Side Heaters | ||
| • Solutions up to 180°F (82.2°C) | TMC90008 | $35.00 |
| • Solutions from 180°F to 220°F (82.2°C to 104.4°C) | TMC90009 | $35.00 |
| • Solutions from 220°F to 300°F (104.4°C to 149.0°C) | TMC90010 | $35.00 |
| T2 Bi-Metal Switch | ||
| T2 Bi-Metal Switch for Teflon® | TMC90101 | $25.00 |
| Over-the-Side Heaters (rated to 190°F) | ||
| T2 Bi-Metal Switch for Quartz | ||
| Over-the-Side Heaters (w/SS Braid Sleeving) | ||
| • Solutions up to 180°F (82.2°C) | TMC90102 | $25.00 |
| • Solutions from 180°F to 220°F (82.2°C to 104.4°C) | TMC90103 | $25.00 |
| • Solutions from 220°F to 300°F (104.4°C to 149.0°C) | TMC90104 | $25.00 |
| T2 Bi-Metal Switch for Straight Metal | ||
| Over-the-Side Heaters | ||
| • Solutions up to 180°F (82.2°C) | TMC90105 | $25.00 |
| • Solutions from 180°F to 220°F (82.2°C to 104.4°C) | TMC90106 | $25.00 |
| • Solutions from 220°F to 300°F (104.4°C to 149.0°C) | TMC90107 | $25.00 |
| T2 Bi-Metal Switch for L-Shaped Metal | ||
| Over-the-Side Heaters | ||
| • Solutions up to 180°F (82.2°C) | TMC90108 | $35.00 |
| • Solutions from 180°F to 220°F (82.2°C to 104.4°C) | TMC90109 | $30.00 |
| • Solutions from 220°F to 300°F (104.4°C to 149.0°C) | TMC90110 | $35.00 |