Каталог продукции Emerson 2018 - Тепловые предохранители MICROTEMP

Текст каталога

1. Стр. 1 MICROTEMP®

   Thermal Fuses Product Information and Application Notes

2. Стр. 2 Upper Limit Temperature Protection

   MICROTEMP®, the original thermal fuse from Therm-O-Disc, was developed in 1965 for jet fuel pumps and is now widely used in heating, appliances, and automotive applications. Therm-O-Disc offers the broadest combination of globally certified temperatures and electrical loads, as well as the broadest…

3. Стр. 3 G4 MICROTEMP Thermal Fuses

   G4 MICROTEMP - the Original Thermal Fuse Providing reliable back-up protection for temperature controlling thermostats and other over-temperature conditions, the G4 series MICROTEMP thermal fuse is the industry standard for over-temperature protection. The G4 is rated for continuous operating…

4. Стр. 4 G4 MICROTEMP Product Information

   Before Operation After Operation Operating Temperature Summary Standard Dimensions Standard Leads Tf°C Th°C Tm°C A Overall Length ± .12” (±3.0mm)* 2.51” (63.8mm) B Case Lead Length ± .06” (±1.5mm) 1.38” (34.9mm) C Case Lead Diameter 0.040” (1.0mm) Case Lead Material Tin Plated Copper Isolated Lead…

5. Стр. 5 G5 MICROTEMP Thermal Fuses

   G5 MICROTEMP - the Original Thermal Fuse Designed for higher voltage and current applications, the G5 MICROTEMP Thermal Fuse is rated for operating currents up to 20 amps @ 277 VAC. The internal construction of the G5 is designed for interrupting higher currents and withstanding higher temperatures…

6. Стр. 6 G5 MICROTEMP Product Information

   Before Operation After Operation Standard Dimensions Operating Temperature Summary Standard Leads Tf°C Th°C Tm°C A Overall Length ± .12” (±3.0mm)* 2.51” (63.8mm) B Case Lead Length ± .06” (±1.5mm) 1.38” (34.9mm) C Case Lead Diameter 0.040” (1.0mm) Case Lead Material Tin Plated Copper D E/F Isolated…

7. Стр. 7 Z6 MICROTEMP Thermal Fuses

   Z6 MICROTEMP - the Original Thermal Fuse MICROTEMP thermal fuses offer an accurate, reliable solution to the need for upper limit temperature protection against overheating by interrupting an electrical circuit when operating temperatures exceed the rated temperature. Designed to meet European…

8. Стр. 8 Z6 MICROTEMP Product Information

   Before Operation After Operation Operating Temperature Summary Standard Dimensions Standard Leads Tf °C Th °C Tm °C 083 280 A Overall Length ± .12” (±3.0mm)* 2.51” (63.8mm) 098 B Case Lead Length ± .06” (±1.5mm) 1.38” (34.9mm) C Case Lead Diameter 0.040” (1.0mm) Case Lead Material Tin Plated Copper…

9. Стр. 9 MICROTEMP Mountings & Configurations

   MICROTEMP thermal fuses are available in a wide range of mountings and configurations to meet a variety of application requirements. The G Series represents the world standard in thermal fuses. MICROTEMP TCO’s were the first chemical-pellet springtype TCO ever developed and continue to be the…

10. Стр. 10 Packaged Thermal Fuses

    MICROTEMP thermal fuses also come in a variety of mounted and packaged options. Designed primarily for HVAC heating applications, the GXAM04 and GXAM06 packages mount a standard thermal fuse on a high temperature ceramic base. The popular GXAP packages consist of a thermal fuse epoxy-potted into a…

11. Стр. 11

    Thermal fuses can be furnished with virtually any lead configuration specified for an application. Lead curls are available to match most screw sizes along with varying lead lengths and lead forms. All types of terminations, such as quick connects, ring terminals and blade terminals are available at…

12. Стр. 12 Tape & Reel Packaging

13. Стр. 13 Product Nomenclature

    (LEAD, LENGTH, STENCILING, COLOR) As shown above, Therm-O-Disc MICROTEMP TCOs follow a consistent product nomenclature that identifies the basic product type, lead wire size, special features and packaging options. For example, a standard G4 series TCO calibrated to open at 192°C would have a part…

14. Стр. 14 Temperature Ratings

    MICROTEMP thermal fuses are available in a wide range of opening temperatures, providing designers a high degree of flexibility. The proper calibration will be affected by application variables such as I2R self heating of the thermal fuse, heat transfer through insulation and heat dissipation due to…

15. Стр. 15 Electrical Rating Summary

    Electrical Current & Voltage Rating Resistive Inductive G8 Resistive 5A/250VAC 5A/24VDC 4.5A/120VAC2 4.5A/250VAC2 20A/277VAC 25A/250VAC 10A/250VAC 8A/250VAC 20A/250VAC 16A/250VAC 16A/250VAC 5A/250VAC 5A/24VDC 5A/24VDC CCC 8A/250VAC 20A/250VAC 16A/250VAC 16A/250VAC 10A/250VAC 5A/250VAC PSE JET3…

16. Стр. 16 Application of Thermal Fuses

    MICROTEMP® thermal cutoffs, available in a variety of standard and custom configurations, provide reliable one-shot, over-temperature protection in a wide range of applications. Performance can be affected by installation method and location of the thermal cutoff. Both application and installation…

17. Стр. 17

    case lead. Long term testing is recommended in determining whether these conditions exist in the application. To minimize the effects of thermal gradients and the temperature increase of the TCO body from this heat flow, attach the isolated (epoxy) lead, rather than the case lead, to the heat…

18. Стр. 18 Installation, Processing and Handling of Thermal Fuses

    To avoid a false reading of the unit under test, thermocouple wires must not make contact with each other except at the temperature sensing junction. Ensure that the thermocouple wire insulation will provide isolation against short circuiting and shock hazards. The terminal of the temperature…

19. Стр. 19

    ed, since the results may not be the same as with undamaged units. The thermal fuse Tf selected should be equal to or less than the temperature recorded at the thermal fuse at the time the maximum desired temperature is reached. Excessive overshoot temperature after the opening of the thermal fuse…

20. Стр. 20

    Test samples should be x-rayed before and after the soldering operation. The size of the pellet should be measured to verify that no shrinkage has occurred during the soldering operation. The epoxy seal should retain its size and shape and not discolor. If the pellet or the epoxy have changed size…

21. Стр. 21

    Thermal fuse leads must be supported during the weld operation to prevent damaging the thermal fuse epoxy seal. Splices and Terminations Insecure splices and terminations may produce high resistance junctions which can cause self-heating (I2R) as power is dissipated across these junctions during…

22. Стр. 22 Bending Leads

    When configuring leads, special care must be exercised in supporting the leads at each end near the body of the thermal fuse so that the case will not be distorted or the epoxy will not be cracked or broken. At least 0.125” (3mm) should be maintained between the epoxy seal and any lead bends. The…

23. Стр. 23 Definition of Terms

    Maximum Open Temperature or Rated Functioning Temperature (Tf or TF) The maximum temperature at which the thermal fuse changes its state of conductivity to open circuit with detection current as the only load. The rated functioning temperature is measured during a temperature rise of approximately…

24. Стр. 24 Important Notice

    Users must determine the suitability of the thermal fuse for their application, including the level of reliability required, and are solely responsible for the function of the end-use product. These thermal fuses contain exposed electrical components and are not intended to withstand exposure to…

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