G7 系列 MICROTEMP® 热熔断器旨在满足需要不需要最大电流中断能力的小型化组件的应用。G7 的尺寸仅为 G4 和 G5 的 2/3,具有 250VAC 时 5 安培(24VDC 时为 5 安培)的电流中断能力,可满足变压器、电机、电池组、离合器线圈和电子电路应用。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 range of packages, mountings and design configurations on the market today. MICROTEMP Features: • Globally certified temperatures and electrical loads • One-shot operation cuts off electrical power • Current interruption capacity up to 25 amps @ 250VAC • Low resistance • Compact size • RoHS compliant Operating Principle The active trigger mechanism of the thermal fuse is an exclusively formulated, electrically nonconductive pellet. Under normal operating temperatures, the solid pellet holds spring loaded contacts closed. When a predetermined temperature is reached, the pellet melts, allowing the compression spring to relax. The trip spring then slides the contact away from the lead and the circuit is opened. After the thermal fuse opens a circuit, the fuse needs to be replaced. This replacement procedure must include correction of the fault condition before the product is operated again. G4 G5 Z6 G6 G7 G8 S9 Typical Resistive Rating at 250VAC 10A 20A 16A Higher Tm Than G6 16A More Temperature Ratings Than Z6 5A 25A 15A Details found on page 3 5 7 See pages 14-15G4 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 currents up to 10 amps @ 250VAC. Benefits Features Applications • The industry standard for over-temperature protection • Available in a wide range of temperatures to offer design flexibility in your application • Available in mounted and packaged designs • One shot operation cuts off electrical power • 10A/250VAC, 15A/120VAC, 5A/24VDC • Low Resistance • Compact size • Portable Appliance • Major Appliance • HVAC • Power Supplies • Water Heater • Other