G5 微型温度保险丝

  G5 系列 MICROTEMP® 热熔断器设计用于比 G4 更高的电压和电流应用，其额定工作电流在 250VAC 和 277 VAC（120VAC 时 25 安培）下工作电流高达 20 安培。G5 系列在外观上与 G4 系列相似，但内部结构不同，专为中断更高的电流和承受更高的温度而设计。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 14-15 Application Notes - Page 16 Mountings & Configurations - Page 9 NOTE: The terms thermal fuse, thermal cutoff, thermal link, and TCO are synonymous and may be used interchangeably throughout the catalog.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 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 •Operating Temperature Summary Tf°C Th°C Tm°C 072 57 100 073 58 100 077 62 300 084 69 220 091 76 300 093 78 300 098 83 300 104 89 200 110 95 240 117 102 240 121 106 300 128 113 205 134 119 205 141 126 205 144 129 300 152 137 205 158 143 240 167 152 210 172 157 310 184 169 240 190 175 350 192 177 210 205 190 310 216 200 450 229 200 450 240 200 450 257 220 470 Tf = Functioning open temperature +0/-50 C Th = Maximum temperature of the thermal fuse, measured at the case end, at which the thermal fuse can be maintained for a period of at least 168 hours without opening Tm = Maximum overshoot temperature. Temperature up to which the open thermal fuse will not change state GG5 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 than other models. Benefits Features Applications • Designed for higher voltage and current applications • 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 • 20A/250VAC, 20A/277VAC, 25A/120VAC • High Overshoot Temperature Tm • Compact Size • Portable Appliance • Major Appliance • HVAC • Power Supplies • Automotive • Water Heater • Other