Datasheet > G7FA0900TTTC

G7FA0900TTTC

更新时间： 2022-02-26 13:25:05

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MICROTEMP Thermal Cutoffs INTRODUCTION

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G7FA0900TTTC 数据手册

MICROTEMP^®Thermal Cutoffs:

INTRODUCTION

Upper Limit Temperature Protection

MICROTEMP^®thermal cutoffs from Therm-O-Disc offer an accurate, reliable solution to the need

for upper limit temperature protection. Known as a thermal fuse, thermal link, or TCO, the

MICROTEMP^®thermal cutoff provides protection against overheating by interrupting an electrical

circuit when operating temperatures exceed the rated temperature of the cutoff.

MICROTEMP^®Features:

•

One-shot operation cuts off electrical power

Current interrupt capacity up to 25 amps @ 250VAC

Low resistance

Compact size

Operating Principle of the MICROTEMP^®TCO

The active trigger mechanism of the thermal cutoff 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 (see

figures 1 and 2).

After a MICROTEMP^®thermal cutoff opens a circuit, the TCO needs to be replaced. This

replacement procedure must include correction of the fault condition before the product is

operated again.

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