170M6240

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The power supply system of a power system is one of the most important safety equipment. It is an indispensable part of the whole power system. The safety of the power system is largely guaranteed by the application of various fuses. One of the commonly used automotive fuses is the 170M6240.

170M6240 is an American standard automotive fuse. It is a fast-acting fused link, whose fusing time is less than 10ms, which has strong anti-interference ability. The rated voltage of 170M6240 should not exceed 32V, and its current range can reach 4A-40A. It is suitable for outdoor automotive and other medium voltage installations. It is mainly used for protection of electric circuits against overload, short circuit and overvoltage.

The working principle of 170M6240 is shown in the figure. The fuse wire consists of three parts: a copper core, a heat-resistant insulation material and a protective shell. When the circuit current is too large, the fuse element will heat up, melt, and split, become disconnected, and remove the excessive current from the circuit, thus achieving the purpose of protecting the circuit. When the excess current disappears, the fuse element can be reconnected without having to be replaced.

170M6240 is widely used in the fields of automobiles, motorcycles, generators, outdoor lighting, and household electrical appliances. In the automotive electrical systems, such as automotive audio, automotive relays, signal lamps, power outlets, car alarms, and other systems, when circuit failure occurs, 170M6240 will automatically discharge the large current to protect the circuit. In industrial control systems, when the circuit current is too large due to motor overload or short circuit, the 170M6240 will start quickly to prevent serious damage to relays, capacitors and other components in the circuit.

In conclusion, the 170M6240 is a fast-acting fuse widely used in automobile, motorcycle, generator, outdoor lighting, and household electrical appliances for protection of electric circuits against overload, short circuit and overvoltage. Its rated voltage should not exceed 32V, and the current range can reach 4A-40A. Its working principle is that when the circuit current is too large, the fuse element will heat up, melt, and split, become disconnected, and remove the excessive current from the circuit.

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