SPP-4H80

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The SPP-4H80 is an electrical fuse with a range of specialized applications. It is capable of providing reliable, safe, and effective protection against overcurrent conditions in both AC and DC circuits. The SPP-4H80 uses a special self-resetting bimetallic coil to create a rapid response to overcurrent conditions, and can be used in a variety of industrial, household, and automotive electrical systems.

The SPP-4H80 has a rated current range of 10-80A. It is designed to operate at a nominal voltage of 250V AC or 32V DC, and provides protection for up to 160V DC or 400V AC. The fuse is UL Recognized and CSA Certified as per UL 248-14 with an ampacity of 80A.

The internal construction of the SPP-4H80 consists of a fuse element, a support plate, a seal, and a cylindrical terminal. The internal components are sealed together in an anodized aluminum body to ensure that no gas or liquid can enter the fuse. The fuse element is mounted on the support plate and consists of a thin strip of bimetallic material that is connected to two rivets. The rivets then attach to the fuse body, forming a secure connection.

The working principle of the SPP-4H80 is based on the self-resetting bimetallic coil that it uses. When there is an overcurrent condition in the circuit, the self-resetting bimetallic coil rapidly changes its shape as it heats up from the amplified current. This causes a force to be applied on the contact points of the fuse, which then trips the fuse. This allows the current to be quickly and safely cleared from the circuit, and the fuse is then reset.

The SPP-4H80 is suitable for a variety of applications, including protection of motors, transformers, and other AC or DC circuits. It can also be used for isolation in switchboards and consumer units, and as a circuit breaker 2 pole in domestic applications. The SPP-4H80 has a low internal resistance and is a reliable and cost-effective option for circuit protection.

Conclusion

The SPP-4H80 is an electrical fuse with a range of specialized applications. It uses a self-resetting bimetallic coil to provide rapid protection against overcurrent conditions in AC and DC circuits. The fuse is UL Recognized and CSA Certified and is suitable for use in a variety of industrial, household, and automotive electrical systems. Its low internal resistance and cost-effectiveness make it a reliable option for circuit protection.

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