ABB CMF 7.2KV/63A CMF type Fuse link high-voltage backup fuses

ABB CMF 7.2KV/63A is a high-voltage current-limiting backup fuse, mainly used for the protection of motor circuits in 7.2kV power systems. The following is a detailed introduction:

Basic information

Model meaning: "CMF" means that the fuse is a motor circuit protection type; "7.2KV" means that its rated voltage is 7.2 kilovolts, indicating that the fuse is suitable for 7.2kV power systems; "63A" is the rated current, that is, the current allowed to pass through the fuse when it works normally for a long time is 63 amperes.

Design standard: Designed and type tested according to IEC60282-1 standard, which ensures that the product quality and performance meet international specifications and can be used well with other electrical equipment that meets relevant standards.

Product size: Usually about 442mm in length and 87mm in diameter.

Performance characteristics

Protection characteristics: Designed to protect motor circuits from the thermal and dynamic effects of short-circuit currents. Through special design, it can withstand the typical cyclic loads in motor applications. With its robust design and compliance with the latest IEC standards, it can ensure continuous protection and reliable operation of the motor circuit.

Environmental adaptability: The standard version has an outdoor sealed design, which allows it to work stably in indoor environments and adapt to various harsh outdoor conditions such as high temperature, humidity, dust and other environments.

Functional configuration: Equipped with an 80N (medium) striker, when the fuse melts due to faults such as overload or short circuit, the striker will act, giving obvious indications, so that maintenance personnel can promptly find out whether the fuse has been actuated, so as to carry out timely maintenance and replacement. In addition, a temperature control unit can be optionally equipped to provide additional thermal stress protection for fuses in small spaces to prevent failures due to overheating, further improving the safety and reliability of fuse operation.

Application scenarios: In the industrial field, it is widely used in various motor drive equipment with a rated voltage of 7.2kV, such as small fans and water pump motors in factories, some auxiliary equipment motors in mines, and various production equipment with high requirements for motor protection. It can provide reliable short-circuit protection for motor circuits and ensure the safe and stable operation of the motor and the entire power system.