Cylindrical fuse link AM 20 A 10.3 x 38 HPC 013020

Professional motor protection - cylindrical fuse link AM

The AM 20 A cylindrical fuse link is a specialized protective component designed primarily for protecting motor circuits against short circuits. Thanks to its aM category characteristics according to the IEC 60269 standard, the device reacts to specific load currents, providing effective protection for electrical installations with motors.

Operating parameters and characteristics

The standard 10×38 mm size ensures that the fuse link fits commonly used DIN rail cartridge fuses. The rated current of 20 A and the operating voltage of 400 V AC/DC allow for application in most standard industrial and commercial installations.

The ceramic construction provides high thermal and mechanical resistance, which is crucial for extinguishing the electric arc during tripping. Power loss at the rated current is 2.4 W, demonstrating the device's energy efficiency.

Application in installation practice

The aM (motor short-circuit protection) characteristic means that the fuse link does not react to short-term current surges occurring during motor startup - like most fuses in this class. At the same time, it effectively interrupts the circuit in the event of a short circuit, protecting the installation from serious damage.

The absence of an operation indicator means that replacement occurs based on a circuit continuity test or preventive replacement according to a maintenance schedule.

Compliance and compatibility

The device meets the requirements of the IEC 60269 standard, which guarantees international compliance and the possibility of use in various electrical installation systems. The ceramic insulating material ensures parameter stability across a wide range of operating temperatures.

Standard dimensions of 10×38 mm allow for mounting in typical fuse holders and on DIN rails using appropriate mounting adapters available separately.