RS PRO Glass Cartridge Fuse 1.25A T 250V 5 x 20 mm Slow Blow Low Breaking Capacity 563-548

RS PRO 563-548 Glass Cartridge Fuse is a quality electrical component designed for reliable protection against overcurrent and short circuits. The fuse features a glass body construction, making it straightforward to visually check for a blown element when servicing or troubleshooting. With a rated current of 1.25A, this cartridge fuse supports essential circuit protection in various devices. Its 5 x 20 mm standard size enables easy integration into boards, panels, and compatible fuse holders.

Slow-blow, or T speed rating, allows this fuse to tolerate higher currents for brief moments, making it suitable for equipment with high inrush currents such as motors, pumps, and compressors. Rather than blowing instantly at the first surge, the time-delay functionality lets the circuit operate normally under short surges, only interrupting sustained overcurrent, thus reducing nuisance trips.

Constructed from glass material, this cartridge fuse is not only durable but also offers transparency for post-failure inspection. The low breaking capacity construction is suited to environments where fault currents are modest and ensures safe disconnection without explosive rupture. Its anti-surge capability further enhances application safety, making it ideal for industrial, commercial, residential, and automotive areas where reliable circuit protection is critical.

The fuse operates at rated voltages up to 250V AC and can function in challenging temperature conditions from -55°C up to 125°C. Certifications including CSA, UL, RoHS, and VDE provide assurance of quality and compliance. Applications span electrical boards, panel protection, air conditioning units, refrigerators, automotive accessories, as well as sensitive lab and office electronic equipment.

Replace the fuse with a same-rated variant after operation. Inspect glass fuses for visible wire breaks or residue before replacement. This product is a dependable solution for board-level protection or any application requiring precise and safe circuit interruption.

Glass cartridge build for easy inspection and robust performance. Time-delay (T) slow-blow action for high inrush insensitivity. Standard 5 x 20 mm size ensures wide compatibility and straightforward installation. Suited for industrial, commercial, home, and automotive environments.

Certifications for global application and trusted quality assurance.

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