Heat Pumps

Littelfuse provides a broad portfolio of components for heat pumps, including fuses, TVS diodes, gate drivers, and more. The heat pump market is growing quickly, driven by government initiatives to reduce greenhouse gas emissions and rising energy costs. With inverter-driven motors improving system efficiencies, heat pumps can now be used in a wide range of climates. Learn how Littelfuse technologies make heat pumps safer, more reliable, and more energy efficient. Heat pumps can be used in a wide range of climates due to the inverter-driven motors improving system efficiencies. These components are suitable for various applications such as energy management, security systems, HVAC systems, smoke detectors, and IoT-controlled appliances. Littelfuse offers protect, control, and sense technologies to improve buildings' reliability, safety, and energy efficiency.

Types of Fuses

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Results: 1.731
Select Image Part # Mfr. Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity. Qty. RoHS Product Type Fuse Size/Group Body Style Current Rating Voltage Rating AC Voltage Rating DC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 74In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A TL UL 98In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 125V 4A SLO-BLO 126In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 4 A 125 VAC
Littelfuse Cartridge Fuses 125V 4A TL UL 5In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 4 A 125 VAC
Littelfuse Cartridge Fuses 125V 4A 5x20mm Slo-Blo 15In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 4 A 125 VAC
Littelfuse Cartridge Fuses 125V 5A Slo-Blo 712In Stock
1.500On Order
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 5 A 125 VAC
Littelfuse Cartridge Fuses 125V 5A Slo-Blo 472In Stock
1.000Expected 27/03/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 5 A 125 VAC
Littelfuse Cartridge Fuses 125V 5A 5x20mm Slo-Blo 35In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 5 A 125 VAC
Littelfuse Cartridge Fuses 250V 1.6A C/Code Slo-Blo 799In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 1.6 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.6A Slo-Blo 1.764In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1.6 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.6A TL UL 60In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 1.6 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.56A 5x20mm Slo-Blo 15In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1.6 A 250 VAC
Littelfuse Cartridge Fuses 250V 2.5A Slo-Blo 332In Stock
700On Order
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2.5 A 250 VAC
Littelfuse Cartridge Fuses 250V 2.5A Slo-Blo 1.937In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2.5 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.5A 5X20 TL UL LBC CC 335In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2.5 A 250 VAC
Littelfuse Cartridge Fuses 250V 5X20 TL UL LBC RoHS 3.5A 499In Stock
1.000Expected 15/06/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3.5 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.25A Slo-Blo 106In Stock
200Expected 30/03/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.25A Slo-Blo 337In Stock
1.000Expected 11/06/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.25A TL UL 28In Stock
Min.: 1
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Slo-Blo 62In Stock
Min.: 1
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Slo-Blo 1.041In Stock
700Expected 24/03/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Slo-Blo 1.014In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A 5x20mm Slo-Blo 5In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 3.15 A 250 VAC
Littelfuse Automotive Fuses 32VDC 1A ATOF Nylon 2.872In Stock
Min.: 1
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Automotive Fuses ATO Sn 1 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 1A Low-Current Nylon 960In Stock
550Expected 06/03/2026
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 1 A 32 VDC