520 Series Metric OMNI-BLOK® Fuse Blocks

Littelfuse 520 Series Metric OMNI-BLOK® Fuse Blocks are low-profile designs available with a choice of solder-type terminals, NEMA-style QC terminals, or PC board mountable terminals. These fuse block designs consist of tin-plated brass terminals. The 520 series fuse blocks provide self-alignment of the clips to the fuse caps. These fuse blocks feature a one-piece clip/terminal and an anti-one-piece clip/terminal design, which assures low contact resistance. The 520 series fuse blocks incorporate 1500V minimum dielectric strength. These fuse blocks come in 5mm × 20mm size. The 520 series fuse blocks feature UL 94V-0 flammability rating and are RoHS compliant.

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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Fuse Size/Group
Type
Mounting Style
Number of Poles
Current Rating
Voltage Rating
Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Fuse Holder Fuse Block 5x20mm 20A 600 VDC/VAC, Q.C. NEMA .110", Green 488In Stock
Min.: 1
Mult.: 1

520 Fuse Blocks PCB Mount 20 A 600 VAC/600 VDC Bulk
Littelfuse Fuse Holder Fuse Block 5x20mm 20A 600 VDC/VAC, Solder, Green 484In Stock
Min.: 1
Mult.: 1

520 Fuse Blocks PCB Mount 20 A 600 VAC/600 VDC Bulk
Littelfuse Fuse Holder Fuse Block 5x20mm 20A 600 VDC/VAC, Q.C. NEMA .110", Blue 437In Stock
Min.: 1
Mult.: 1

520 Fuse Blocks PCB Mount 20 A 600 VAC/600 VDC Bulk
Littelfuse Fuse Holder 5x20mm QC Term
Datasheet
4,245In Stock
Min.: 1
Mult.: 1

520 Fuse Blocks 5 mm x 20 mm Low Profile Panel Mount 1 Pole 10 A 600 V Quick Connect - 40 C + 85 C Bulk


Littelfuse Fuse Holder 5x20mm PCB Mount
Datasheet
8,817In Stock
35,133On Order
Min.: 1
Mult.: 1

520 Fuse Blocks 5 mm x 20 mm Low Profile PCB Mount 1 Pole 10 A 600 V PC Pin - 40 C + 85 C Bulk
Littelfuse Fuse Holder 5x20mm QC Term
Datasheet
152In Stock
Min.: 1
Mult.: 1

520 Fuse Blocks 5 mm x 20 mm Low Profile Panel Mount 1 Pole 10 A 600 V Quick Connect - 40 C + 85 C Bulk
Littelfuse Fuse Holder 5x20mm Sldr Termo
Datasheet
7,997Expected 12/10/2026
Min.: 1
Mult.: 1

520 Fuse Blocks 5 mm x 20 mm Low Profile Panel Mount 1 Pole 10 A 600 V Solder Lug - 40 C + 85 C Bulk