Littelfuse.com/SPF

© 2021 Littelfuse, Inc.

Rev: 113021

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SPF SERIES SOLAR FUSES

1000 V dc • 1–30 A

Description

The SPF Solar Protection Fuse series has been specifically

designed for the protection of photovoltaic (PV) systems.

This family of midget-style fuses (10 x 38 mm) can safely

protect PV modules and conductors from reverse-

overcurrent conditions.

As PV systems have grown in size, so have the

corresponding voltage requirements. This increase in

system voltage has typically been intended to minimize

power loss associated with long conductor runs. Standard

circuit protection devices are not designed to completely

protect photovoltaic panels. However, the SPF series is

UL Listed to safely interrupt faulted circuits up to this

demanding voltage level.

Littelfuse offers multiple ampere ratings to match specific

requirements in a variety of applications.

Features/Benefits



Full range, fast-acting fuse helps eliminate common low-

overload faults



Prevents power generation losses due to nuisance

tripping from changes in temperature



Both PCB mount and dead-front holder options available

Applications



Inverters



Combiner boxes



Battery charge controllers

Recommended Accessories

Fuse Holder: LPHV 1000 V dc POWR-Safe Series

Fuse Clips: 125004/125005

Web Resources

Download technical documents: Littelfuse.com/SPF

Specifications

Voltage Rating

1000 V dc

Amperage Rating

1, 2, 3, 3.5, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30

Max. Interrupting Rating

20 kA - 1 A - 20 A

50 kA - 25 A - 30 A

Time Constant

≤ 2ms

Material

Body: Melamine

Caps: Copper Alloy

Approvals

UL Listed (File: E339112)

CSA Certified (File: 029862_0_000)

TUV (Cert: J 50494849)

Applicable Standards

UL 248-1, 248-19

IEC 60269-6

Environmental

RoHS Compliant

Country of Origin

Mexico

Part Numbering System

0SPF xxxx H XR

Package Quantity

Series

Mounting Options

Amp Code

T = 10 Fuses

H = 100 Fuses

Refer to Ordering

Information table

Blank = Ferrule

XR = PCB

Dimensions Inches (mm)

Ferrule Version

PCB Version

0.06 REF

(1.524)

0.140 REF

(3.56)

0.012 REF

(0.292)

1.570 MAX

(39.88)

1.490 MIN

(37.84)

1.570

(39.88) MAX

1.490

(37.84) MIN

0.50 REF

(12.70)

MOUNTING HOLE

DETAIL

1.5 (38.1)

.406

(10.31)

.378

(9.60)

±.031

(±.79)

Look for this logo to indicate products that are used in solar applications. Visit our website

littelfuse.com/solar for the latest updates on approvals, certifications, and new products.

REACH