Zenode.ai Logo
Beta
SPFJ300.X
Circuit Protection

SPFJ300.X

Active
Littelfuse/Commercial Vehicle Products

300A 1000VDC PHOTOVOLTAIC CLASS J FUSE/ BOX

Deep-Dive with AI

Search across all available documentation for this part.

SPFJ300.X
Circuit Protection

SPFJ300.X

Active
Littelfuse/Commercial Vehicle Products

300A 1000VDC PHOTOVOLTAIC CLASS J FUSE/ BOX

Technical Specifications

Parameters and characteristics for this part

SpecificationSPFJ300.X
ApplicationsSolar (Photovoltaic)
Approval AgencyCE, cULus, UL, VDE
Breaking Capacity @ Rated Voltage10 kA, 200 kA
ClassJ
Current Rating (Amps)300 A
DC Cold Resistance0.367 mOhms
Fuse TypeCartridge
Melting I˛t59201
Mounting TypeRequires Holder
Package / CaseCylindrical, Blade Terminals
Response TimeFast Blow
Size / Dimension [diameter]2 in
Size / Dimension [diameter]50.8 mm
Size / Dimension [x]7.126 "
Size / Dimension [x]181 mm
Voltage Rating - AC600 VAC
Voltage Rating - DC1 kVDC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyBulk 1$ 290.88
5$ 274.72
10$ 242.40
NewarkEach 1$ 228.80
5$ 225.60
10$ 222.40
25$ 209.60

Description

General part information

SPFJ300 Series

Unique Offering The SPFJ DC full range fuses are the first fuse in the electrical industry to be UL248-19 Listed and designed to protect photovoltaic (PV) applications at 1000 VDC and 70-450 A. SPFJ series fuses are suitable for DC cable protection and are used in EV off-boarding charging station applications. SPFJ series is manufactured in Class J case size that allows for both fuse holder and bus-bar mounting configurations. The SPFJ meets both UL branch circuit protection and IEC requirements. Agency Approvals The SPFJ is UL248-19 Listed, designed and manufactured in accordance with IEC Standard 60269-6. These rigorous standards ensure the safety of both equipment and personnel and make the SPFJ a truly global product. Small Footprint and Multiple Mounting Options The 125-450 amperages are offered in Class J case sizes, allowing significant space savings opportunities for OEMs, which can help significantly reduce costs. Customers can either mount the SPFJ solar fuses to a busbar or any three specifically designed 1000 VDC holder options to match their unique applications. For more information on the fuse holders visit www.Littelfuse.com/lfj1000