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Littelfuse Solar Products Catalog

Littelfuse Solar Products Catalog

Product catalog summary

Overview: This document is a comprehensive catalog of Littelfuse, Inc.'s solar products, focusing on overvoltage protection, protection relays, in-line fuses, and surge protection devices. It details specifications for products rated at 1500 V, 1000 V, and 600 V, designed for photovoltaic (PV) applications.

1500 V Rated Products:

SPXV Series Solar Fuse: Suitable for 1-30 A applications, with a 1500 V dc rating and interrupting ratings of 15 kA (UL 248-19) and 50 kA (self-certified). Features a melamine body and nickel-plated copper alloy caps.
SPXI Series In-Line Solar Fuses: For 2.5-30 A applications, these integrate into wire harnesses, meeting UL 248-19 standards, and do not require a fuse holder.
SPNH Series Solar Fuse: Designed for 50-400 A applications, providing full range protection for PV systems, meeting UL and IEC standards.
LFPXV Touch-Safe Fuse Holders: Designed for 1500 V, 30 A applications, offering a finger-safe design and are DIN-rail mountable.

1000 V Rated Products: Includes SPFJ High Amperage Fuses, SPF String Fuses, SPFI In-Line Fuses, and LFJ1000 Open-Face Fuse Blocks, each with specific applications and specifications.

600 V Rated Products: Features LPHV Touch-Safe Fuse Holders, Bus Bar Systems, and KLKD Midget Fuses, designed for lower voltage applications.

Overvoltage & Switching Electronic Products: Includes IGBT Power Modules, Transient Voltage Suppression Diodes, and Overvoltage Suppression Varistors, each protecting electronic systems.

Protection Relay Products: Highlights the SE-601 Ground-Fault Monitor and EL731 Sensitive Earth-Leakage Relay for monitoring and protecting against ground faults and earth leakages.

Surge Protection Device Products: The SPD2 PV Series Surge Protection Device protects against voltage surges in photovoltaic systems.

Specifications:

Flammability Rating: UL94 V-0
Temperature Stability: Body: 130 °C, Carrier: 140 °C
Voltage Rating: 1500 V dc for LFNH series, 1000 V dc for SPFJ and SPF series
Ampere Rating: 200, 400, 630 A for LFNH series; 70-450 A for SPFJ series; 1-30 A for SPF series
Interrupt Rating: 30 kA for LFNH series; varies for SPFJ and SPF series
Material: Silver-plated copper, zinc-plated steel, ceramic insulator for LFNH series; melamine body, copper alloy caps for SPF series
Environmental Compliance: RoHS compliant, Lead (Pb) free, REACH compliant

Approvals:

UL 4248-19 Listed, IEC 60269-6 for LFNH series
UL 248-19, UL 248-8, Class J, cULus, IEC 60269-6 for SPFJ series
UL 248-19, IEC 60269-6, CSA Certified for SPF series

Features and Benefits:

LFNH series offers narrow width for space savings and a range of amperages to match SPNH fuse options.
SPFJ series is the smallest 1000 V dc photovoltaic fuse available, offering flexibility in mounting and meeting UL and IEC standards.
SPF series is designed for photovoltaic system protection, with midget-style fuses to protect modules and conductors from reverse-overcurrent conditions.

Applications:

Inverters
Re-combiner boxes

Ordering Information: Detailed ordering numbers and recommended torque specifications are provided for each product series.

Dimensions: Detailed dimensions are provided in both millimeters and inches for various components and configurations.

POWR-BLOKS Distribution Blocks: Used for splicing cables, providing junction tap-off points, or splitting primary power into secondary circuits. Features DIN-rail mounting and optional safety covers.

IGBT Modules: Offer high efficiency and fast switching speeds for power control applications, available in different packages with voltage ratings of 600/1200 V.

Transient Voltage Suppression (TVS) Diodes: Protect semiconductor components from high-voltage transients, available in surface mount and axial leaded configurations.

Overvoltage Suppression Varistors: Divert transient currents away from sensitive components, with MLVs for small electronics and MOVs for higher energy applications.

SE-601 Ground-Fault Relay: Provides ground-fault protection for ungrounded DC systems, with adjustable trip levels and time settings.

EL731 Earth-Leakage Relay: Offers protection for frequencies from 0 to 6,000 Hz, used for low-level ground-fault protection in variable-speed drives and DC circuits.

SPD2 PV Series: Surge protection devices protect equipment from transient overvoltage events in solar string box and inverter applications, available in 1100 and 1500 V DC configurations.

Conclusion: Littelfuse provides a comprehensive range of electrical components designed to enhance safety, efficiency, and reliability in various applications, particularly in solar and power distribution systems.

Catalog excerpts

Expertise Applied | Answers Delivered 1500 V DC PRODUCTS OVERVOLTAGE PROTECTION IN-LINE FUSES PROTECTION RELAYS SURGE PROTECTION

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SPNH Series Solar Fuse SPD2 PV Series Surge Protection Device LFNFH Series Fuse Terminal Cover SPXV Series Solar Fuse SPXI Series In-Line Solar Fuse LITTELFUSE STARTCO DC GROUND FAULT MONITOR SE-601 Series Dc Ground-Fault Monitor

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Solar Catalog

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®C€gPv |RoHS SPXV SERIES SOLAR FUSE1500V dc• 1 - 30 A Specifications Voltage Rating Amperage Rating Interrupting Rating Time Constant Material Approvals Environmental Country of Origin m Description The Littelfuse SPXV solar string fuse is designed specifically for 1-30 A 1500 V dc applications. Features/Benefits • 10 x 85 mm package size • UL 248-19 Listed • Meets IEC 60269-6 electrical performance requirements • 30,000 A interrupting rating Applications • Inverters • Combiner boxes Web Resources Download technical resources at: littelfuse.com/spxv For silver plated version: littelfuse.com/spxvs...

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Solar Products SPXI SERIES IN-LINE SOLAR FUSES 1500 V dc • 2.5-30 A Specifications Voltage Rating 1500 V dc Amperage Rating 2.5, 3.5, 4, 4.5 5, 6, 8, 10, 12, 15, 20, 25, 30 A Interrupting Ratings 15 kA (UL 248-19) 30 kA (Self-Certified) Time Constant ≤ 1 ms Material Body: Melamine Caps: Copper Alloy (Nickel Plated) Approvals UL 248-19 Recognized (File: E339112) Environmental RoHS Compliant REACH Country of Origin Mexico US Patent 9,564,281 Description The Littelfuse SPXI solar fuse is designed to integrate into an in-line assembly within a wire harness. The fuse series provides photovoltaic (PV)...

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SPNH SERIES SOLAR FUSE1500 V dc • 50-400 A • NH Style Specifications Voltage Rating Amperage Rating Interrupting Rating Time Constant Material Approvals Environmental Termination* Blank = Solid Blade DL = S Blade DE = U blade DLMS= S Blade w/ Microswitch tab DEMS = U Blade w/ Microswitch tab Case Size* X = 1XL size 2XL = 2XL size 3L = 3L size Description The SPNH series has been designed to meet the emerging circuit protection needs for 1500 volt photovoltaic (PV) systems. These fuses provide full range protection for all potential overcurrent conditions that exist in PV applications. Suitable...

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Solar Products SPNH SERIES SOLAR FUSE REVISION DESCRIPTION 516546GCP - RELEASE MRY 517431ECP/D - REMOVE DATA SHEET REVISION MRY DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATIO OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMEN AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALUE MUST BE WITHIN THE DIMENSIONAL LIMITATIONS SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENS BRACKETS...

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FUSE HOLDERS ®C€[§hs]® Specifications Voltage Ratings Amperage Rating SCCR Rating Power Dissipation Fuse Type Material Operating Temperature Flammability Rating Temperature Stability Approvals Environmental Recommended DIN Rail 1500Vdc 30 A UL, 32 A Littelfuse self-certified 50 kA 8W maximum 10 x 85 mm Thermoplastic Fuse Clip: Silver-plated copper alloy Screws: Zinc-plated steel -55 °C to +125 °C UL94 V-0 Body: 130 °C Carrier: 140 °C UL 4248-19 Listed (File: E345481) IEC 60269-6 RoHS compliant, Lead (Pb) free, REACH TH 35-7,5 per IEC 60715 Description The Littelfuse LFPXV fuse holder is designed...

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Solar Products LFPXV TOUCH-SAFE FUSE HOLDERS Dimensions Millimeters (in) UNLES BRACKET REVISION DESCRIPTION DRAWING FOR DATASHEET MRY Side View Front View DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS.

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Specifications Voltage Rating Ampere Rating Interrupt Rating Termination Type Base Temp Rating Approvals Environmental Material Description The LFNH series fuse block is specifically designed for the Littelfuse SPNH 1500 V solar fuse. It meets UL electrical requirements, is available in multiple case sizes and has an optional cover to enclose the lugs. Features/Benefits • Narrow width increases space savings • Range of amperages to match all SPNH fuse options 1500Vdc 200, 400, 630 A 30 kA Stud Mount UL4248-1 UL4248-19 FILE: E345481 Vol. 2 RoHS Compliant Fuse Clip: Silver-Plated Copper Spring:...

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Solar Products LFNH SERIES FUSE BLOCK Dimensions Millimeters (in) REVISION DESCRIPTION PRELIMINARY DRAWING M DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VA DENOTES A CHARACTERISTIC THAT PROVIDES OF PROCESS PERFORMANCE. PROCEDURE FOR AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALU MUST BE WITHIN THE DIMENSIONAL LIMITATI SHOWN ON DRAWING AND INITIALLY LOCATE ALLOW FOR MAXIMUM TOOL LIFE. MATERIAL: FUSE CLIP: SILVER PLATED COPPER SPRING: ZINC PLATED STEEL MOUNTING PLATE: ZINC PLATED STEEL INSULATOR: CERAMIC RECOMMENDED...

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Solar Products LFNH SERIES FUSE BLOCK Dimensions Millimeters (in) REVISION DESCRIPTION PRELIMINARY DRAWING MRY DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALU DENOTES A CHARACTERISTIC THAT PROVIDES AN OF PROCESS PERFORMANCE. PROCEDURE FOR ME AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALUE MUST BE WITHIN THE DIMENSIONAL LIMITATION SHOWN ON DRAWING AND INITIALLY LOCATED T ALLOW FOR MAXIMUM TOOL LIFE. MATERIAL: FUSE CLIP: SILVER PLATED COPPER SPRING: ZINC PLATED STEEL MOUNTING PLATE: ZINC PLATED STEEL INSULATOR:...

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Solar Products LFNH SERIES FUSE BLOCK Dimensions Millimeters (in) REVISION DESCRIPTION PRELIMINARY DRAWING DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK DENOTES A CHARACTERISTIC THAT PROVIDE OF PROCESS PERFORMANCE. PROCEDURE FO AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VA MUST BE WITHIN THE DIMENSIONAL LIMITA SHOWN ON DRAWING AND INITIALLY LOCAT ALLOW FOR MAXIMUM TOOL LIFE. MATERIAL: FUSE CLIP: SILVER PLATED COPPER SPRING: ZINC PLATED STEEL MOUNTING PLATE: ZINC PLATED STEEL INSULATOR: CERAMIC RECOMMENDED TORQUE:...

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Littelfuse Solar Products Catalog

Littelfuse Solar Products Catalog

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