Littelfuse PSX1XLDB0100 - POWR-SPEED SQB SIZE 1XL DIN BL 100A. Littelfuse PSX series 1500 V dc high-speed square bodyfuses are specially designed to protect battery energy storage systems (BESS), photovoltaic inverters, and many of dc applications such as dc common bus systems, larger industrial regenerative drives, rectifiers and, metal processing equipment. The PSX series fuses are extremely fast-acting, offering high-speed performance up to 1500 V dc, ranging from 80 A to 1400 A in the smallest NH XL package sizes. The PSX series is available with multiple mounting terminations including flush-end style, DIN-style and bolted-blade style. Visual blown fuse indication is standard on all fuses and optional micro-switch is available for external indication. PSX series are certified to UL 248-13 and designed to meet EN high-speed semiconductor fuse standard and IEC 60269-7, a new battery protection fuse standard in development.
Littelfuse

PSX1XLDB0100

Alternate Item Number: PSX1XLDB0100X

UPC: 079458263213

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Overview

The Littelfuse PSX1XLDB0100, SKU PSX1XLDB0100, represents a pinnacle of high-speed DC protection technology, specifically engineered for the most demanding industrial and renewable energy applications. As a critical component within the Littelfuse PSX series, this 100A, 1500V DC square body fuse is designed to safeguard sensitive and high-power DC systems with unparalleled speed and reliability. Its primary function is to provide ultra-fast acting protection against overcurrents and short circuits, crucial for preventing catastrophic damage in systems where rapid fault clearing is paramount. This fuse is exceptionally well-suited for protecting Battery Energy Storage Systems (BESS), a rapidly growing sector requiring robust and fast-acting DC protection to ensure grid stability and safety. Furthermore, it is an ideal solution for photovoltaic (PV) inverters, where efficient and reliable energy conversion depends on the integrity of the DC side. Beyond renewable energy, the PSX1XLDB0100 finds extensive use in various industrial DC applications, including DC common bus systems, large industrial regenerative drives that handle significant power fluctuations, rectifiers used in heavy industry, and metal processing equipment where high currents and potential fault conditions are common. The PSX series, including the PSX1XLDB0100, is characterized by its high-speed performance, capable of interrupting faults at extremely high voltages up to 1500 V DC. Available in current ratings from 80A to 1400A, these fuses are housed in the compact and efficient NH XL package size, offering significant space savings without compromising on protection capabilities. The PSX1XLDB0100 features a DIN-style mounting termination, a common and robust mounting solution in industrial settings, ensuring secure and reliable installation. However, the PSX series also offers versatility with other mounting options, including flush-end style and bolted-blade style, allowing for integration into a wide array of equipment designs and configurations. Safety and operational awareness are further enhanced by the standard visual blown fuse indication, providing immediate visual confirmation of a fault. For automated systems and remote monitoring, an optional micro-switch is available, enabling external indication of fuse status. This dual indication capability is vital for proactive maintenance and minimizing downtime. Littelfuse's commitment to quality and safety is underscored by the PSX series' certifications. These fuses are certified to UL 248-13, a stringent standard for high-speed semiconductor fuses. They are also designed to meet EN high-speed semiconductor fuse standards and the emerging IEC 60269-7 standard, specifically developed for battery protection. This adherence to multiple international standards ensures that the PSX1XLDB0100 meets the highest levels of safety and performance required by global industries. Key features and benefits of the Littelfuse PSX1XLDB0100 include: * **Ultra-Fast DC Protection:** Engineered for rapid fault interruption, safeguarding critical DC systems. * **High Voltage Capability:** Rated for 1500 V DC, suitable for high-power applications. * **Compact 1XL Package:** Offers significant space savings in equipment design. * **Versatile Mounting Options:** Available in DIN-style, flush-end, and bolted-blade terminations for broad compatibility. * **Comprehensive Certifications:** Meets UL 248-13, EN, and IEC 60269-7 standards for assured safety and performance. * **Enhanced Indication:** Standard visual blown fuse indication with optional micro-switch for external signaling. When selecting protection for high-value DC assets like BESS, PV inverters, or complex industrial drives, the Littelfuse PSX1XLDB0100 provides the advanced protection, reliability, and compliance that professionals demand. Trust Littelfuse, a recognized leader in circuit protection, for your most critical DC applications.
  • Littelfuse PSX series 1500 V DC high-speed square body fuse
  • 100A current rating in a compact 1XL package size
  • Designed for Battery Energy Storage Systems (BESS) and photovoltaic inverters
  • Suitable for DC common bus, industrial regenerative drives, and metal processing equipment
  • DIN-style mounting with visual blown fuse indication (optional micro-switch available)

Specifications

Amperage Rating
100 A
Brand Name
Littelfuse
Case Size
NH 1XL
Connection Type
DIN-style
Current Rating
100 A
Interrupting Rating
133 kA @ 1500 Vdc
Mounting Type
DIN-style
Response Time
Very Fast-Acting (FF)
Series
PSX
Size
1XL
Sub Brand
POWR-SPEED® Fuse
Type
Square Body Fuse
Voltage Rating
1500 V
Watts loss at 100% rated current
19.1 W
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.