Littelfuse ESR3XLDB0315XDelete - The Littelfuse Energy Storage Rack (ESR) series of fuses is designed specifically to protect battery racks in energy storage systems, inverters, and many other dc applications. The 1500 V dc high-speed square body fuse is extremely fast-acting to respond quickly to a range of fault currents to safeguard the battery module or other devices. This Class aBat partial range fuse has superior short circuit protection and a low minimum breaking capacity (MBC)—from 300 % or 3 times the fuse’s rated current to 250 kA—to cover a range of over currents that traditional high-speed partial range fuses do not protect against. The ESR fuse safely interrupts most faults in a battery storage system to avoid catastrophic failures and costly shutdowns.
Littelfuse

ESR3XLDB0315XDelete

Alternate Item Number: ESR3XLDB0315XI

UPC: 079458381474


Documents & Media
Specification Sheet

Contact for Pricing

Overview

The Littelfuse ESR3XLDB0315XDelete is a high-speed square body fuse from the Energy Storage Rack (ESR) series, engineered to protect battery racks in energy storage systems, inverters, and other DC applications. This Class aBat partial range fuse delivers superior short-circuit protection with a low minimum breaking capacity (MBC) ranging from 300% or 3 times the fuse’s rated current up to 250 kA self-certified. Designed for 1500V DC systems, it ensures rapid response to fault currents, preventing catastrophic failures and costly shutdowns in battery energy storage systems (BESS), power conversion systems, DC common bus systems, and hybrid PV-BESS inverters. Key features include a high DC interrupting rating for scalable system protection without redesign, low watt loss for improved efficiency, and compliance with IEC 60269-7 battery standards. The compact NH 1XL size optimizes space in battery protection units (BPU) and battery racks. Optional blown-fuse indicators and external microswitch accessories enhance safety and reduce downtime by providing visual and remote fault indication. With a current rating of 125A, this fuse is ideal for protecting battery modules and other DC devices in demanding energy storage applications. The ESR series is part of Littelfuse’s POWR-SPEED® family, known for high-performance circuit protection. Its low MBC simplifies coordination with battery modules and reduces the size and rating of DC contactors, saving both space and costs. The fuse’s fast-acting response ensures minimal energy loss and maximizes system efficiency, making it a reliable choice for modern energy storage solutions.
  • 1500V DC high-speed square body fuse for energy storage systems
  • Class aBat partial range fuse with low minimum breaking capacity (300% to 250kA)
  • Compact NH 1XL size for space-saving installation
  • Conforms to IEC 60269-7 battery standard for evolving battery technologies
  • Optional blown-fuse indicator and external microswitch for enhanced safety
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 Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
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.

Frequently Asked Questions

What is the operating voltage range for this fuse?

The fuse is designed for 1500V DC applications, including battery energy storage systems and inverters.

Can this fuse be used in hybrid PV-BESS inverters?

Yes, the ESR3XLDB0315XDelete is suitable for hybrid PV-BESS inverters, battery energy storage systems, and DC common bus systems.

What is the current rating of the ESR3XLDB0315XDelete?

The current rating of the ESR3XLDB0315XDelete is 125A.

Is the ESR series part of a larger product family?

Yes, the ESR series is part of Littelfuse’s POWR-SPEED® family of high-performance circuit protection fuses.

What is the interrupting rating of the ESR3XLDB0315XDelete?

The ESR3XLDB0315XDelete has a self-certified interrupting rating of 250 kA, covering a range from 300% or 3 times the fuse’s rated current.

Does this fuse have any optional accessories?

Yes, the ESR3XLDB0315XDelete offers an optional blown-fuse internal indicator and an external microswitch for fault indication.

Does this fuse comply with any industry standards?

Yes, the ESR3XLDB0315XDelete conforms to the IEC 60269-7 battery standard, ensuring protection for evolving battery technologies.

What size is the ESR3XLDB0315XDelete fuse?

The ESR3XLDB0315XDelete is a compact NH 1XL size fuse, designed for space-saving installation in battery protection units.

What is the minimum breaking capacity (MBC) of this fuse?

The minimum breaking capacity ranges from 300% or 3 times the fuse’s rated current, making it suitable for a wide range of overcurrent conditions.

How does the low watt loss benefit the system?

The low watt loss of the ESR3XLDB0315XDelete maximizes efficiency by preventing energy loss and minimizing wasted power in components.

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.