Littelfuse 0239.250MXP - 0239 SLO-BLO GLS BODY FUSE M-PACK .250A. 5x20mm time-Lag glass body cartridge fuse designed to JL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
Littelfuse

0239.250MXP

UPC: 079458909296


Documents & Media
BrochureTechnical BulletinSpecification Sheet

Contact for Pricing

Minimum Qty: 1000

Multiplier: 1000

*Contact for lower quantities*

Overview

The Littelfuse 0239 SLO-BLO Glass Body Cartridge Fuse (SKU: 0239.250MXP) is engineered to provide robust and reliable overcurrent protection for a wide range of sensitive electronic and industrial applications. Designed to meet stringent UL/CSA/ANCE 248 standards, this fuse offers precision circuit safeguarding, ensuring the longevity and optimal performance of critical equipment. Its time-lag characteristic is crucial for applications where temporary inrush currents are expected, preventing nuisance tripping while still offering effective protection against sustained overloads and short circuits. The 5x20mm glass body construction of the 0239 SLO-BLO fuse facilitates excellent thermal management and visual inspection, allowing technicians to quickly identify a blown fuse. This design is a standard in many electronic enclosures and power supplies, making it a versatile choice for original equipment manufacturers (OEMs) and maintenance professionals alike. The Littelfuse brand is synonymous with quality and reliability in the protection device industry, and this fuse upholds that reputation with its consistent performance and adherence to international safety regulations. Key features and benefits include: * **Time-Lag Protection:** Ideal for circuits with expected inrush currents, preventing premature fuse failure. * **UL/CSA/ANCE 248 Compliance:** Meets rigorous safety and performance standards for global acceptance. * **Glass Body Construction:** Offers durability, thermal stability, and easy visual inspection. * **0.250A Current Rating:** Precisely suited for low-current sensitive electronics and control circuits. * **5x20mm Cartridge Size:** A widely adopted standard for compatibility with numerous fuse holders and equipment. * **RoHS Compliant and Lead-Free:** Adheres to environmental regulations, promoting safer manufacturing and disposal practices. This Littelfuse fuse is an indispensable component in sectors such as industrial automation, telecommunications, medical devices, consumer electronics, and automotive systems. Its ability to protect delicate components from damaging current surges makes it a vital element in maintaining operational integrity and preventing costly downtime. Whether used in power supplies, control boards, or specialized instrumentation, the 0239 SLO-BLO fuse delivers the dependable protection that professionals demand. Trust Littelfuse for your critical circuit protection needs, ensuring safety, reliability, and compliance with the 0239.250MXP time-lag glass cartridge fuse.
  • Littelfuse 0239 SLO-BLO 0.250A time-lag glass cartridge fuse
  • Designed to UL/CSA/ANCE 248 standards for assured performance
  • 5x20mm cartridge size for broad equipment compatibility
  • RoHS compliant and lead-free for environmental responsibility
  • Ideal for sensitive electronic circuits requiring precise overcurrent protection

Specifications

Application
electronic equipment & appliances
Brand Name
Littelfuse
Current Rating
0.250 A
Material
Glass
Mounting Type
Cartridge, Axial Lead
Series
M-PACK
Size
5x20mm
Special Features
Slo-Blo
Standard
UL/CSA/ANCE 248 Standard
Sub Brand
239 Series
Type
5 x 20 mm UL/CSA Slo-Blo
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 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.