Littelfuse H218.315P - SLO-BLO GLASS BODY FUSE H-PACK .315A. 5x20mm Time-Lag glass body cartridge fuse designed to IEC specification. Features: Designed to International (IEC ) Standards for use globally Meets the IEC 60127-2, Sheet 3 specification for Time Lag fuses. Available in cartridge and axial lead form RoHS compliant and lead-free.
Littelfuse

H218.315P

Alternate Item Number: 0218.315HXP

UPC: 079458904444


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Overview

The **Littelfuse H218.315P SLO-BLO glass body fuse** is a high-performance, time-lag cartridge fuse engineered for reliable overcurrent protection in industrial, commercial, and consumer electronic applications. Designed to meet **IEC 60127-2, Sheet 3** specifications, this 0.315A fuse features a **5x20mm glass body** and is optimized for circuits with high inrush currents, such as motors, transformers, and power supplies. Its **time-lag characteristic** ensures delayed response to transient surges, preventing nuisance tripping while providing robust protection against sustained overloads. A hallmark of Littelfuse’s **SLO-BLO** series, the H218.315P fuse is built for global compliance and versatility. It is **RoHS compliant and lead-free**, meeting stringent environmental regulations while delivering consistent performance across diverse operating conditions. Available in both **cartridge and axial lead configurations**, this fuse is ideal for panel mount, PCB, and chassis installations, offering flexibility for engineers and technicians worldwide. **Key Applications & Industry Use Cases:** The H218.315P is widely deployed in: - **Industrial Automation:** Protecting PLCs, sensors, and control circuits from overcurrent events. - **Power Supplies & Converters:** Safeguarding sensitive electronics in SMPS, UPS systems, and battery chargers. - **Telecommunications:** Ensuring reliability in base stations, routers, and networking equipment. - **Automotive & EV Systems:** Providing protection in charging stations, battery management systems, and auxiliary circuits. - **Consumer Electronics:** Ideal for appliances, LED lighting, and smart home devices where space and performance are critical. **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse is a trusted name in industrial safety solutions. The **H218.315P** exemplifies the company’s commitment to quality, reliability, and compliance with international standards. Its **glass body construction** ensures visual inspection of fuse status, while the **time-lag design** balances fast response to faults with tolerance for temporary surges—a critical feature in applications like motor startups or capacitor charging. **Installation & Selection Considerations:** When specifying the H218.315P, professionals should evaluate: - **Current Rating (0.315A):** Matches the circuit’s nominal current to prevent false trips. - **Voltage Rating:** Ensure compatibility with system voltage (typically 250VAC/250VDC). - **Interrupting Rating:** Verify the fuse can handle fault currents in the application (e.g., 35A for IEC 60127-2). - **Mounting Options:** Cartridge fuses fit fuse holders, while axial leads allow direct PCB soldering. - **Environmental Conditions:** Glass bodies offer better heat dissipation and visibility than ceramic alternatives. Littelfuse’s global distribution network and technical support ensure seamless integration into any project. Whether for retrofitting legacy systems or designing new equipment, the **H218.315P SLO-BLO fuse** delivers the performance and peace of mind required in modern electrical protection schemes. Trust Littelfuse to safeguard your critical circuits with precision-engineered solutions.
  • IEC 60127-2, Sheet 3 compliant for global applications
  • 0.315A time-lag fuse with 5x20mm glass body
  • RoHS compliant and lead-free for environmental safety
  • Available in cartridge and axial lead configurations
  • Ideal for motors, transformers, and sensitive electronics

Specifications

Amperage Rating
.315 Amps
Application
supplementary protection in appliance or utilization equipment
Brand Name
Littelfuse
Current Rating
0.315 A
Material
Glass
Mounting Type
Cartridge, Axial Lead
Series
SLO-BLO
Size
5x20 mm
Special Features
Time-Delay
Standard
IEC 60127-2
Sub Brand
218 Series
Type
Time-Lag
Voltage Rating
250 VAC/250 VDC
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9F61 Size B Clips 1.6in

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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.