Littelfuse KLDR.187HXP - KLDR.187 is a Class CC fuse with an ampere rating of 0.187.
Littelfuse

KLDR.187HXP

Alternate Item Number: KLDR.187HXP

UPC: 079458792812


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Overview

The Littelfuse KLDR.187HXP Class CC fuse is a high-precision overcurrent protection solution engineered for industrial and electronic applications where reliability and accuracy are paramount. Designed with a 0.187 ampere (A) current rating, this fuse provides targeted circuit protection for sensitive components, preventing damage from transient overcurrents and sustained fault conditions. Class CC fuses are widely recognized in the industry for their compact form factor, fast-acting response, and high interrupting rating, making them ideal for modern power distribution systems where space constraints and performance demands are critical. Engineered by Littelfuse, a global leader in circuit protection solutions, the KLDR.187HXP leverages decades of innovation to deliver consistent performance across a broad range of operating environments. Its durable construction ensures long-term reliability, even in harsh industrial settings with temperature fluctuations, vibration, or electrical noise. The fuse’s design incorporates advanced materials and manufacturing processes to maintain stable electrical characteristics over time, reducing the risk of nuisance tripping or premature failure. This Class CC fuse is particularly well-suited for applications in power supplies, control panels, automation systems, and sensitive electronic circuits where even minor overcurrent events can compromise system integrity. Common use cases include: - Industrial automation and robotics - Telecommunications equipment - Medical devices and diagnostic systems - Renewable energy inverters and controllers - Test and measurement instrumentation Professionals in electrical engineering, maintenance, and system design rely on Littelfuse’s reputation for quality and innovation when selecting protection components. The KLDR.187HXP is part of Littelfuse’s extensive Class CC fuse portfolio, which is trusted by engineers worldwide for applications requiring precise current ratings and high interrupting capacity. Its compact size (typically 1/4" x 1-1/4") allows for efficient use of panel space, while its blade-style terminals ensure secure, low-resistance connections in both new installations and retrofit projects. Installation is straightforward, with the fuse designed to fit standard Class CC fuse holders and blocks. When selecting a fuse, professionals consider factors such as ambient temperature, load characteristics, and coordination with upstream protection devices. Littelfuse provides comprehensive technical documentation, including time-current curves and application notes, to support engineers in making informed decisions. The KLDR.187HXP’s 0.187A rating makes it ideal for protecting low-current circuits, such as control signal lines, sensor circuits, or auxiliary power feeds, where even small overcurrents could lead to component degradation or system failure. Littelfuse’s commitment to safety and performance is reflected in the KLDR.187HXP’s compliance with industry standards, including UL 248-14 for Class CC fuses. This ensures the fuse meets stringent requirements for interrupting rating, voltage rating, and mechanical durability. For engineers and technicians seeking a reliable, high-quality fuse for critical applications, the Littelfuse KLDR.187HXP Class CC fuse delivers the precision, durability, and peace of mind required in today’s demanding industrial environments.
  • 0.187A current rating for precise low-current circuit protection
  • Class CC design for fast response and high interrupting capacity
  • Compact 1/4" x 1-1/4" size for efficient panel space utilization
  • Engineered for durability in harsh industrial environments
  • UL 248-14 compliant for trusted safety and performance

Specifications

Application
Transformer Protection
Brand Name
Littelfuse
Current Rating
0.187 A
Series
KLDR
Size
1/4" x 1-1/4"
Special Features
Time-Delay
Standard
248-4 UL Listed, Class CC
Sub Brand
POWR-GARD KLDR Series
Type
Class CC

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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.