Littelfuse EFCT-1C/WFC - The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.
Littelfuse

EFCT-1C/WFC

Alternate Item Number: EFCT-1C/WFC

UPC: 079458977691

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Overview

The Littelfuse EFCT-1C/WFC is a highly sensitive nickel-core current transformer specifically engineered for the precise detection of low-level earth-leakage currents. This critical component is designed to integrate seamlessly with Littelfuse relays, forming a robust and reliable earth-leakage protection system. Its primary function is to monitor the residual current in electrical circuits, identifying minute imbalances that could indicate a fault or a potential safety hazard. In industrial and commercial settings, electrical safety is paramount. The EFCT-1C/WFC plays a vital role in preventing electrical fires, protecting sensitive equipment from damage caused by ground faults, and ensuring personnel safety. Its nickel-core construction provides exceptional sensitivity, allowing it to detect even the smallest deviations in current, which is crucial for early fault detection and rapid system response. This high level of precision minimizes the risk of unexpected shutdowns and costly repairs. Key features and benefits of the Littelfuse EFCT-1C/WFC include: * **High Sensitivity:** Accurately detects low levels of earth-leakage current, enabling proactive fault identification. * **Nickel-Core Technology:** Offers superior magnetic properties for enhanced detection accuracy and performance. * **Seamless Integration:** Designed to work in conjunction with Littelfuse relays for a complete protection solution. * **Robust Construction:** Built to withstand demanding industrial environments, ensuring long-term reliability. * **Enhanced Safety:** Contributes significantly to electrical safety by preventing hazards associated with ground faults. * **Equipment Protection:** Safeguards valuable machinery and sensitive electronics from damage. The EFCT series, including the EFCT-1C/WFC, is a testament to Littelfuse's commitment to providing high-quality, dependable electrical protection components. Manufacturers and system integrators rely on Littelfuse for their expertise in circuit protection, and this current transformer is no exception. Its application spans a wide range of industries, including manufacturing plants, data centers, commercial buildings, and renewable energy installations, wherever reliable earth-leakage monitoring is a requirement. Installation of the EFCT-1C/WFC is straightforward, typically involving routing the phase and neutral conductors through the toroidal opening of the transformer. The output signal from the transformer is then fed into a compatible Littelfuse relay, which analyzes the current and initiates a trip signal to disconnect the power supply if a predefined leakage threshold is exceeded. This proactive approach to electrical safety is essential for maintaining operational continuity and preventing catastrophic failures. Choosing the EFCT-1C/WFC means investing in a proven solution for critical earth-leakage detection needs, backed by the reputation and quality of Littelfuse.
  • Sensitive nickel-core current transformer for low-level earth-leakage detection
  • Designed for seamless integration with Littelfuse relays
  • Ensures reliable detection of ground faults to enhance electrical safety
  • Robust construction suitable for demanding industrial environments
  • Protects equipment and personnel from electrical hazards

Specifications

Application
Industrial
Brand Name
Littelfuse
Material
Nickel-core
Series
EFCT
Special Features
High Quality
Sub Brand
Relay Series
Type
Protection Relays and Controls
Package Weight (Imperial)
2.420 L
Package Weight (Metric)
1.100 kg
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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.