Littelfuse CT200L - Detects phase current or ground-fault current. (200-A primary)
Littelfuse

CT200L

Alternate Item Number: CT200L

UPC: 079458977677


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Overview

The Littelfuse CT200L (SKU: CT200L) is a high-performance current transformer engineered for precise detection of both phase current and ground-fault current in demanding industrial environments. With a robust 200-A primary current rating, this transformer provides reliable and accurate current sensing capabilities crucial for system protection and monitoring. Its design is optimized for integration with various Littelfuse protection relays and control systems, including popular models such as FPS, FPU-32, MPS, MPU-32, PGR-8800, SE-105, SE-107, and SE-701, ensuring seamless compatibility and enhanced operational efficiency. The CT200L's 89 mm (3.50") inner diameter accommodates a wide range of conductors, facilitating flexible installation in diverse electrical setups. This versatility makes it an ideal component for applications requiring sensitive detection of abnormal current conditions, such as in power distribution panels, motor control centers, industrial machinery, and critical infrastructure. By accurately measuring current flow, the CT200L enables early detection of potential faults, preventing equipment damage, minimizing downtime, and ensuring personnel safety. Littelfuse is a globally recognized leader in circuit protection and power control solutions, and the CT200L embodies their commitment to quality and reliability. This current transformer is built to withstand the rigors of industrial operation, offering consistent performance and longevity. Its ability to detect both standard phase currents and critical ground-fault currents makes it a versatile tool for comprehensive electrical system management. Whether for routine monitoring or emergency fault detection, the CT200L delivers the accuracy and dependability that professionals expect from Littelfuse products. Its integration capabilities with a broad spectrum of Littelfuse protective devices further solidify its position as a key component in advanced electrical safety and control architectures.
  • Detects phase current or ground-fault current
  • 200-A primary current rating
  • 89 mm (3.50") inner diameter for conductor flexibility
  • Compatible with Littelfuse FPS, FPU-32, MPS, MPU-32, PGR-8800, SE-105, SE-107, SE-701
  • Reliable and durable industrial-grade construction

Specifications

Application
Industrial
Brand Name
Littelfuse
Special Features
Detects phase current or ground-fault
Sub Brand
CT 200
Type
Current Transformer

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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.