Littelfuse PGR-6131-24 - MOTOR RELAY, 16A BUILT-IN CTS, 24VDC. The PGR-6130 Electronic Overload Relay provides protection for small three-phase motors up to 1,000 Vac. Integrated CTs are for currents up to 90 A and external CTs can be used for currents above 90 A. The protective functions include overload, overtemperature, phase imbalance, phase loss, and phase sequence.
Littelfuse

PGR-6131-24

UPC: 079458189131


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Overview

The Littelfuse PGR-6131-24 Electronic Overload Relay, part of the robust PGR-6130 Series, is engineered to deliver superior protection for small three-phase motors operating at voltages up to 1,000 Vac. This advanced relay is designed for critical industrial applications where motor reliability and operational continuity are paramount. Its integrated Current Transformers (CTs) are capable of handling currents up to 90 A, providing comprehensive monitoring for a wide range of motor sizes. For applications requiring higher current capacities, the PGR-6131-24 seamlessly integrates with external CTs, offering exceptional flexibility and scalability. This sophisticated motor protection solution goes beyond basic overload detection, incorporating a suite of advanced protective functions to safeguard your valuable motor assets. These critical functions include: * **Overload Protection:** Prevents motor damage from sustained excessive current draw. * **Overtemperature Monitoring:** Detects and responds to excessive motor winding temperatures, a common cause of failure. * **Phase Imbalance Detection:** Identifies uneven voltage distribution across motor phases, which can lead to reduced efficiency and premature wear. * **Phase Loss Protection:** Immediately de-energizes the motor upon detection of a missing phase, preventing single-phasing damage. * **Phase Sequence Monitoring:** Ensures correct phase rotation, crucial for the proper operation of many motor-driven systems. The Littelfuse PGR-6131-24 is an ideal choice for a diverse array of industrial sectors, including manufacturing, HVAC, material handling, and pump systems. Its ability to protect against multiple fault conditions significantly reduces the risk of costly downtime, repairs, and premature motor replacement. The 24VDC control voltage ensures compatibility with a wide range of control systems and power supplies commonly found in industrial automation. Littelfuse is a globally recognized leader in circuit protection and switching solutions, renowned for its commitment to quality, innovation, and reliability. The PGR-6130 Series exemplifies this dedication, offering engineers and maintenance professionals a dependable and intelligent solution for motor protection. The compact design of the PGR-6131-24 facilitates easy integration into existing control panels and electrical enclosures, while its user-friendly interface simplifies setup and configuration. Investing in the Littelfuse PGR-6131-24 means investing in enhanced motor longevity, improved system performance, and greater peace of mind for your critical operations.
  • Electronic overload relay for three-phase motors up to 1000 Vac
  • Integrated CTs for currents up to 90 A; external CTs supported for higher currents
  • Protective functions: overload, overtemperature, phase imbalance, phase loss, phase sequence
  • 24VDC control voltage for broad system compatibility
  • Durable and reliable solution from Littelfuse, a leader in circuit protection

Specifications

Application
NA
Brand Name
Littelfuse
Special Features
Adjustable trip setting
Standard
UL Listed
Sub Brand
PGR 6130 Series
Type
Protection Relay
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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.