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Littelfuse PGR-6133-120 - MOTOR RELAY, 90A BUILT-IN CTS, 120VAC. 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-6133-120

UPC: 079458189209


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Overview

The Littelfuse PGR-6133-120 Electronic Overload Relay (SKU: PGR-6133-120) is engineered to provide robust and comprehensive protection for small three-phase motors operating up to 1,000 Vac. Manufactured by Littelfuse, a trusted name in circuit protection, this relay offers advanced safeguarding against common motor failure causes, ensuring operational continuity and extending motor lifespan. Its design integrates current transformers (CTs) capable of handling currents up to 90 Amperes directly, simplifying installation for many standard applications. For systems requiring higher current monitoring, the PGR-6130 series, to which this model belongs, also supports the use of external CTs, offering exceptional flexibility and scalability. The PGR-6133-120 excels in its multi-faceted protective capabilities. It actively monitors for and responds to critical fault conditions including: * **Overload:** Prevents damage from sustained excessive current draw. * **Overtemperature:** Detects and mitigates risks associated with motor overheating. * **Phase Imbalance:** Identifies voltage or current imbalances between phases, a common precursor to motor damage. * **Phase Loss:** Responds immediately to the loss of one or more phases, preventing single-phasing damage. * **Phase Sequence:** Ensures correct phase rotation, vital for the proper operation of many motor-driven systems. This extensive suite of protective functions makes the Littelfuse PGR-6133-120 an indispensable component in a wide array of industrial settings. Typical applications include the protection of pumps, fans, conveyors, compressors, and other essential machinery in manufacturing plants, HVAC systems, water treatment facilities, and agricultural operations. The 120 VAC control voltage simplifies integration into existing control panels and power distribution systems. Selecting an electronic overload relay like the PGR-6133-120 is a critical step in preventative maintenance and ensuring the reliability of three-phase motor installations. Professionals choose Littelfuse for their commitment to quality, innovation, and dependable performance. The PGR-6130 series is designed for straightforward installation and setup, minimizing downtime and complexity. Its durable construction ensures reliable operation even in demanding industrial environments. By investing in the Littelfuse PGR-6133-120, facility managers and engineers can significantly reduce the risk of costly motor failures, unscheduled downtime, and associated repair expenses, while optimizing the overall efficiency and safety of their electrical systems.
  • Littelfuse PGR-6133-120 Electronic Overload Relay
  • 90A current rating with built-in CTs
  • 120 VAC control voltage
  • Protects small three-phase motors up to 1,000 Vac
  • Comprehensive protection: overload, overtemperature, phase imbalance, phase loss, phase sequence

Specifications

Application
NA
Brand Name
Littelfuse
Current Rating
90 A
Poles
3-Phase
Series
PGR-6130
Special Features
Adjustable trip setting
Standard
UL Listed
Sub Brand
PGR 6130 Series
Type
Protection Relay
Voltage Rating
120 VAC
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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.