Littelfuse PGR-4300-12 - PGR-4300-12 is a generator ground-fault relay with a supply voltage dc of 12.
Littelfuse

PGR-4300-12

Alternate Item Number: PGR-4300-12

UPC: 079458177374


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Overview

The Littelfuse PGR-4300-12 is a critical component for ensuring the safety and reliability of generator systems. Engineered by Littelfuse, a recognized leader in circuit protection and power control, this generator ground-fault relay (SKU: PGR-4300-12) is specifically designed to detect and respond to ground faults within generator applications. Operating with a stable 12VDC supply voltage, the PGR-4300-12 provides precise and dependable fault detection, safeguarding both personnel and valuable equipment from the damaging effects of ground faults. Ground faults occur when an electrical current unintentionally flows from a conductor to the ground. In generator systems, these faults can lead to equipment damage, fire hazards, and severe electrical shock risks. The PGR-4300-12 relay actively monitors the generator's insulation integrity and neutral current, initiating a rapid shutdown or alarm sequence when a fault condition is identified. This proactive approach is essential for maintaining operational continuity and preventing costly downtime in industrial settings. The PGR-4300 series, to which this model belongs, is built with the robustness and reliability expected from Littelfuse products. Its design prioritizes accurate fault sensing and quick response times, crucial for minimizing the impact of electrical disturbances. Key benefits of integrating the PGR-4300-12 into your generator protection scheme include: * **Enhanced Safety:** Significantly reduces the risk of electrical shock and fire hazards associated with ground faults. * **Equipment Protection:** Prevents damage to generators, connected loads, and associated electrical infrastructure. * **Operational Uptime:** Minimizes unplanned downtime by quickly isolating fault conditions. * **Reliable Performance:** Leverages Littelfuse's expertise in developing high-quality protection devices for demanding industrial environments. * **Precise Fault Detection:** Offers accurate monitoring capabilities essential for sensitive generator applications. This relay is an ideal choice for a wide array of industrial applications, including: * Standby and prime power generators in manufacturing plants. * Emergency power systems in critical facilities like hospitals and data centers. * Mobile generator units used in construction and event management. * Renewable energy systems incorporating generator backup. * Marine and offshore power generation. When selecting a ground-fault relay, professionals consider factors such as supply voltage, trip sensitivity, response time, and integration capabilities. The PGR-4300-12's 12VDC operation makes it suitable for systems utilizing low-voltage DC control power, a common configuration in many generator control panels. Littelfuse's commitment to quality manufacturing and rigorous testing ensures that the PGR-4300-12 will perform reliably under challenging operational conditions. Its straightforward integration into existing control circuits, coupled with its advanced protection features, makes it a smart investment for any facility relying on generator power.
  • Littelfuse PGR-4300-12 Generator Ground-Fault Relay
  • 12VDC Supply Voltage for reliable operation
  • Precise ground fault detection and response
  • Enhances safety and prevents equipment damage
  • Ideal for industrial generator protection systems

Specifications

Application
NA
Brand Name
Littelfuse
Series
PGR-4300
Special Features
Operates on solidly grounded AC systems
Standard
UL Listed
Sub Brand
PGR 4300 Series
Type
Protection Relay
Voltage Rating
12 VDC
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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.