Littelfuse PGR-6802-240 - PUMP RELAY, 40A BUILT-IN CTS, 240VAC. The PGR-6800 Pump Protection Relay provides protection for pumps with three-phase motors up to 1,000 Vac. No current transformers are required for currents up to 91 A. The protective functions include overload, phase unbalance, phase loss, phase sequence and undercurrent. The PGR-6800 Pump Protection Relay is ideally suited for applications where operating without load can induce failure. Motor current is monitored and an undercurrent trip occurs when the current drops below a preset level. No additional level detectors are required.
Littelfuse

PGR-6802-240

UPC: 079458189308

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Overview

The **Littelfuse PGR-6802-240 Pump Protection Relay** is a high-performance industrial-grade solution engineered to safeguard three-phase pump motors against critical failure modes. Designed for reliability in demanding environments, this relay provides comprehensive motor protection without the need for external current transformers (CTs) for currents up to 91A, simplifying installation and reducing system complexity. With a **40A current rating** and **240VAC compatibility**, the PGR-6802-240 is optimized for pumps operating in industrial, commercial, and municipal applications where unloaded operation, phase imbalances, or overload conditions could lead to costly downtime or motor damage. **Key Protective Functions:** This relay delivers **multi-faceted protection** tailored for pump applications, including: - **Overload protection** to prevent thermal damage from sustained high currents. - **Phase unbalance detection** to identify irregular current distribution across phases, which can cause excessive heating and reduced motor lifespan. - **Phase loss monitoring** to detect missing phases, a common cause of motor burnout in three-phase systems. - **Phase sequence verification** to ensure correct motor rotation direction, preventing reverse-phase operation. - **Undercurrent monitoring** to detect pump dry-running or blockages, triggering a trip when current drops below preset thresholds—eliminating the need for additional level detectors. **Industry Applications & Use Cases:** The PGR-6802-240 is ideal for a wide range of **pump protection applications**, including: - **Water and wastewater treatment plants**, where pumps operate continuously under variable loads. - **HVAC systems** in commercial buildings, ensuring pumps remain protected from phase-related faults. - **Irrigation and agricultural systems**, where reliable motor operation is critical for crop yield and equipment longevity. - **Oil and gas facilities**, where pumps handle abrasive or corrosive fluids, requiring robust fault detection. - **Mining and construction sites**, where harsh conditions demand durable, low-maintenance protection solutions. **Why Choose Littelfuse?** Littelfuse is a **global leader in circuit protection and industrial automation**, trusted by engineers and maintenance teams for over a century. The PGR-6800 series, including the PGR-6802-240, reflects the company’s commitment to **innovation, reliability, and safety** in motor protection. With a reputation for high-quality components and responsive technical support, Littelfuse ensures that its relays meet the rigorous demands of industrial environments. The **compact, DIN-rail mountable design** of the PGR-6802-240 further enhances its suitability for space-constrained control panels. **Installation & Integration Benefits:** The PGR-6802-240 is designed for **ease of installation and integration** into existing systems. Its **built-in current sensing** eliminates the need for external CTs up to 91A, reducing wiring complexity and material costs. The relay’s **adjustable trip settings** allow for customization based on specific motor characteristics, while its **LED indicators** provide clear visual feedback on operational status and fault conditions. For professionals seeking a **cost-effective, all-in-one protection solution**, the PGR-6802-240 delivers peace of mind with minimal maintenance requirements. **Technical Specifications & Compliance:** - **Rated Current:** 40A - **Voltage Rating:** 240VAC - **Motor Compatibility:** Three-phase motors up to 1,000VAC - **Protection Features:** Overload, phase unbalance, phase loss, phase sequence, undercurrent - **Mounting:** DIN rail - **Certifications:** UL, CE, and RoHS compliant (where applicable) For engineers, maintenance teams, and facility managers tasked with **maximizing pump uptime and minimizing failure risks**, the Littelfuse PGR-6802-240 Pump Protection Relay is a **proven, high-value solution** that combines advanced protection with operational simplicity. Whether deployed in a new installation or as a retrofit in an existing system, this relay ensures **long-term reliability, reduced downtime, and lower total cost of ownership**—making it an essential component in any industrial pump protection strategy.
  • 40A current rating with 240VAC compatibility for three-phase pump motors
  • Built-in current sensing eliminates need for external CTs up to 91A
  • Comprehensive protection: overload, phase unbalance, phase loss, phase sequence, and undercurrent
  • Compact DIN-rail mountable design for easy installation
  • Adjustable trip settings and LED indicators for operational clarity

Specifications

Application
NA
Brand Name
Littelfuse
Special Features
Adjustable trip setting
Standard
UL Listed
Sub Brand
PGR 6800 Series
Type
Protection Relay
RTXD Extractor Tool

6896057-1

RTXD Extractor Tool
RTXP 18

RK926011-BC

RTXP 18
Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10

1-1393143-3

Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10
Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10

1-1393143-6

Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10
Power supply for DIN-rail

PS-60

Power supply for DIN-rail
IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

SCP102D24X-C02

IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

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.