Littelfuse E7800.0750 - Motorized Potentiometer24VDC,10turn, 1k. The E7800 Motorized Potentiometer is typically used as an interface between increase/decrease relay contacts (or push buttons) and a device requiring control by an external potentiometer (e.g. the speed trim of an electronic governor). All three wires of the potentiometer are directly accessible on external connection terminals, thus providing the best possible flexibility for almost any application. A special version of the E7800 with DC voltage output is also available. The DC output voltage follows the position of the potentiometer. The design of the E7800 ensures that the potentiometer will “remember” its position although supply is lost
Littelfuse

E7800.0750

UPC: 079458961539

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Overview

The **Littelfuse E7800.0750 Motorized Potentiometer** is a high-precision, industrial-grade solution designed for applications requiring remote or automated adjustment of resistance-based control systems. Engineered for durability and reliability, this 24VDC, 10-turn, 1kΩ potentiometer delivers exceptional performance in demanding environments where precise positioning and position retention are critical. With all three potentiometer wires accessible via external connection terminals, the E7800.0750 offers unparalleled flexibility for integration into complex control systems, making it an ideal choice for engineers and technicians seeking a robust and adaptable component. **Key Features and Technical Specifications** The E7800.0750 stands out with its **24VDC operation**, ensuring compatibility with a wide range of industrial control systems, including electronic governors, motor controllers, and process automation equipment. Its **10-turn design** provides fine-tuned adjustments, allowing for precise control over output signals, while the **1kΩ resistance** ensures stable performance across varying load conditions. The potentiometer’s **external terminal connections** simplify wiring and installation, reducing downtime and minimizing the risk of miswiring during setup. Additionally, the design incorporates **position memory**, ensuring the potentiometer retains its last setting even after a power loss—a critical feature for applications where consistency and reliability are non-negotiable. **Versatile Applications Across Industries** The E7800.0750 is widely used in industries such as **power generation, HVAC systems, industrial machinery, and automation**. In power plants, it serves as an interface between relay contacts or push buttons and electronic governors, enabling operators to remotely adjust speed or output settings. In HVAC systems, it facilitates precise control over fan speeds, damper positions, and other variable components. For industrial machinery, the potentiometer allows for fine-tuning of motor speeds, torque settings, or other process parameters, enhancing operational efficiency and reducing wear on equipment. Its ability to output a **DC voltage proportional to its position** (available in a special version) further expands its utility, enabling seamless integration with analog control systems. **Why Choose Littelfuse for Motorized Potentiometers?** Littelfuse is a globally recognized leader in circuit protection and control solutions, with a reputation for delivering high-quality, reliable products that meet the stringent demands of industrial applications. The E7800 series, in particular, reflects the company’s commitment to innovation and precision engineering. Professionals in the field trust Littelfuse for its **consistent performance, long-term durability, and adherence to industry standards**, ensuring that critical control systems operate smoothly and predictably. Whether used in new installations or as a replacement in existing systems, the E7800.0750 provides a cost-effective, high-performance solution that minimizes maintenance and maximizes uptime. **Installation and Integration Considerations** Installing the E7800.0750 is straightforward, thanks to its **external terminal design**, which allows for easy access and secure connections. The potentiometer can be mounted in various orientations, providing flexibility in system design. For applications requiring **DC voltage output**, the special version of the E7800 ensures a linear relationship between the potentiometer’s position and the output signal, simplifying calibration and reducing the need for additional signal conditioning. Professionals should ensure proper grounding and voltage compliance to maintain optimal performance and safety. **Selecting the Right Potentiometer for Your Application** When choosing a motorized potentiometer, engineers must consider factors such as **voltage rating, resistance, turn count, and connection type**. The E7800.0750 excels in applications where **24VDC operation, 10-turn precision, and external terminals** are required. Its **position retention capability** makes it particularly suitable for systems where power interruptions are a concern, while its **versatility** ensures compatibility with a broad range of control devices. For projects demanding reliability, accuracy, and ease of integration, the Littelfuse E7800.0750 is a trusted choice that delivers consistent results in even the most challenging environments.
  • 24VDC operation for industrial compatibility
  • 10-turn design for fine-tuned adjustments
  • 1kΩ resistance for stable performance
  • External terminal connections for flexible wiring
  • Position memory retains settings during power loss
  • Available in DC voltage output version for analog control
  • Robust construction for demanding environments
  • Compatible with electronic governors, motor controllers, and automation systems

Specifications

Application
Marine
Brand Name
Littelfuse
Connection Type
External Terminals
Special Features
Manual speed adjustment
Standard
CE Label, RRR Approval
Sub Brand
E7800 Series
Type
Generator Controls and Protection
Voltage Rating
24 VDC
Package Dimensions (L x W x H)
3.1 IN x 3.8 IN x 3.8 IN
Package Dimensions (L x W x H)
7.874 cm x 9.652 cm x 9.652 cm
Package Weight (Imperial)
1.000 L
Package Weight (Metric)
0.454 kg

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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.