Littelfuse MPU-32-04-01 - The MPU-32-04-01 is a motor protection unit with a supply voltage between 65–265 V ac and 80–275 V dc. This unit provides current and temperature-based protection with communication via RS/TIA-232 - Ethernet.
Littelfuse

MPU-32-04-01

Alternate Item Number: MPU-32-04-01

UPC: 079458978216

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Overview

The Littelfuse MPU-32-04-01 Motor Protection Unit (SKU: MPU-32-04-01) represents a critical component in modern industrial electrical systems, engineered to provide comprehensive protection for electric motors. This advanced unit is designed to safeguard valuable motor assets from the detrimental effects of overcurrent and excessive temperature, thereby extending motor lifespan and minimizing costly downtime. Its robust design and intelligent functionality make it an indispensable tool for maintaining operational integrity in demanding industrial environments. The MPU-32-04-01 boasts a wide operating voltage range, supporting both AC and DC power supplies. It is rated for 65–265 V AC and 80–275 V DC, offering exceptional versatility for integration into diverse power infrastructures. This broad voltage compatibility ensures that the unit can be effectively deployed across a multitude of applications, from small auxiliary motors to larger industrial drives, without requiring specialized power supply configurations. The ability to operate on both AC and DC sources significantly simplifies inventory management and installation planning for system integrators and maintenance professionals. Communication capabilities are a cornerstone of the MPU-32-04-01's advanced features. It integrates seamlessly with supervisory control and data acquisition (SCADA) systems and other industrial automation platforms through its RS/TIA-232 and Ethernet communication interfaces. This connectivity allows for real-time monitoring of motor status, current draw, temperature, and fault conditions. Furthermore, it enables remote configuration, diagnostics, and data logging, which are essential for predictive maintenance strategies and optimizing motor performance. The dual communication protocols offer flexibility, allowing for integration into both legacy and modern network architectures. Key benefits of deploying the Littelfuse MPU-32-04-01 include: * **Enhanced Motor Longevity:** Proactive protection against overcurrent and thermal overload prevents premature motor failure. * **Reduced Downtime:** Rapid fault detection and response minimize production interruptions. * **Operational Efficiency:** Real-time data and remote monitoring facilitate optimized motor operation and energy management. * **System Integration:** Versatile communication options ensure compatibility with existing and future automation systems. * **Wide Application Scope:** Suitable for a broad spectrum of industrial motors in sectors such as manufacturing, material handling, water treatment, and HVAC. Littelfuse is a globally recognized leader in circuit protection and power control solutions, renowned for its commitment to quality, reliability, and innovation. The MPU-32-04-01 exemplifies this dedication, providing engineers and facility managers with a dependable solution for protecting their critical motor assets. Its robust construction and adherence to stringent industry standards ensure consistent performance even under challenging environmental conditions. Selecting the MPU-32-04-01 means investing in a proven technology that delivers superior motor protection and contributes to overall plant safety and productivity. This unit is an ideal choice for applications demanding high reliability and intelligent motor management.
  • Comprehensive motor protection against overcurrent and thermal overload.
  • Wide voltage compatibility: 65–265 V AC and 80–275 V DC.
  • Integrated RS/TIA-232 and Ethernet communication for remote monitoring and control.
  • Enhances motor lifespan and reduces operational downtime.
  • Reliable performance from Littelfuse, a trusted leader in circuit protection.

Specifications

Application
NA
Brand Name
Littelfuse
Special Features
ideal for retrofitting and upgrading
Standard
UL, CSA, C-Tick, CE
Sub Brand
MPU 32 Series
Type
Motor Protection
Package Weight (Imperial)
3.960 L
Package Weight (Metric)
1.800 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.