Littelfuse MPU-32-04-00 - The MPU-32-04-00 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-32-04-00

Alternate Item Number: MPU-32-04-00

UPC: 079458978209

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Overview

The Littelfuse MPU-32-04-00 stands as a robust and intelligent solution for safeguarding critical industrial motor applications. Engineered by Littelfuse, a recognized leader in circuit protection, this motor protection unit (MPU) offers comprehensive defense against common motor failure causes, including overcurrent and thermal overload conditions. Its advanced design ensures extended motor lifespan and minimizes costly unplanned downtime, making it an indispensable component in any sophisticated industrial control system. The MPU-32-04-00 boasts a broad operational voltage range, accommodating both AC and DC power supplies. With a supply voltage rating of 65–265 V AC and 80–275 V DC, it provides exceptional flexibility for integration into diverse electrical infrastructures found in manufacturing plants, processing facilities, and heavy machinery operations. This wide voltage tolerance simplifies installation and ensures compatibility across various equipment configurations. Beyond its protective capabilities, the MPU-32-04-00 excels in its connectivity and data reporting features. It integrates seamlessly into modern industrial networks through its RS/TIA-232 and Ethernet communication interfaces. This enables real-time monitoring of motor status, current draw, temperature, and fault conditions. The ability to transmit this data remotely allows for proactive maintenance scheduling, rapid troubleshooting, and enhanced operational oversight. Professionals can leverage this communication capability to build sophisticated SCADA systems, implement predictive maintenance strategies, and optimize energy consumption. Key features and benefits of the Littelfuse MPU-32-04-00 include: * **Comprehensive Motor Protection:** Detects and responds to overcurrent and thermal faults, preventing motor damage. * **Wide Voltage Compatibility:** Operates reliably with 65–265 V AC and 80–275 V DC power sources. * **Advanced Communication:** Features RS/TIA-232 and Ethernet ports for seamless integration with control and monitoring systems. * **Enhanced Diagnostics:** Provides real-time data for status monitoring, fault analysis, and performance optimization. * **Reduced Downtime:** Proactive protection and early fault detection significantly minimize operational interruptions. * **Increased Operational Efficiency:** Optimized motor performance and reduced energy waste through intelligent management. Industries that benefit from the MPU-32-04-00 include automotive manufacturing, food and beverage processing, water and wastewater treatment, material handling, and general industrial automation. Its application is crucial for protecting pumps, fans, conveyors, mixers, and other essential motor-driven equipment. By investing in the Littelfuse MPU-32-04-00, industrial facilities can enhance the reliability, safety, and efficiency of their operations, ensuring consistent production and protecting valuable assets from electrical hazards.
  • Littelfuse MPU-32-04-00 Motor Protection Unit
  • Voltage Rating: 65–265 V AC / 80–275 V DC
  • Communication: RS/TIA-232 - Ethernet
  • Provides current and temperature-based protection
  • Ideal for industrial motor applications

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.