Littelfuse MPU-32-02-01 - The MPU-32-02-01 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 - DeviceNet.
Littelfuse

MPU-32-02-01

Alternate Item Number: MPU-32-02-01

UPC: 079458978193


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Overview

The **Littelfuse MPU-32-02-01 Motor Protection Unit (SKU: MPU-32-02-01)** is a high-performance industrial-grade solution designed to safeguard motors against overcurrent, thermal overload, and other fault conditions. Engineered for versatility, this unit supports a wide operating voltage range of **65–265 V AC and 80–275 V DC**, making it suitable for diverse industrial environments where power fluctuations are common. With **RS/TIA-232 and DeviceNet communication** capabilities, the MPU-32-02-01 integrates seamlessly into modern industrial control systems, enabling real-time monitoring, diagnostics, and remote configuration. This motor protection unit is built to meet the rigorous demands of **manufacturing, automation, process control, and heavy machinery applications**, where motor reliability is critical to operational continuity. Unlike generic protection devices, the MPU-32-02-01 combines **current-based and temperature-based sensing** to provide comprehensive fault detection, reducing the risk of catastrophic motor failure and unplanned downtime. Its **compact and rugged design** ensures durability in harsh industrial settings, while compliance with industry standards guarantees long-term performance. **Key Features & Benefits:** - **Wide Voltage Range (65–265 V AC / 80–275 V DC):** Operates reliably across global power systems, eliminating the need for multiple variants. - **Dual Protection Mechanism:** Monitors both **current overloads and thermal conditions** to prevent motor damage from overheating or excessive current draw. - **Industrial Communication Protocol (RS/TIA-232 - DeviceNet):** Enables integration with **PLCs, HMIs, and SCADA systems** for centralized monitoring and control. - **Real-Time Diagnostics & Alerts:** Provides immediate feedback on motor health, allowing for proactive maintenance and reducing repair costs. - **Easy Installation & Configuration:** Designed for **DIN rail mounting** and quick setup, minimizing downtime during deployment. **Why Choose Littelfuse for Motor Protection?** Littelfuse is a **trusted leader in industrial protection solutions**, with decades of expertise in safeguarding critical infrastructure. The MPU-32-02-01 reflects the company’s commitment to **innovation, reliability, and safety**, ensuring that industrial motors operate at peak efficiency while minimizing risk. Whether deployed in **conveyor systems, pumps, compressors, or CNC machinery**, this motor protection unit delivers **unmatched protection, flexibility, and peace of mind** for engineers and maintenance teams. For applications where **motor longevity, system uptime, and operational safety** are non-negotiable, the **Littelfuse MPU-32-02-01** is the intelligent choice. Its **advanced fault detection, robust communication, and broad voltage compatibility** make it an essential component in modern industrial automation strategies.
  • Wide voltage range: 65–265 V AC / 80–275 V DC for global compatibility
  • Dual protection: Current and temperature-based fault detection
  • Industrial communication: RS/TIA-232 & DeviceNet for system integration
  • Real-time monitoring & diagnostics for proactive maintenance
  • Compact, rugged design for harsh industrial environments

Specifications

Application
NA
Brand Name
Littelfuse
Mounting Type
DIN Rail Mounting
Series
MPU-32
Special Features
ideal for retrofitting and upgrading
Standard
UL, CSA, C-Tick, CE
Sub Brand
MPU 32 Series
Type
Motor Protection
Voltage Rating
65–265 V ac / 80–275 V dc
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.