WEG Strategic Partner Distributor
WEG MPW18-3-D025 - MOTOR PROTECTOR BU MPW18-3-D025

WEG MPW18-3-D025 MOTOR PROTECTOR BU MPW18-3-D025

Alternate Item Number: 12429369

UPC: 7909158003211


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The WEG MPW18-3-D025 is a Manual Motor Protector from the MPW Series by WEG. This compact device integrates motor disconnect, branch circuit protection, and overload protection into a single unit. It supports current settings from 2.5A to 4A and is rated for 50kA short-circuit interruption at 480V. Designed for 1-phase and 3-phase motors, it handles up to 1/2 HP at 230V and 1 HP at 460V. The MPW18-3-D025 complies with IEC 60947-4-1 and UL 508 standards. It features phase loss sensitivity protection and is suitable for pumps, compressors, and HVAC systems.
  • Current setting range: 2.5A to 4A
  • Short-circuit rating: 50kA at 480V
  • Supports 1-phase and 3-phase motors up to 1 HP at 460V
  • Phase loss sensitivity protection
  • Complies with IEC 60947-4-1 and UL 508 standards

Specifications

Package Weight (Imperial)
0.627 LB
GMD-16M DC240V 3W 1b EXP (GMD16M-30-01-UD-3W-S-E)

1270040900

GMD-16M DC240V 3W 1b EXP (GMD16M-30-01-UD-3W-S-E)
MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)

1311001000

MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.
Ground Lug

DNGL

Ground Lug
CONTACT BLOCK BU BLB-02

BLB-02

CONTACT BLOCK BU BLB-02
CONTACT BLOCK BU BFB-20

BFB-20

CONTACT BLOCK BU BFB-20

Frequently Asked Questions

What is the rated operational current range?

The WEG MPW18-3-D025 has a rated operational current range of 2.5 to 4.0 amperes.

What is the maximum short-circuit current rating?

The device has a maximum short-circuit current rating of 50kA at 480V.

What standards does this device comply with?

The WEG MPW18-3-D025 complies with UL 508, IEC 60947-4-1, and IEC 60947-1 standards.

What is the insulation voltage rating?

The insulation voltage rating is 690V according to IEC and VDE standards.

Is phase failure sensitivity protection included?

Yes, the device includes phase failure sensitivity protection.

What motor loads is this device suitable for?

It is suitable for 1-phase motors up to 1/2 HP at 230V and 3-phase motors up to 1 HP at 460V.

What is the operating temperature range?

The operating temperature range is -20°C to +60°C (-4°F to +140°F).

What is the mechanical lifespan of the device?

The mechanical lifespan is 100,000 operations.

What is the weight of the MPW18-3-D025?

The device weighs 0.3 kg (0.7 lbs).

What terminal type does this device use?

The device uses flat-type terminals compatible with a Philips #2 screwdriver.

How to Install the WEG MPW18-3-D025 Motor Protector

Step-by-step guide for mounting and wiring the WEG MPW18-3-D025 motor protector.

Estimated time: 20m

Tools needed:

Phillips screwdriver, Wire strippers, Mounting screws

Supplies needed:

DIN rail, Electrical wires, Crimp connectors (if needed)

  1. Mount the device

    Secure the WEG MPW18-3-D025 to a DIN rail or mounting surface using the provided screws.

  2. Connect the power supply

    Connect the incoming power wires to the appropriate terminals, ensuring correct phase alignment.

  3. Wire the motor load

    Connect the motor load wires to the output terminals, matching the phase sequence.

  4. Set the overload current

    Adjust the overload setting to match the motor's rated current using the provided dial or selector.

  5. Verify connections

    Double-check all connections for tightness and correct wiring before powering on the system.

Frequently Asked Questions about WEG

What certifications and standards do WEG products comply with?

WEG products meet extensive international standards across multiple critical categories, including safety, electromagnetic compatibility (EMC), functional safety, and regulatory compliance. Key certifications include UL, cUL, CE, TÜV Rheinland, and compliance with international standards such as EN 61800 series, IEC 61508, ISO 13849-1, and directives like Low Voltage (2014/35/EU), EMC (2014/30/EU), and RoHS. Their products are certified for safe operation in various industrial environments, with specific standards covering electrical safety, thermal performance, electromagnetic immunity, and environmental protection.

What is WEG's warranty policy?

WEG offers an 18-month standard warranty for automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Repairs must be performed by authorized WEG service, and the warranty is limited to the replacement or repair of the product itself, excluding consequential damages. Extended warranty options are available, including purchasing additional coverage at 2.5% of the product's selling price per year, up to 4 additional years.

What industries and applications are WEG products used for?

WEG products are extensively used across multiple industrial sectors, including packaging equipment, material handling, food processing, pumps, medical/lab equipment, door/gate openers, office machinery, and lawn/garden applications. Their versatile DC motors and variable frequency drives (VFDs) are designed for general industrial use, with solutions ranging from off-the-shelf products to custom OEM designs that meet UL/CSA standards for diverse manufacturing and processing environments.

What technical support does WEG offer?

WEG offers comprehensive technical support through multiple channels, including a dedicated Automation Service Department accessible via toll-free phone (1-877-934-3748) and email ([email protected]). They maintain a global network of accredited service centers worldwide, which customers can locate on their website. Additionally, WEG provides warranty support and technical assistance for their industrial automation products, with pre-approval required for warranty repairs.

What are the key features of WEG products?

WEG products feature advanced industrial automation technologies with key characteristics including high performance, flexibility, and connectivity. Their flagship CFW900 Variable Speed Drive demonstrates core product strengths: intelligent thermal management, built-in safety functions, IoT readiness, advanced energy saving capabilities, and comprehensive communication protocols. WEG drives offer robust performance with features like 150% overload capacity, modern graphic HMI, plug-and-play expansion modules, and compatibility across multiple industrial segments including food and beverage, pulp and paper, and manufacturing.

What communication protocols do WEG products support?

WEG products support multiple industrial communication protocols across their product lines, including EtherNet/IP, Modbus-TCP, Modbus-RTU, CANopen, and optional protocols like Profibus-DP and DeviceNet. Specifically, the PLC500 offers 2x Gigabit Ethernet Ports, 1x CAN Port, and 1x RS485 port, enabling seamless integration with major industrial communication networks.

What environmental ratings do WEG products have?

WEG products feature multiple environmental ratings and protection classes. They offer Protection Class 3C2 as a standard coating and Protection Class 3C3 as an optional extra coating, both compliant with IEC 60721-3-3. Environmental specifications include air relative humidity from 5% to 95% non-condensing, altitude ratings up to 1,000m standard (with current derating above that), and Pollution Degree 2 classification with non-conductive pollution requirements.

What accessories are available for WEG products?

WEG offers a comprehensive range of accessories across multiple product lines. For variable frequency drives like the CFW900, accessories include I/O expansion modules, communication modules, encoder modules, temperature transducer modules, relay output modules, and HMI accessories. These accessories expand communication capabilities, input/output functions, and application flexibility. Most accessories are interchangeable between drive frames and can be installed in backplane slots, with communication network accessories limited to one per variable speed drive.

What are the main product lines offered by WEG?

WEG offers a comprehensive range of industrial automation products, including variable frequency drives (CFW series like CFW100, CFW300, CFW500), soft starters (SSW series including SSW05, SSW07, SSW900), and the innovative Motion Fleet Management (MFM) system for predictive maintenance and asset monitoring. Their product lines are designed to support industrial automation needs across various sectors, providing solutions for motor control, fleet management, and operational efficiency.

How are WEG products typically installed?

WEG products are typically installed with careful attention to mounting specifications, protection ratings, and airflow requirements. For variable speed drives like the CFW900, installation methods include surface mounting, flange mounting, and side-by-side configurations with specific clearance guidelines. Installers must follow precise dimensional requirements for each product frame size, ensuring proper ventilation and electrical connections.