WEG Strategic Partner Distributor
WEG MSW 125 B-3 H - ROTARY DISCONNECTOR MSW 125 B3 H

WEG MSW 125 B-3 H ROTARY DISCONNECTOR MSW 125 B3 H

Alternate Item Number: 11898943

UPC: 7909018116570

Contact for Pricing

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

Overview

The WEG MSW 125 B-3 H Rotary Disconnector is a motor disconnect switch designed for safe circuit isolation in industrial applications. Manufactured by WEG, a global leader in industrial electrical solutions, this switch provides visible circuit isolation with a 300mm shaft length. It supports motor disconnects, panel isolation, and emergency stop systems in industries like manufacturing, mining, and oil & gas. The MSW 125 B-3 H is IEC 60947-3 and UL508 compliant, ensuring global standard compatibility. It features a touch-safe IP20 rating and supports load ratings from 25 to 160 Amps.
  • Visible circuit isolation for safety and LOTO compliance
  • 300mm shaft length for versatile panel mounting
  • IEC 60947-3 and UL508 compliant for global standards
  • Touch-safe IP20 rating for operator protection
  • Supports 25 to 160 Amp motor disconnect applications

Specifications

Current Rating
125 A
IP Rating
IP20
Mounting Type
Panel, Door, DIN, or Base Mounting
Poles
3P
Series
MSW
Package Weight (Imperial)
1.34 LB
ROTARY DISCONNECTOR MSW 80 B3

MSW 80 B-3

ROTARY DISCONNECTOR MSW 80 B3
Supprt fof DIN rail Mounted Rectangular Connector

CT-APE

Supprt fof DIN rail Mounted Rectangular Connector
HARDWARE METAL | Size

1/4-20X1

HARDWARE METAL | Size
Push-in wire connector - 4 connections - 0.35 to 2.5 mm / 22 to 14 AWG - Yellow

1SET211003R0000

Push-in wire connector - 4 connections - 0.35 to 2.5 mm / 22 to 14 AWG - Yellow
Degson DK-8/0-F — Heavy-duty insert, Number of contacts:8/0+PE, Dimension:24B, Rated voltage :690V, Rated current:100A, Female insert, axial Screw connection. 8/0, 24B, 100A, Axial screw connection. Axial Screw connection technology, applicable to a wide range of wire specifications. Less materials, easy to manage. With grounding protection.

DK-8/0-F

Degson DK-8/0-F — Heavy-duty insert, Number of contacts:8/0+PE, Dimension:24B, Rated voltage :690V, Rated current:100A, Female insert, axial Screw connection. 8/0, 24B, 100A, Axial screw connection. Axial Screw connection technology, applicable to a wide range of wire specifications. Less materials, easy to manage. With grounding protection.
NEUTRAL POLE MSW AP 40-B-1NO

MSW AP 40-B-1NA

NEUTRAL POLE MSW AP 40-B-1NO
ROTARY DISCONNECTOR MSWB 25 B3 HB

MSWB 25 B3 HB

ROTARY DISCONNECTOR MSWB 25 B3 HB
NEUTRAL POLE MSW AP 40-P-1NO

MSW AP 40-P-1NA

NEUTRAL POLE MSW AP 40-P-1NO

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.