WEG Strategic Partner Distributor
WEG MSW AP 25-B-1NA - NEUTRAL POLE MSW AP 25-B-1NO
WEG

MSW AP 25-B-1NA

Alternate Item Number: 12727284

UPC: 7909158646722

Contact for Pricing

Overview

The **WEG MSW AP 25-B-1NO Neutral Pole** is a high-performance disconnect switch designed for industrial motor and electrical equipment isolation, providing a visible means of de-energization during maintenance, repair, or service operations. Engineered by **WEG**, a global leader in electric motor and automation technology, this disconnect switch ensures operational safety, regulatory compliance, and reliable performance in demanding industrial environments. Whether installed in manufacturing plants, processing facilities, or commercial buildings, the MSW AP 25-B-1NO delivers robust isolation capabilities with lockout/tagout (LOTO) compatibility to meet stringent safety standards such as OSHA and NFPA 70E. This disconnect switch is part of WEG’s **MSW AP series**, a trusted line of motor disconnect switches known for durability, precision engineering, and ease of installation. The **1NO (normally open)** configuration ensures a clear visual indication of the switch’s state, reducing the risk of accidental energization and enhancing worker safety. With a compact and rugged design, the MSW AP 25-B-1NO is ideal for applications requiring frequent equipment access, such as conveyor systems, pumps, HVAC units, and industrial machinery where routine maintenance is essential. **Key Features and Benefits:** - **Visible Isolation:** The switch provides a clear open/closed indication, eliminating ambiguity during maintenance and ensuring compliance with safety protocols. - **Lockout/Tagout (LOTO) Capable:** Designed to support lockout procedures, the MSW AP 25-B-1NO helps facilities meet OSHA and other regulatory requirements for equipment de-energization. - **High Durability:** Constructed with robust materials, this disconnect switch withstands harsh industrial conditions, including dust, moisture, and mechanical stress. - **Easy Installation:** The MSW AP 25-B-1NO is designed for straightforward integration into existing electrical panels or motor control centers, reducing downtime during setup. - **WEG Reliability:** Backed by WEG’s reputation for innovation and quality, this disconnect switch is a trusted choice for engineers and maintenance professionals worldwide. **Typical Applications:** The WEG MSW AP 25-B-1NO is widely used in industries such as **manufacturing, food processing, water treatment, mining, and commercial facilities**, where motor-driven equipment requires regular servicing. It is particularly well-suited for: - **Motor control centers (MCCs):** Providing isolation for individual motors within a larger system. - **HVAC systems:** Ensuring safe access to compressors, fans, and pumps during maintenance. - **Conveyor systems:** Allowing for equipment shutdown without disrupting entire production lines. - **Pump stations:** Enabling isolation for maintenance while maintaining system integrity. **Why Choose WEG?** WEG is a globally recognized manufacturer with decades of experience in electric motor and automation solutions. The company’s commitment to research and development ensures that products like the MSW AP 25-B-1NO meet the highest standards of performance, safety, and reliability. Professionals in industrial electrical systems trust WEG for its consistency, technical support, and adherence to international certifications, including UL, IEC, and CE. **Installation and Maintenance Considerations:** When selecting a disconnect switch, professionals prioritize **safety, ease of use, and compatibility** with existing systems. The MSW AP 25-B-1NO excels in these areas, offering a **snap-action mechanism** for reliable switching and **terminals designed for secure wire connections**. For optimal performance, ensure the switch is installed by a qualified electrician and inspected regularly for signs of wear or damage. WEG provides comprehensive documentation and support to assist with installation, troubleshooting, and compliance with local electrical codes. For facilities prioritizing **safety, efficiency, and long-term reliability**, the WEG MSW AP 25-B-1NO Neutral Pole disconnect switch is an indispensable component of any industrial electrical system. Its combination of **visible isolation, LOTO compatibility, and rugged construction** makes it a preferred choice for professionals who demand the best in motor control and safety solutions.
  • Visible isolation with clear open/closed indication
  • Lockout/tagout (LOTO) capable for OSHA compliance
  • Compact and rugged design for harsh industrial environments
  • Easy installation in motor control centers and electrical panels
  • Backed by WEG’s reputation for quality and innovation

Specifications

Current Rating
25 A
Poles
1NO
Series
MSW AP
Package Weight (Imperial)
0.066 LB
ROTARY DISCONNECTOR MSWB 25 B3 HB

MSWB 25 B3 HB

ROTARY DISCONNECTOR MSWB 25 B3 HB
DSN60 PHASE ROTATION METER

63-61043-MTR

DSN60 PHASE ROTATION METER
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
ROTARY HANDLE MSW H 40-P-B

MSW H 40-P-B

ROTARY HANDLE MSW H 40-P-B
NEUTRAL POLE MSW AP 40-B-1NO

MSW AP 40-B-1NA

NEUTRAL POLE MSW AP 40-B-1NO
NEUTRAL POLE MSW AP 40-P-1NO

MSW AP 40-P-1NA

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

MSWB 40 B3 HB

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

MSW AP 25-P-1NA

NEUTRAL POLE MSW AP 25-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.