WEG Strategic Partner Distributor
WEG CWB38-11-30D45 - CONTACTOR CWB38-11-30D45
WEG

CWB38-11-30D45

Alternate Item Number: 12679561

UPC: 7909158543052

Contact for Pricing

Overview

The **WEG CWB38-11-30D45 contactor** is a high-performance, electrically-controlled switch engineered for the precise and reliable operation of motor and power circuits in demanding industrial environments. Designed by WEG, a global leader in industrial electric motors and automation solutions, this contactor leverages electromagnetic coil technology to efficiently open and close power contacts, enabling seamless remote control of motors, lighting systems, and other heavy-duty electrical loads. With a robust construction and advanced arc suppression capabilities, the CWB38-11-30D45 ensures millions of reliable switching operations, making it an indispensable component in motor starters, lighting controls, HVAC systems, and automated machinery across a wide range of industries. **Key Features and Technical Advantages** The CWB38-11-30D45 contactor stands out for its durability, efficiency, and versatility. Built to withstand harsh industrial conditions, it incorporates rugged materials and precision engineering to deliver consistent performance under high electrical loads. The electromagnetic coil at its core provides fast and reliable actuation, ensuring minimal downtime and enhanced operational safety. Additionally, the contactor includes auxiliary contacts specifically designed for control circuits, allowing for seamless integration into complex automation systems. These auxiliary contacts enable auxiliary functions such as signaling, interlocking, and monitoring, which are critical for maintaining system integrity and operational efficiency. **Industry Applications and Use Cases** The versatility of the WEG CWB38-11-30D45 contactor makes it suitable for a broad spectrum of industrial applications. In manufacturing plants, it is commonly used in motor starters for conveyor systems, pumps, and compressors, where reliable and frequent switching is essential. In the HVAC industry, contactors like this one are critical for controlling large-scale heating and cooling systems, ensuring energy efficiency and system longevity. The contactor is also widely deployed in water treatment facilities, mining operations, and renewable energy installations, where robust electrical switching solutions are required to manage high-power loads and ensure uninterrupted operations. **Installation and Maintenance Considerations** Professionals in industrial electrical systems prioritize contactors that offer ease of installation, minimal maintenance, and long service life. The WEG CWB38-11-30D45 excels in these areas, featuring a modular design that simplifies mounting and wiring. Its compact footprint allows for efficient use of panel space, while the clear labeling and standardized terminal configurations reduce installation time and potential errors. Maintenance is streamlined due to the contactor’s durable construction and the availability of replacement parts, ensuring that downtime is minimized. Regular inspection of the contacts and coil is recommended to maintain optimal performance, and WEG’s extensive global support network provides access to technical assistance and genuine replacement components. **Why Choose WEG for Industrial Contactors?** WEG has established itself as a trusted name in industrial electric solutions, with decades of experience in designing and manufacturing high-quality electrical components. The CWB38-11-30D45 contactor is a testament to WEG’s commitment to innovation, reliability, and performance. By choosing WEG, industrial operators gain access to a product backed by rigorous testing, compliance with international standards, and a reputation for durability. Whether deployed in a factory automation system, a commercial building’s electrical infrastructure, or a renewable energy project, the CWB38-11-30D45 contactor delivers the reliability and efficiency required to keep operations running smoothly. For professionals seeking a contactor that combines cutting-edge technology with proven engineering, WEG’s CWB38-11-30D45 is an outstanding choice.
  • High-performance electromagnetic coil for reliable switching operations
  • Arc suppression technology for enhanced safety and longevity
  • Auxiliary contacts for control circuit integration and monitoring
  • Rugged construction designed for harsh industrial environments
  • Millions of switching cycles for long-term reliability

Specifications

Series
CWB38
Package Weight (Imperial)
0.937 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)
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
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.

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.