WEG CWB9-11-30D39 - CONTACTOR CWB9-11-30D39
WEG

CWB9-11-30D39

Alternate Item Number: 12876240

UPC: 7909158952793

Contact for Pricing

Overview

The **WEG CWB9-11-30D39 Contactor** is a high-performance, electrically-operated switching device engineered for the precise control of motor and power circuits in demanding industrial environments. Designed by WEG, a global leader in electric motor and automation solutions, this contactor combines robust construction with advanced electromagnetic technology to deliver unmatched reliability, efficiency, and longevity. Built to withstand millions of switching cycles, the CWB9-11-30D39 is an essential component in motor starters, lighting control systems, and automated machinery across a wide range of industries, including manufacturing, HVAC, water treatment, and material handling. At its core, the CWB9-11-30D39 operates as an electrically-controlled switch, using an electromagnetic coil to open and close power contacts remotely. This mechanism enables seamless integration into control circuits, allowing operators to start, stop, and reverse motors with precision while minimizing manual intervention. The contactor’s design prioritizes arc suppression, ensuring safe operation by reducing electrical arcing during switching, which protects both the device and connected equipment from damage. Additionally, auxiliary contacts are included for control circuit signaling, enhancing system flexibility and enabling complex automation sequences. The CWB9-11-30D39 is particularly well-suited for applications requiring frequent switching, such as conveyor systems, pumps, fans, and compressors. Its rugged construction is optimized for harsh industrial conditions, including exposure to dust, vibration, and temperature fluctuations, making it a trusted choice for facilities where downtime is not an option. WEG’s reputation for engineering excellence ensures that this contactor meets stringent international standards for performance and safety, including compliance with IEC, UL, and other regulatory frameworks. Professionals selecting the CWB9-11-30D39 benefit from WEG’s decades of expertise in industrial automation, where reliability and efficiency are paramount. Installation is straightforward, with standardized mounting options and clear wiring diagrams provided in the technical documentation. For maintenance teams, the contactor’s modular design simplifies inspections and replacements, reducing service time and costs. Whether deployed in a new installation or as a replacement for aging equipment, the CWB9-11-30D39 delivers consistent performance, energy efficiency, and operational safety. WEG’s global presence and commitment to innovation further solidify the CWB9-11-30D39 as a top-tier solution for industrial control applications. With a focus on sustainability and energy conservation, WEG designs products that not only meet current demands but also support future advancements in automation and smart manufacturing. By choosing the CWB9-11-30D39, engineers and facility managers invest in a contactor that enhances system reliability, reduces energy consumption, and ensures compliance with evolving industry standards.
  • Electromagnetic coil for remote motor and power circuit control
  • Arc suppression technology for safe, long-lasting operation
  • Auxiliary contacts for enhanced control circuit flexibility
  • Rugged construction for harsh industrial environments
  • Compliant with IEC, UL, and other international standards

Specifications

Package Weight (Imperial)
0.827 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 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.