WEG CWB12-11-30C12 - CONTACTOR CWB12-11-30C12
WEG

CWB12-11-30C12

Alternate Item Number: 12542263

UPC: 7909158247707

Contact for Pricing

Overview

The WEG CWB12-11-30C12 contactor is a high-performance, electrically-operated switch engineered for the rigorous demands of industrial motor control and power circuit management. Designed by WEG, a global leader in electrical engineering solutions, this contactor delivers exceptional reliability, efficiency, and longevity in applications requiring frequent switching of motors, lighting systems, and automated machinery. As a critical component in motor starters, the CWB12-11-30C12 ensures seamless operation in environments where uptime and precision are paramount. This contactor operates on an electromagnetic principle, utilizing a coil to energize and de-energize power contacts, enabling remote control of electrical loads. Its robust construction is optimized for industrial settings, where exposure to dust, vibration, and temperature fluctuations is common. The CWB12-11-30C12 is equipped with arc suppression technology to minimize electrical arcing during switching, enhancing safety and extending the lifespan of the contacts. Additionally, it features auxiliary contacts for control circuit integration, allowing for flexible configuration in complex automation systems. Typical applications for the WEG CWB12-11-30C12 include: - Motor starters for pumps, fans, compressors, and conveyors - Lighting control systems in commercial and industrial facilities - Automated machinery in manufacturing and processing plants - HVAC systems requiring reliable switching of high-current loads - Industrial automation and control panels where space and performance are critical Industries that benefit from this contactor span manufacturing, mining, oil and gas, water treatment, and renewable energy. Professionals in these sectors rely on WEG’s reputation for engineering excellence, ensuring that the CWB12-11-30C12 meets stringent performance and safety standards. When selecting a contactor, engineers prioritize durability, switching capacity, and compatibility with existing systems. WEG’s contactors are trusted for their compliance with international certifications, including IEC and UL standards, providing peace of mind in critical applications. Installation of the CWB12-11-30C12 is straightforward, with mounting options designed for DIN rail or panel mounting. Proper sizing and wiring are essential to ensure optimal performance, and WEG provides comprehensive technical documentation to guide professionals through the process. Regular maintenance, such as inspecting contacts and verifying coil functionality, ensures long-term reliability. For industries where downtime is costly, the CWB12-11-30C12’s ability to handle millions of switching operations makes it a cost-effective solution. Choose the WEG CWB12-11-30C12 contactor for unmatched reliability in industrial control applications. Backed by WEG’s decades of expertise in electrical solutions, this contactor delivers the performance and durability required to keep operations running smoothly, even in the most demanding environments.
  • Electrically-operated switch for frequent motor and power circuit switching
  • Arc suppression technology for enhanced safety and contact longevity
  • Auxiliary contacts for flexible control circuit integration
  • Rugged construction for industrial environments with dust, vibration, and temperature fluctuations
  • Compliant with IEC and UL standards for global reliability

Specifications

Mounting Type
DIN rail or panel mounting
Series
CWB
Package Weight (Imperial)
1.069 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-40

BFB-40

CONTACT BLOCK BU BFB-40

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.