WEG Strategic Partner Distributor
WEG CWB9-11-30D77 - CONTACTOR CWB9-11-30D77
WEG

CWB9-11-30D77

Alternate Item Number: 12961470

UPC: 7894171457885

Contact for Pricing

Overview

The **WEG CWB9-11-30D77 contactor** is a high-performance, electrically-controlled switch engineered for demanding industrial motor control and power circuit applications. Designed by WEG, a global leader in electric motor and automation technology, this contactor delivers robust performance in environments requiring frequent switching of motors, lighting systems, and other high-power loads. Built to withstand millions of operational cycles, the CWB9-11-30D77 ensures long-term reliability, reduced maintenance, and enhanced operational efficiency in industrial automation, manufacturing, and infrastructure projects. This contactor operates on electromagnetic principles, utilizing a coil to energize and de-energize power contacts, enabling precise remote control of electrical loads. Its **arc suppression technology** minimizes contact wear and electrical noise, extending service life while improving safety in high-current applications. The inclusion of **auxiliary contacts** allows for seamless integration into control circuits, enabling interlocking, signaling, and monitoring functions essential for automated machinery and process control systems. **Key Applications & Industries:** The WEG CWB9-11-30D77 is ideal for a wide range of industrial applications, including: - **Motor starters** for pumps, compressors, conveyors, and HVAC systems - **Lighting control** in warehouses, factories, and commercial facilities - **Automated machinery** in manufacturing, food processing, and material handling - **Power distribution** in electrical panels and control cabinets - **Renewable energy systems**, such as solar and wind power installations **Why Choose WEG Contactors?** WEG is a trusted name in industrial electrical solutions, known for engineering products that combine durability, efficiency, and innovation. The CWB9-11-30D77 contactor reflects this commitment, offering: - **Rugged construction** for harsh industrial environments, including resistance to dust, vibration, and temperature extremes - **Modular design** for easy installation and compatibility with WEG’s extensive line of motor control accessories - **Compliance with international standards**, ensuring safety and performance in global markets - **Energy efficiency**, reducing power consumption during operation and standby modes **Installation & Maintenance Considerations:** Professionals select the CWB9-11-30D77 for its straightforward installation and minimal maintenance requirements. The contactor is designed for **DIN rail or panel mounting**, simplifying integration into existing control systems. Regular inspections of contacts and coils, along with adherence to WEG’s recommended maintenance schedules, ensure optimal performance and longevity. For applications requiring high cycling rates, the contactor’s **silver-cadmium oxide contacts** provide superior conductivity and resistance to welding or pitting. **Industry Trust & Global Reach:** WEG’s reputation for reliability is backed by decades of innovation in electric motor and automation technology. The CWB9-11-30D77 contactor is part of a comprehensive portfolio of motor control products, trusted by engineers and facility managers worldwide. Whether deployed in a small workshop or a large-scale industrial plant, this contactor delivers consistent performance, reducing downtime and operational costs while enhancing system safety and control. For industrial professionals seeking a **high-duty contactor** that balances performance, durability, and ease of integration, the WEG CWB9-11-30D77 is a proven solution. Its combination of electromagnetic reliability, arc suppression, and auxiliary contact flexibility makes it an essential component in modern motor control and power distribution systems.
  • Electrically-controlled switch for motor and power circuit applications
  • Arc suppression technology for reduced contact wear and electrical noise
  • Auxiliary contacts for seamless integration into control circuits
  • Rugged construction for harsh industrial environments
  • Compatible with WEG’s motor control accessories and accessories

Specifications

Material
Poly
Mounting Type
DIN rail or panel mounting
Series
CWB9
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.