WEG CWBS40-33-30D15 - CONTACTOR CWBS40-33-30D15
WEG

CWBS40-33-30D15

Alternate Item Number: 15448010

UPC: 7909522797012

Contact for Pricing

Overview

The **WEG CWBS40-33-30D15 contactor** is a high-performance, electrically-operated switch engineered for the precise control of motor and power circuits in demanding industrial environments. Designed by WEG, a global leader in industrial electric motors and automation solutions, this contactor delivers unmatched reliability, durability, and operational efficiency for applications requiring frequent switching of electrical loads. Built to withstand millions of duty cycles, the CWBS40-33-30D15 is an essential component in motor starters, lighting control systems, HVAC units, and automated machinery across manufacturing, mining, oil & gas, and infrastructure sectors. **Key Features and Operational Advantages:** The CWBS40-33-30D15 leverages electromagnetic actuation to reliably open and close power contacts, enabling remote control of motors and other high-current loads. Its robust construction incorporates arc suppression technology to minimize electrical arcing during switching, extending contact life and reducing maintenance intervals. The unit includes auxiliary contacts for control circuit integration, allowing seamless coordination with PLCs, relays, and other automation components. With a compact footprint and rugged design, it is optimized for panel mounting in harsh industrial conditions, including exposure to dust, vibration, and temperature extremes. **Industry Applications and Use Cases:** This contactor is ideally suited for: - **Motor Control:** Direct-on-line (DOL) and reversing starters for induction motors up to 40A. - **Lighting Systems:** Reliable switching of high-intensity discharge (HID) or LED lighting arrays in warehouses and outdoor facilities. - **HVAC Systems:** Control of compressors, fans, and pumps in commercial and industrial climate control systems. - **Automated Machinery:** Integration into CNC machines, conveyor systems, and robotic assembly lines for precise load management. - **Power Distribution:** Use in main distribution panels and branch circuits where frequent switching is required. **Why Choose WEG for Your Contactor Needs?** WEG is a trusted name in industrial electrical solutions, recognized for innovation, quality, and global support. The CWBS40-33-30D15 reflects WEG’s commitment to engineering excellence, with a focus on energy efficiency, operational longevity, and compliance with international standards such as IEC and UL. Professionals in the field rely on WEG contactors for their consistent performance, ease of installation, and compatibility with a wide range of control systems. Whether upgrading existing infrastructure or designing new automation projects, the CWBS40-33-30D15 provides a dependable solution that reduces downtime and enhances system reliability. **Installation and Maintenance Considerations:** Proper installation of the CWBS40-33-30D15 begins with selecting the correct coil voltage to match the control circuit (e.g., 110V AC, 220V AC, or 24V DC). The contactor should be mounted on a flat, vibration-resistant surface with adequate clearance for heat dissipation. When wiring, ensure tight connections to power terminals and use appropriate cable sizes to handle rated currents. Regular maintenance includes inspecting contacts for wear, verifying auxiliary switch operation, and cleaning arc chambers to prevent contamination. WEG’s extensive documentation and worldwide service network provide additional support for installation, troubleshooting, and replacement. **Technical Compatibility and Integration:** The CWBS40-33-30D15 is designed for seamless integration with WEG motor starters, overload relays, and soft starters, forming a cohesive control ecosystem. It is also compatible with third-party components, including contactors from other manufacturers, when used within specified voltage and current limits. For applications requiring enhanced safety, the contactor can be paired with external arc shields or enclosed in NEMA or IP-rated enclosures to meet specific environmental requirements. Its modular design allows for easy replacement of coils and contacts, reducing lifecycle costs and simplifying upgrades. **Conclusion:** For industrial professionals seeking a robust, high-cycle contactor that delivers long-term performance and operational flexibility, the **WEG CWBS40-33-30D15** stands as a premier choice. Whether deployed in heavy manufacturing, renewable energy systems, or smart building automation, this contactor ensures reliable switching, minimal maintenance, and maximum uptime. Trusted by engineers and facility managers worldwide, WEG contactors continue to set the standard for reliability in industrial control applications.
  • High-performance electromagnetic contactor for motor and power circuit control
  • Arc suppression technology for extended contact life and reduced maintenance
  • Auxiliary contacts for seamless integration with PLCs and automation systems
  • Rugged construction for harsh industrial environments (dust, vibration, temperature extremes)
  • Compatible with WEG motor starters and third-party control components

Specifications

Current Rating
40 A
Mounting Type
Panel Mounting
Series
CWBS
Package Weight (Imperial)
2.002 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.