WEG CWBS12-33-30D02 - CONTACTOR CWBS12-33-30D02
WEG

CWBS12-33-30D02

Alternate Item Number: 14096259

UPC: 7909323537077

Contact for Pricing

Overview

The **WEG CWBS12-33-30D02 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 exceptional durability, reliability, and operational efficiency for applications requiring frequent switching. Built to withstand millions of cycles, the CWBS12-33-30D02 is a cornerstone component in motor starters, lighting control systems, and automated machinery across manufacturing, HVAC, water treatment, and renewable energy sectors. **Key Features and Functionality** At its core, the CWBS12-33-30D02 contactor operates on electromagnetic principles, using a control coil to energize and de-energize power contacts. When the coil is energized, it creates a magnetic field that closes the main contacts, allowing current to flow to the connected load. Upon de-energization, a spring mechanism rapidly opens the contacts, safely interrupting the circuit. This rapid, controlled switching minimizes arcing and reduces wear on contacts, extending service life even under heavy-duty conditions. The contactor is equipped with **arc suppression technology**, which safely dissipates the energy generated during contact opening, protecting both the contactor and downstream equipment from damage. Additionally, auxiliary contacts are integrated to support control circuit functions, enabling interlocking, signaling, and remote monitoring—critical for modern automation and safety systems. **Industry Applications and Use Cases** The CWBS12-33-30D02 is ideal for a wide range of industrial applications where reliable power switching is essential. In **manufacturing plants**, it is commonly used in motor starters for conveyor systems, pumps, and compressors, ensuring smooth operation and reduced downtime. In **HVAC systems**, it controls large motors in air handling units and chillers, contributing to energy efficiency and system longevity. The water and wastewater treatment industry relies on this contactor for pump and blower control, where consistent performance is vital for process integrity. Renewable energy installations, including wind and solar farms, also benefit from the CWBS12-33-30D02. It manages power distribution in inverters and grid-tie systems, where high switching reliability and environmental resistance are required. The rugged construction of the contactor ensures reliable operation in harsh conditions, including high humidity, dust, and temperature extremes. **Why Choose WEG for Your Contactor Needs?** WEG is a globally recognized manufacturer with over 50 years of experience in designing and producing high-quality electrical components. The company’s commitment to innovation, rigorous testing, and adherence to international standards (such as IEC and UL) ensures that products like the CWBS12-33-30D02 meet the highest performance and safety benchmarks. WEG’s extensive global distribution network and dedicated technical support provide customers with reliable supply chains and expert guidance for installation, maintenance, and troubleshooting. **Installation and Maintenance Considerations** Proper installation of the CWBS12-33-30D02 contactor is critical to its performance and longevity. Professionals should ensure correct voltage matching between the control coil and the power supply, as well as proper sizing based on the motor or load current. The contactor should be mounted in a clean, well-ventilated enclosure to prevent overheating and dust accumulation. Regular inspection of contacts and coils, along with adherence to manufacturer-recommended maintenance schedules, will maximize operational life and minimize unplanned downtime. For engineers and procurement specialists, selecting the right contactor involves evaluating factors such as switching frequency, load type (inductive, resistive, or capacitive), and environmental conditions. The CWBS12-33-30D02 is designed to excel in all these areas, offering a robust, cost-effective solution for industrial power control needs. With WEG’s reputation for quality and reliability, this contactor is a trusted choice for professionals who demand performance without compromise.
  • Electromagnetic operation for precise power switching
  • Arc suppression technology for enhanced safety and longevity
  • Auxiliary contacts for control circuit integration
  • Rugged construction for harsh industrial environments
  • Millions of switching cycles for long-term reliability

Specifications

Package Weight (Imperial)
0.957 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.