WEG CWBS9-33-30C03 - CONTACTOR CWBS9-33-30C03
WEG

CWBS9-33-30C03

Alternate Item Number: 13793492

UPC: 7909322898681

Contact for Pricing

Overview

The WEG CWBS9-33-30C03 contactor is a high-performance, electrically-operated switching device engineered for demanding industrial applications where reliable motor and power circuit control is critical. As a core component in motor starters, lighting control systems, and automated machinery, this contactor delivers consistent performance across millions of switching cycles, ensuring operational continuity in harsh environments. Manufactured by WEG, a global leader in industrial electrical solutions, the CWBS9-33-03C03 combines robust construction with advanced electromagnetic technology to provide precise control over inductive and resistive loads. Designed for frequent switching operations, the CWBS9-33-30C03 excels in applications requiring remote activation and deactivation of motors, heaters, and other high-power loads. Its electromagnetic coil system enables reliable contact closure and opening, while integrated arc suppression technology minimizes wear on contacts and reduces the risk of electrical arcing during operation. The contactor’s auxiliary contacts allow seamless integration into control circuits, enabling complex automation sequences and interlocking systems. Industries such as manufacturing, mining, oil & gas, water treatment, and HVAC rely on WEG contactors for their proven durability and compliance with international standards. The CWBS9-33-30C03 is particularly suited for: - Motor starters in pumps, compressors, and conveyor systems - Lighting control in large facilities and stadiums - Heating and ventilation systems in industrial plants - Automated machinery in production lines - Emergency shutdown systems and safety circuits Installation is straightforward thanks to standardized mounting configurations and clear terminal labeling, reducing downtime during maintenance or replacement. WEG’s reputation for engineering excellence ensures that the CWBS9-33-30C03 meets stringent quality benchmarks, including overload protection and thermal management features that extend operational lifespan. Professionals trust WEG contactors for their combination of performance, safety, and long-term reliability, making them a preferred choice in both new installations and retrofit projects. When selecting a contactor for industrial applications, key considerations include coil voltage compatibility, contact material (typically silver alloy for high conductivity), and environmental ratings (IP protection, temperature range). The CWBS9-33-30C03 addresses these needs with a design that balances compact footprint with high current handling capacity, ensuring efficient space utilization in control panels. Its compatibility with WEG’s broader line of motor control products simplifies system integration and maintenance planning. For engineers and procurement specialists seeking a dependable contactor that minimizes downtime and maximizes system efficiency, the WEG CWBS9-33-30C03 delivers uncompromising performance. Backed by WEG’s global service network and adherence to IEC/UL standards, this contactor represents a strategic investment in operational reliability and long-term cost savings.
  • Electromagnetic coil for remote motor/power circuit control
  • Arc suppression technology for extended contactor lifespan
  • Auxiliary contacts for integration into control circuits
  • Rugged construction for harsh industrial environments
  • Compatible with WEG motor control product ecosystem
  • Millions of switching operations for long-term reliability
  • Standardized mounting for easy installation and maintenance

Specifications

Series
CWBS9
Package Weight (Imperial)
1.217 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-40

BFB-40

CONTACT BLOCK BU BFB-40
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.