WEG CWBS18-33-30C03 - CONTACTOR CWBS18-33-30C03
WEG

CWBS18-33-30C03

Alternate Item Number: 13793495

UPC: 7909322898117

Contact for Pricing

Overview

The WEG CWBS18-33-30C03 contactor is a high-performance, electrically-controlled switch engineered for the precise control of motor and power circuits in demanding industrial environments. Designed by WEG, a global leader in electrical engineering solutions, this contactor delivers exceptional reliability, durability, and operational efficiency for applications requiring frequent switching of electrical loads. Whether integrated into motor starters, lighting control systems, or automated machinery, the CWBS18-33-30C03 ensures seamless performance under rigorous conditions, making it an indispensable component in modern industrial automation. This WEG contactor leverages electromagnetic coil technology to reliably open and close power contacts, enabling remote control of motors, pumps, conveyors, and other critical loads. Its robust construction is optimized for millions of switching cycles, providing long-term operational stability even in harsh environments with high vibration, dust, or temperature fluctuations. The inclusion of arc suppression technology minimizes electrical arcing during switching, enhancing safety and extending the lifespan of the contactor and connected equipment. Additionally, auxiliary contacts allow for flexible control circuit integration, enabling complex automation sequences and interlocking systems. Industries such as manufacturing, mining, oil & gas, water treatment, and HVAC rely on WEG contactors like the CWBS18-33-30C03 for their proven performance and compliance with international standards. Professionals select WEG contactors for their compatibility with a wide range of motor sizes, ease of installation, and compatibility with WEG’s extensive line of motor starters and protection devices. The compact and modular design of the CWBS18-33-30C03 facilitates space-efficient panel layouts, while its standardized mounting options ensure compatibility with existing control panels and switchgear. WEG’s reputation for innovation and quality is reinforced by decades of expertise in electrical motor and control solutions. The CWBS18-33-30C03 contactor is backed by WEG’s global service network, offering technical support, replacement parts, and maintenance guidance to ensure minimal downtime. Whether used in new installations or as part of retrofitting projects, this contactor delivers the reliability and efficiency required to maintain continuous industrial operations. Trusted by engineers and plant managers worldwide, the WEG CWBS18-33-30C03 contactor is a cornerstone of safe, efficient, and scalable industrial automation systems.
  • Electromagnetic coil for reliable remote motor control
  • Arc suppression for enhanced safety and longevity
  • Auxiliary contacts for flexible control circuit integration
  • Rugged construction for harsh industrial environments
  • Millions of switching cycles for long-term durability

Specifications

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.