WEG CWB38-11-30C03 - CONTACTOR CWB38-11-30C03
WEG

CWB38-11-30C03

Alternate Item Number: 12240668

UPC: 7909018815114

Contact for Pricing

Overview

The WEG CWB38-11-30C03 Contactor is a robust, electrically-controlled switch engineered for demanding industrial environments. Designed for frequent and reliable switching of motor and power circuits, this contactor is a cornerstone of modern automation and control systems. WEG, a globally recognized leader in electrical equipment manufacturing, delivers exceptional quality and performance with the CWB38-11-30C03, ensuring longevity and operational efficiency. At its core, the CWB38-11-30C03 utilizes an electromagnetic coil to precisely open and close power contacts. This mechanism facilitates remote operation of electric motors, pumps, compressors, and other significant electrical loads, offering unparalleled flexibility in system design and management. The inherent design of WEG contactors is focused on durability, built to withstand millions of switching operations, a critical requirement for applications involving continuous or frequent start-stop cycles. This makes the CWB38-11-30C03 an indispensable component in motor starters, sophisticated lighting control systems, and complex automated machinery across various industrial sectors. Key features of the WEG CWB38-11-30C03 include advanced arc suppression technology, which effectively mitigates the damaging effects of electrical arcs generated during switching. This not only extends the lifespan of the contactor but also enhances safety by reducing the risk of equipment failure. Furthermore, the inclusion of auxiliary contacts provides essential functionality for control circuits, enabling interlocking, signaling, and feedback mechanisms within larger automation schemes. The rugged construction of the CWB38-11-30C03 is specifically tailored for harsh industrial settings, resisting vibration, dust, and temperature fluctuations, thereby ensuring consistent operation under challenging conditions. Applications for the WEG CWB38-11-30C03 are extensive, spanning manufacturing plants, water treatment facilities, HVAC systems, and material handling equipment. Its versatility allows for integration into a wide array of electrical control panels and motor control centers (MCCs). When selecting a contactor, factors such as voltage rating, current carrying capacity, number of poles, and auxiliary contact configuration are paramount. The CWB38-11-30C03 is designed to meet these critical requirements for many standard industrial power applications. Choosing WEG for your contactor needs means investing in a product known for its reliability, safety, and adherence to international quality standards. The CWB38-11-30C03 exemplifies WEG's commitment to providing high-performance electrical solutions that drive industrial productivity and operational excellence.
  • WEG CWB38-11-30C03 Contactor for industrial power and motor control.
  • Electrically-controlled switch with electromagnetic coil operation.
  • Designed for frequent switching and millions of operational cycles.
  • Features arc suppression for enhanced safety and longevity.
  • Includes auxiliary contacts for control circuit integration.

Specifications

Connection Type
Screw Terminal
Series
CWB38
Series
CWB38-11-30C03
Package Weight (Imperial)
1.197 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.