WEG CWM40-00-20V18 - CONTACTOR CWM40-00-20V18
WEG

CWM40-00-20V18

Alternate Item Number: 10651087

UPC: 7894171705054

Contact for Pricing

Overview

The WEG CWM40-00-20V18 Contactor represents a pinnacle of reliable industrial control, engineered for the demanding environments of modern manufacturing and automation. As an electrically-controlled switch, this contactor is specifically designed for the frequent and robust switching of motor and power circuits, ensuring seamless operation of critical machinery. Utilizing advanced electromagnetic coil technology, the CWM40-00-20V18 precisely closes and opens power contacts, facilitating remote and automated control of electric motors, lighting systems, and a wide array of other electrical loads. Built with durability and longevity in mind, WEG contactors, including the CWM40-00-20V18, are constructed to withstand millions of switching operations. This inherent resilience makes them indispensable components within motor starters, complex lighting control systems, and sophisticated automated machinery. The design incorporates essential features such as integrated arc suppression, which effectively mitigates the damaging effects of electrical arcs generated during switching, thereby extending the lifespan of the contactor and connected equipment. Furthermore, the inclusion of auxiliary contacts provides crucial functionality for control circuits, enabling interlocking, signaling, and other essential logic operations. The rugged construction ensures reliable performance even under challenging industrial conditions, including variations in temperature, humidity, and vibration. Applications for the WEG CWM40-00-20V18 are extensive, spanning across numerous industries. It is a vital component in: * **Motor Control:** Starting, stopping, and reversing electric motors in pumps, fans, conveyors, compressors, and HVAC systems. * **Power Distribution:** Switching of power to various industrial equipment and sub-panels. * **Lighting Control:** Managing large-scale lighting circuits in factories, warehouses, and commercial buildings. * **Automation Systems:** Integrating into PLCs and other control systems for automated processes and machinery. * **HVAC Systems:** Controlling large motors and heating/cooling elements in commercial and industrial HVAC units. When selecting a contactor, professionals consider factors such as current rating, voltage, number of poles, coil voltage, and environmental protection. The WEG CWM40-00-20V18, with its 20A rating and Series CWM40 designation, offers a dependable solution for applications within its specified parameters. WEG's reputation for manufacturing high-quality electrical components instills confidence in the performance and reliability of this contactor. Installation typically involves secure mounting to a DIN rail or panel, proper wiring of power and control circuits according to electrical codes and manufacturer guidelines, and verification of coil voltage compatibility. The CWM40-00-20V18 is a testament to WEG's commitment to providing robust and efficient electrical control solutions for industrial needs.
  • WEG CWM40-00-20V18 Contactor for reliable industrial control.
  • Rated for 20A current, suitable for motor and power circuits.
  • Series CWM40 ensures robust and frequent switching capabilities.
  • Features electromagnetic coil for remote and automated operation.
  • Includes arc suppression and auxiliary contacts for enhanced functionality.

Specifications

Current Rating
20 A
Series
CWM40
Package Weight (Imperial)
1.32 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.