CWB Contactors and Overload Relays

WEG CWB Contactors

• Up to 80A/45kW (AC-3)
• Built-in 1NO + 1NC
• Low consumption DC coils
• Wide range of accessories
• Type 1 / Type 2 coordination

• "Zero-width" mechanical interlock
• Simple and compact mounting of surge suppressors
• Additional contact blocks
• Simple and organised control circuits
• Easy access power and control terminals

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PRODUCT INFO

WEG CWB Series Contactors

COMPACT IN SIZE

GIANT IN TECHNOLOGY

CWB Contactors - from 9 up to 80A

The CWB series contactors are developed according to IEC 60947 and UL 508 international standards, the new WEG CWB line of contactors meets the requirements of a wide range of industrial applications worldwide.The CWBs are designed with the visual pattern and identity of WEG, a brand recognized worldwide for its quality.

IEC current ratings from 9 Amp to 80 Amp
"Zero-width mechanical interlock
Simple and compact mounting of surge suppressor blocks
Additional contact blocks
Simple and organized control circuits
Easy access power and control terminals
WEG RW67 overload relays are available in compact frame sizes from 0.28 A to 40A and are designed for use with, and as perfect complement to, the CWB contactors.

WEG CWB Series Contactors and RWB Overloads

COMPACT SOLUTION Because they are compact, 45 mm wide and available in up to 80 A (45 kW @ 400 V), CWB contactors lead to an overall reduction in size of electric panels if compared to traditional solutions of contactors with the same ratings.


BUILT-IN AUXILIARY 1NO + 1NC The configuration of two built-in auxiliary contacts (1NO + 1NC) makes the application of CWB contactors more flexible in most automation systems, contributing to the optimization of internal space of electrical panels.

"ZERO-WIDTH" MECHANICAL INTERLOCK Mechanical interlock with no additional side space. For applications which require mechanical interlock between contactors, WEG has developed a new mechanical system that ensures compact and easy mounting without the need of any tools. WEG’s new mechanical interlock system allows the mechanical interlock between two contactors of the CWB line with "zero" additional side space and it is possible to assemble 90 mm wide reversing starters of up to 80 A.

SIMPLE AND COMPACT MOUNTING OF SURGE SUPPRESSOR BLOCKS Plug in concept: Quick and easy toll-free mounting. A perfect fit without increasing the size. The coils of CWB contactors operate smoothly with a low level of disturbance in the control circuits. However, in order to reduce voltage surges due to the coil switching even further, WEG has developed surge suppressor blocks especially for the CWB line of contactors, which ensure limitation or even completely eliminate the undesired interferences that may be caused on opening the contactor coil. Surge suppressor blocks are easily mounted on CWB contactors without the need of any kind of tools and also without increasing volume.

Additional Contact Blocks Side or front mounted auxiliary contact blocks with 4 additional auxiliary contacts.

DC Coils with no Inrush Pick-Up Current Low consumption D.C. coils allow direct control through PLCs without the need for coupler relays.