Electrical Power & Protection


Compact contactor solutions

January 2019 Electrical Power & Protection

Engineered to provide a compact contactor solution, the WEG CWB range of devices offers a width space saving of up to 18%. Developed in two frame sizes, the contactors meet a range of industrial and domestic application requirements. The first contactor in the range, covering up to 38 A, has a width of only 45 mm while the second contactor, ranging from 40 to 80 A, has a width of 54 mm. Two mounting options, standard DIN rail or oblong mounting holes makes interchangeability easy.

Significantly, the space saving allows the use six contactors where previously only five could be used. Another innovative engineering feature is the use of WEG’s Zero-Width mechanical interlocking system. Traditionally contactors use a mechanical interlock device which is external to the contactor. The Zero-Width system facilitates quick and easy mechanical interlocking between contactors, without the need for tools. In addition, this feature allows the user to build a reversing starter up to 38 A with a total width of only 90 mm.

Built-in front auxiliary contacts not only enhance the space saving benefit, but also eliminate the need to purchase additional auxiliary contacts. This feature also offers greater flexibility as it facilitates optimisation of the internal space in electrical panels.

In another innovation, the contactors have been engineered with integral surge suppressor blocks without increasing the physical size of the devices. This limits undesired interference which could be caused during the opening of the contactor coils and allows for the front mount surge suppressor to be easily removed without the use of special tools.

Energy saving is achieved through the low consumption of the coils, which allows direct switching from PLCs without the need for interface relays. This facilitates both space and cost savings for the end-user.

Available at competitive pricing from Zest WEG Group’s branches and national distributor network, the WEG CWB range of contactors affords customers a high level of flexibility.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Compact, high density power protection system for AI, data centre and large-scale electrical workloads
Schneider Electric South Africa Electrical Power & Protection
Schneider Electric has launched its new Galaxy VXL – a highly efficient, compact, modular, scalable and redundant 500-1250 kW (400 V) 3-phase uninterruptible power supply (UPS), complete with enhanced cybersecurity, software and safety features.

Read more...
Taking the pain out of panel building
Omron Electronics Electrical Power & Protection
Panel building stands as a cornerstone of industrial automation, shaping the efficiency and reliability of automated systems across different and diverse industries, from manufacturing to infrastructure. Omron leverages over 80 years of experience to furnish OEMs and builders with cutting-edge control panel solutions.

Read more...
Powerless is not an option
Electrical Power & Protection
When the power goes out it is important for commercial and tertiary facilities to be able to keep essential electrical equipment running. UPS systems are critical for transitioning and emergency backup power.

Read more...
High-performance surface inspection systems for battery production
Electrical Power & Protection
As battery manufacturers increase their focus on yield optimisation to meet growing demand, AMETEK Surface Vision is highlighting the essential role of processes to improve quality and reduce defects.

Read more...
Securing the power supply
Electrical Power & Protection
Grid management systems are the linchpin of modern transmission and distribution networks. To understand the intricacies of grid management, it is necessary to unpack its core components: scada systems, energy management systems, outage management systems and wide area management systems.

Read more...
Powering sustainable mining operations in Africa
Electrical Power & Protection
Africa’s mining sector is at a crossroads and, as the industry grapples with mounting pressure to drive operational efficiency within the boundaries of sustainability, natural gas is emerging as a compelling solution.

Read more...
Multimeters: the perfect entry-level choice
Comtest Electrical Power & Protection
Experience the precision, durability and safety of professional-grade test tools with the entry level Fluke 15B+ and 17B+ digital multimeters.

Read more...
ABB technology powers three substations in Uganda
ABB South Africa Electrical Power & Protection
ABB delivered solutions for three substations run by Uganda’s leading utility, Umeme Limited, which manages and operates the state-owned leased electricity distribution network assets.

Read more...
A snapshot of South Africa’s electricity market over the next six years
Electrical Power & Protection
At the beginning of the year, the Electricity Regulation Amendment Act came into effect, promising to facilitate “an open market platform that allows for competitive electricity trading.” This article focuses on providing a roadmap for the competitive, multi-market electricity trading platform that the ERAA intends to establish.

Read more...
Empowering businesses to prosper as prosumers
Schneider Electric South Africa Electrical Power & Protection
As more businesses adopt renewable energy solutions like rooftop solar and energy storage they become prosumers – both consumers and producers of energy – a trend that presents organisations with a significant opportunity to engage in the bi-directional flow of energy through distributed energy resources.

Read more...