About Us

Harries Automation and Control was formed in 1984 in Llanelli, South Wales, to service the needs of the heavily industrial area with regards to Automation, PLC, Scada, wiring solutions and industrial electronic assemblies. After a progressive growth, HAC became a limited company in 1995, expanding both its customer base and areas of expertise to include hydraulic and pneumatic systems, fault finding, CAD design and LV switchgear. Our highly trained and qualified engineers posses the necessary skills to aid the electrical industry in providing a complete package from concept and design, research and development through to manufacture and end user training.

HAC is now proud to be able to offer the following services:

· LV Panels up to 6300A to the 61439-1 standard

· Standalone PFC panels

· 3ph and 1ph wall mounted distribution boards

· Power and lighting boards to the L2 regulations

. Our systems can incorporate any of the following equipment manufactures switchgear:

· Schneider Electric


· Siemens / Crabtree

· Dorman Smith Switchgear

· Terasaki devices

· Design and manufacture of BMS and HVAC control panels

· Automation and Control

· PLC programming and Software Writing

· Wiring Solutions

· Pneumatic and Hydraulic systems

· Fault Finding

· End user training

· Motion Control – including drives and inverters

· Computer Aided Design (CAD)

· Metering and Instrumentation Services

· Robotics

The success of HAC’s growth is evident as it is now the parent company of two further business ventures. Huggett Automation and Control (Bath) was established as part of the HAC Group in 2009 and Switchgear Services (Exeter) was brought under the umbrella in September 2011 The company has gained ISO: 9001:2008 accreditation and an enviable customer base. We are proud to list:

  • Severnside Waste To Energy Plant
  • Crumlin Waste To Energy Plant
  • Total – offshore (fuels and oils),
  • Chevron, LNG plant, Haverfordwest
  • BBC Television
  • The British Government
  • Rolls Royce,
  • Lusail Stadium – Qatar 2022 World Cup
  • One Central Square, Cardiff

and many other prestigious names amongst our clientele. HAC has achieved its continued success via its special and highly valued business relationships with the market leader manufacturers allowing us to offer complete packages to our customers, providing top quality equipment, components and manufacturing practices at cost effective rates. We believe our key ethos of always having our customer and their application in mind throughout our processes cements our most important principle at HAC “Once our customer, always our customer” This is what we strive to achieve in all our projects. We want our customers to feel safe in the knowledge that we have them in the forefront of our mind throughout, and by doing so we look to make meaningful long standing business relationships, not just on the project in hand, but for future challenges the customer may come across.