R3&A Limited   Your Partner in Lightning and Surge Protection Solutions, and Domotics
R3&A Limited is a Canadian, independent, private owned company located in Cobourg, Ontario offering complete solutions of Surge and Lightning Protection, and Domotics - Home Automation - Systems. We have strong and close partnerships with well known suppliers like DEHN and TELETASK and are their exclusive business partner for the Canadian market. R3&A Limited offers extensive support and customer service on the spot. Additionally, we organise seminars and lectures, and supply detailed information and designing material. R3&A Limited is an independant company with over 25 years of experience in the lightning and surge protection and home automation.


External Lightning Protection System Design More comprohensive than CSA B-72, UL 96 and NFPA 780, the IEC 62305 provides for a more robust external lightning protection system. R3A and DEHN provide design assistance from engineering through installation. Internal Lightning and Surge Protection System Design We offer comphrehensive planning and design services for internal lightning and surge protection in accordance with the Lightning Protection Zone concept “LPZ”.

News Facts

NEW: DEHNpatch Outdoor
waterproof Ethernet/PoE
DEHNpatch Outdoor, the new
complete unit consists of surge
protection and an outdoor
enclosure protects your
surveillance cameras,
PoE++/4PPoE and other GBit
Ethernet applications. The
DEHNpatch Outdoor has a
lightning current discharge
capability of 4kA (10/350 µs) in
total. Wireless Inspection Camera Reliable inspections and easy operation via WiFi link to a smartphone or tablet. The portable inspection camera can be used for regular visual inspections and for documenting the state of an electrical installation up to 123 kV / 15 – 60 Hz. TELETASK- Energy Management without Worries Learn how to reduce your carbon footprint and lower your energy costs.

R3A Learning Centre

Our 2020 Webinar schedule is now available! Attending our Webinars is your opportunity to learn more about Lightning and Surge currents/waveforms, what they are, how they come into existence, protection guidelines, installation code, standards, case studies and practice. As well as the all new TELETASK webinars. These webinars will provide you information about the basics of TELETASK,  full house integration, security, and massive energy savings. In these Webinars we pass on decades of information to our customers. Our news letter comes out every quarter and will inform you about the latest developments concerning products, standards and installation practices.
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