Finnish industrial relay technology since 1982

Delcon is a Finnish manufacturer of high-reliability solid-state I/O relays for demanding industrial environments.

Since the beginning, our focus has been clear: to make relays that keep working where conventional relays often fail. Delcon relays are used in process industry, cranes, energy, marine, automation systems and other applications where reliability, electrical noise immunity and long service life are critical.

All Delcon relays are designed and manufactured in Finland. Our products are known for Delcon's unique pulse-transformer isolation technology, clear switching thresholds and excellent performance with inductive loads, long cables and electrically noisy environments.

Quality is systematic at Delcon: we operate under an ISO 9001:2015 certified quality management system, covering our processes from design through manufacturing and customer support. Where hazardous-area installations require certified equipment, we also supply HazLoc and ATEX approved products alongside our standard portfolio.

We believe that a relay should not be the weak point in an automation system. That is why Delcon products are built for long-term operation, minimal maintenance and dependable switching performance in real industrial conditions.

Today, Delcon exports the majority of its production to customers and partners around the world. Our relays are trusted in critical applications where downtime is expensive, access is difficult and reliability matters more than the lowest component price.

Read our company principles and expectations in the Delcon Code of Conduct. For our approach to longevity, Finnish manufacturing, and responsible sourcing, see Sustainability at Delcon.