har-modular PCB Connectors HARTING har-modular PCB Connectors are based on traditional DIN 41 612 style connectors offering the same robustness and durability. A modular design that locks together with a fixing rail allows users to easily configure custom connectors from off-the-shelf components, providing flexibility during the production stage. The har-modular connectors feature an operating temperature range of -55°C to +125°C, current ratings of up to 40A, and 500 mating cycles. HARTING har-modular PCB connectors are ideal for use in the transportation, machinery, robotics, automation, energy, and medical markets. HARTING’s har-modular is now UL approved.