The operating conditions for PV connectors are unique in terms of service life, technical requirements and regular inspections. To ensure safe and reliable performance of the MC4 connector within the expected lifetime, Stäubli Electrical Connectors follows a strict "no cross-connection policy". Therefore, Stäubli Electrical Connectors accepts no liability for damage, connector failure or injury resulting from cross-connecting the MC4 family with 3rd party or any other brand connectors.
We run various internal tests to support and confirm our statements concerning long-term stability. Stäubli Electrical Connectors can resort to know-how built over 50 years, especially in fields that demand highest quality, safety and longevity. Our particular strength is a benefit for the PV industry, where environmental conditions challenge every single component over a time period of 20 or 30 years of operation. Most of our customers are convinced that savings would have been made at the wrong end if the connectors became un-tight or their electrical resistance rose over time.
An inverter is any device that inverts DC (direct current) into AC (alternating current). In a solar installation, an inverter is a centralized device that connects to and manages the performance of the solar panel array; it aggregates the DC power coming from the panels or strings of panels and inverts the DC power into single phase (or three phase) AC power at the correct voltage for delivery into the users electrical system, and provides equipment protection and safety features. The better inverters on the market also allow for data logging and web-based remote monitoring of important performance metrics and power generation.