Interface Protection

One significant change involves ganged devices, particularly when isolating inverter systems. Previously, each inverter required separate isolation, which could be cumbersome. Now, if you have more than two Inverter Energy Systems (IESs) connected to a switchboard and those IESs are on a ganged switch,...

The new AS/NZS 4777.1:2024 standard introduces a key change: interface protection now replaces central protection. This update is crucial for commercial and industrial PV systems, especially for those under 200 kVA. By raising the threshold and focusing on interface protection, the standard offers several...