Maxge Electrical Protections

Maxge manufactures modular electrical protection equipment: circuit breakers, residual current devices, surge protectors and isolators. It offers a highly competitive value-for-money option for the switchboard of a photovoltaic installation, on both the DC and AC sides.

What you’ll find at Maxge
Circuit breakers: in curves B and C, single-phase and three-phase, including the DC versions required for the switchboard side.
Residual current circuit breakers: Type A and Type B. Type B is the type required by the regulations when there are electric vehicle chargers or inverters that may feed residual direct current into the grid.
Surge protection: Type 1+2 and Type 2 surge arresters for direct and alternating current.

Why protection matters in photovoltaics
A rooftop installation acts as an unintended lightning arrester: a storm several kilometres away can induce a power surge that renders the inverter inoperable. The surge arrester costs a fraction of the price of the equipment it protects.
There is also a particular issue with the DC side: a circuit breaker designed for AC does not correctly interrupt a DC arc, as there is no natural zero-crossing. Specific DC switchgear must be used.

How to assemble the frame
A typical self-consumption system includes DC protection between the panels and the inverter, AC protection at the output, a suitable residual current device (RCD) and surge arresters on both sides. In an off-grid installation, protection for the battery bank is added, with its fuse relevant.
If you tell us the details of your setup, we’ll tell you exactly which protection measures you need and what size they should be: technical advice free. See all the electrical equipment.