What is a PV AC combiner box?

The new PV AC Combiner boxes have been designed for PV systems with string inverters in trackers or fix tilt systems. The product portfolio is suitable for inverters from 60 kW up to 200 kW and support voltages of 400 V, 690 V or 800 V AC. The combiner boxes allow to collect from 2 up to 6 string inverters in one single cabinet.

How are PV DC combiner boxes tested?

PV DC combiner boxes are tested according to IEC-61439-2 and are constructed on the basis of the test results as well as assembled for the specific application. This ensures that each of the requirements of the target application is fully met.

Who is letop – a professional PV combiner box manufacturer?

As a professional PV combiner box manufacturer, LETOP has ten years of expertise in C&I solar sector, providing safe and reliable product solutions for system integrators and engineering companies. As PV generation technology rapidly advances, large-scale ground-mounted plants are evolving towards higher voltage and larger capacity.

How many string inverters can a combiner box collect?

The combiner boxes allow to collect from 2 up to 6 string inverters in one single cabinet. They withstand ambient temperatures from −20 up to +50°C to operate in hardest climate conditions, fulfilling the highest market standards as per IEC 61439-2 ed 3.0:2020. Fast delivery time of maximum 4 weeks

How many string configurations can a combiner box support?

The combiner box supports a maximum of 24 string configurations, it is suitable for 1500V DC system voltages. It features industrial-level protection design, including string monitoring, RS485 bus/standard MODBUS-RTU protocol, arc fault detection, and fast shutdown/fireman switch functions.