Complete backup management solution in an incredibly compact format. COMBI-PRO-MAX helps PV installations switch to backup mode during grid failures, keeping essential loads powered safely, reliably, and under control.
COMBI-PRO-MAX
Control and protection for backup systems and island-mode operation
The easiest-to-install compact backup box
Photovoltaic island mode in the palm of your hand
«When the grid goes down, your PV installation doesn’t have to go down with it. COMBI-PRO-MAX is Toscano’s control and protection system that activates island mode and ensures power supply during a grid outage, combining thermal-magnetic protection, permanent overvoltage protection, and smart backup in a single device. Compatible with Huawei inverters, it turns any self-consumption installation into a more efficient, autonomous, and secure system.
- No need for an additional contactor panel.
- No need for large additional panels for the inverter either.
- No need for double wiring.
- Replaces the main circuit breaker.
A design built for every detail
Complete control of your PV installation in a single device. Explore the key features of COMBI-PRO-MAX and discover how each component contributes to a safer, faster, and more efficient transition to backup.
Compact All-in-One design
Integrates backup control, protection, and automatic reconnection into a compact DIN-rail solution.
Automatic backup activation
Activates the inverter's backup mode when a grid fault is detected, helping to maintain power supply to the selected loads.
Smart and safe
reconnection
"Automatically reconnects once the grid returns to normal and remains stable, ensuring controlled and reliable operation.
Backup box with permanent overvoltage protection
Complying with the UNE-EN 63052 / 50550 standard
COMBI-PRO-MAX protects against permanent overvoltages and reconnects once grid voltage returns and stays within the normal range set by the standard, making the installation 100% automatic and safe.
- In compliance with the UNE-EN 63052/50550 standard.
- Protection against permanent overvoltages and undervoltages with approved trip time.
- Produces no operating noise
Inverter compatibility
Connection with multiple Huawei inverters
Parallel (or cascade) connection can be done, but only the master inverter will operate in backup mode. CM or CPM connections must be made to the master inverter (the one with the energy meter connected). This can only be done with the single-phase inverter versions: SUN2000…-L1, SUN2000…-LB0 and SUN2000…-LC0
Compatible inverters:
SUN2000-2KTL-L1
SUN2000-3KTL-L1
SUN2000-3.68KTL-L1
SUN2000-4KTL-L1
SUN2000-4.6KTL-L1
SUN2000-5KTL-L1
SUN2000-6KTL-L1
SUN2000-8K-LC0
SUN2000-10K-LC0
SUN2000-3K-LB0
SUN2000-3.68K-LB0
SUN2000-4K-LB0
SUN2000-4.6K-LB0
SUN2000-5K-LB0
SUN2000-6K-LB0
SUN2000-3KTL-M1
SUN2000-4KTL-M1
SUN2000-5KTL-M1
SUN2000-6KTL-M1
SUN2000-8KTL-M1
SUN2000-10KTL-M1
SUN2000-12K-MB0
SUN2000-15K-MB0
SUN2000-17K-MB0
SUN2000-20K-MB0
SUN2000-25K-MB0
HUAWEI MULTI-WIRE DIAGRAMS SINGLE PHASE CRITICAL LOADS
HUAWEI MULTI-WIRE DIAGRAMS THREE-PHASE CRITICAL LOADS
HUAWEI FULL BACKUP SINGLE-PHASE MULTI-WIRE SCHEMATICS
Contact us
no strings attached
Get in touch with our team and they’ll be happy to answer any questions you have about our compact backup box, COMBI-PRO-MAX.