Safety and operational continuity in photovoltaic systems with Elettra solutions
For modern photovoltaic systems, safety and operational reliability are becoming increasingly important.
It is precisely this need that gave rise to SUNLOCK:
the solution developed by Elettra for the emergency disconnection of DC photovoltaic strings, designed to simplify their management.
SUNLOCK is an emergency disconnection system with motorised reset capability that allows photovoltaic strings to be isolated in the event of an emergency, maintenance or critical conditions, whilst ensuring that the circuit can be restored remotely, without the need for manual intervention.
The solution complies with the DCPREV 14030 Fire Service regulations, providing a practical solution to fire safety requirements in photovoltaic systems.
SUNLOCK uses DC motorised disconnect switches combined with a control board, which allow the strings to be disconnected when the release button is pressed or in the event of overheating above 100°C.
How does SUNLOCK work?
The system uses a power-fail opening mechanism driven by a motorised energy-storage unit, which allows the gate to be released even in the event of a power cut and ensures that it can subsequently be closed remotely without the need for manual intervention.
The open/closed status of the disconnectors can be monitored remotely via signal contacts. Remote motorised reset ensures operational continuity, making SUNLOCK suitable for residential and industrial installations, both on rooftops and in the field, where access is difficult and manual intervention would require specialist operators.
A practical solution for the most sensitive situations
SUNLOCK release panels have been specifically designed to provide a compact and reliable system for:
• Emergency disconnection of low-voltage DC photovoltaic strings
• perform remote reclosure without manual intervention
• view the open/closed status of the strings
• increase safety during maintenance and technical work
• improve accessibility even in the most complex systems
• protect the system in the event of high temperatures or critical conditions
The main benefits
SUNLOCK Elettra disconnect switches are designed to enhance the safety of photovoltaic systems and simplify the management of DC strings.
- Greater control on the DC side
- Greater safety during operations
- Business continuity for your solar power system
Contact us to find out which configuration is best suited to your project and to receive dedicated technical support!
Megiston