01
Safe local isolation
Provide a clearly identified DC disconnection point for commissioning, maintenance and emergency procedures.
All applications
01 / APPLICATION
Rooftop Solar
Compact, coordinated DC protection for space-constrained rooftop photovoltaic systems.
01 / SYSTEM CONTEXT
Design around the operating environment.
Rooftop PV systems place protection equipment close to occupied buildings, exposed cable routes and restricted service areas. VIOX helps designers organize isolation, overcurrent protection, surge protection and field connections into a practical DC-side architecture.
Final selection must follow the approved electrical design, applicable standards and site conditions. VIOX product references provide a structured starting point for engineering review and quotation.
02 / DESIGN PRIORITIES
What the DC protection plan must resolve.
02
Compact installation
Select DIN-rail or enclosed devices that fit restricted roof, loft and inverter-adjacent locations.
03
Weather resistance
Coordinate enclosure, cable gland and connector choices with UV, moisture and temperature exposure.
04
Service clarity
Keep protection devices accessible and ratings legible throughout the operating life of the installation.
03 / SYSTEM PATH
From PV field to protected inverter input.
- 01PV modules and string connections
- 02String overcurrent and surge protection
- 03Local DC isolation
- 04Protected DC input to the inverter
04 / RECOMMENDED PRODUCTS
Build the protection chain.
Combine only the functions required by the approved system design. Ratings and device coordination remain project-specific.
02
Field connection
03MC4 Solar Connector
Create consistent cable connections across photovoltaic modules, strings and field wiring.
Branch and feeder protection
04DC Circuit Breaker
Miniature and molded-case circuit breakers for photovoltaic, storage and industrial DC distribution.
Module-level safety
06Rapid Shutdown Device
Reduce photovoltaic array voltage rapidly for emergency response, servicing and code-driven shutdown requirements.
Safe isolation
07DC Isolator Switch
Provide a visible and dependable means of disconnecting photovoltaic DC circuits.
String protection
08PV DC Fuse
Coordinate fault protection for photovoltaic strings, arrays and DC equipment.
Surge protection
PV DC SPD
Help protect photovoltaic DC equipment from transient overvoltage events.
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