PV installation surge protector DEHNcombo YPV 1200 FM Type 1 900075

Photovoltaic system protection – reliability and safety

The DEHNcombo YPV 1200 FM surge arrester is a multipolar combined device designed to protect photovoltaic inverters from the effects of overvoltages, including direct lightning strikes. It meets the requirements of IEC 60364-7-712 and EN 61643-31 standards, guaranteeing its effectiveness and compliance with applicable regulations. The device combines the functions of type 1 and type 2 arresters, providing comprehensive protection for the PV installation.

Construction and application

DEHNcombo YPV 1200 FM is a disconnecting-switching combined device, which means that in the event of a voltage surge, it automatically disconnects the circuit, minimizing the risk of damage. It has a damage indicator that facilitates quick identification of the need for replacement. Additionally, the FM version is equipped with a remote signaling contact, enabling monitoring of the device status and integration with building or installation management systems. The device width is only 4 modules, making it easy to install even in tight switchgear cabinets.

Key features and benefits

• Versatile protection: The combination of type 1 and type 2 arresters provides effective protection against various types of overvoltages – both impulse and those caused by lightning strikes.
• Installation safety: The disconnecting-switching function minimizes the risk of damage to the inverter and other components of the photovoltaic installation in the event of a surge.
• Easy diagnostics: The damage indicator allows for quick identification of the need to replace the device after a surge.
• Remote monitoring: The remote signaling contact enables integration with monitoring and failure notification systems.
• Compact size: A width of 4 modules makes it easy to install in standard switchgear cabinets.
• Compliance with standards: Meeting the requirements of IEC 60364-7-712 and EN 61643-31 standards guarantees safety and reliable operation.
• Durability: Discharge current up to 12.5 kA and short-circuit strength Iscpv at 10 kA level ensure effective protection even in difficult operating conditions.
• Low protection voltage level: Voltage protection level below 3.8 kV minimizes the risk of damage to sensitive components of the photovoltaic installation.

The maximum PV voltage reaches up to 1200 V DC, and the total discharge current is 12.5 kA. The voltage protection level is less than 3.8 kV, and the short-circuit strength Iscpv is 10 kA. The device has a potential-free changeover contact for remote status signaling.

This surge arrester is an investment in the long-term and safe operation of your photovoltaic installation – both for professional installers looking for a reliable solution and for end-users who value peace of mind.