DCAC sealed distribution box IP65 EMITER with DC surge limiter Dehn 1000V type 1+2, 3 x MPPT / AC Dehn type 1+2, 63A 3-phase EM-1049_DCAC

DCAC Hermetic Distribution Box – Comprehensive Protection for Photovoltaic Installations

This hermetic DCAC distribution box, with an IP65 protection rating, is designed to provide the highest level of safety and reliability in photovoltaic installations. Equipped with surge arresters on both the DC and AC sides, it effectively protects against the effects of sudden voltage increases that can damage sensitive system components. The design allows for operation with three PV strings and three independent MPPTs, making it an ideal solution for advanced solar installations.

Construction and Application

This distribution box combines the functions of a connection and protective distribution box, integrating Dehn (DC 1000V type 1+2) and Noark (AC type 1+2) surge arresters, as well as a 63A/300mA type A residual current device (RCD) in one housing. This ensures comprehensive protection of the photovoltaic installation, minimizing the risk of failures and downtime. The hermetic IP65 housing guarantees resistance to harsh weather conditions – dust, moisture, and even direct contact with water – allowing for installation both indoors and outdoors.

Advantages and Benefits

• Versatile Protection: Surge protection on both the DC and AC sides minimizes the risk of damage caused by lightning strikes or other network disturbances.
• IP65 Hermeticity: The weatherproof housing ensures safe operation in all weather conditions.
• Support for Multiple PV Strings: The ability to connect three independent photovoltaic strings increases installation flexibility.
• Integrated RCD Protection: The type A residual current device provides additional safety for users, protecting against electric shock.
• MPPT Compatibility: Cooperation with three independent MPPT paths enables optimization of inverter efficiency.
• Easy Integration: The universal design facilitates integration with various types of inverters and automation systems.

Construction and Mounting

The distribution box is designed for ease of installation and use. All protective elements are factory-installed and ready for connection to the photovoltaic installation. The robust housing construction ensures durability and resistance to mechanical damage. Before starting installation, ensure that the DC voltage does not exceed 1000V and the AC current does not exceed 63A (three-phase). Also, check the compatibility of the number of MPPTs with the inverter and match the surge arresters to the characteristics of the installation.