PV fire disconnect switch 30A, MC4, undervoltage release delayed 230V50Hz SOL30-SAFETY/2MC4-U(230V50HZ) 144122

DC Disconnector for Photovoltaic Installations

This DC disconnector, designed for photovoltaic systems, provides safe and effective disconnection of the DC circuit in the event of a fault or the need for maintenance. It is a key element in ensuring the safety of the PV installation for both users and service teams. The device is particularly useful in situations requiring a quick power cut-off, e.g. during a fire or maintenance work.

Design and Application

The SOL30-SAFETY/2MC4-U(230V50HZ) disconnector from Eaton is a complete device in a housing, designed for plate mounting. It has two poles and is designed to operate with a rated voltage of 690…690 V and a maximum operating voltage of AC 1000 V. The rated continuous current is 32 A, and the withstand short-circuit current is 0.36 kA. It is equipped with MC4 connectors, which facilitates connection to photovoltaic modules. Additionally, it has an optional voltage release, which reacts with a delay (time-lag), minimizing the risk of unnecessary disconnection caused by short-term voltage fluctuations. An auxiliary contact (1NO) allows signaling of the disconnector status.

Key Features and Benefits

• Safety first: Serves as a maintenance disconnector, allowing safe disconnection of the installation during service or emergency work.
• Overload and short-circuit protection: Protects the circuit against overload and short-circuit - like most circuit breakers in this class.
• Fast response in emergency situations: Time-lag undervoltage release allows for quick disconnection of power when a dangerous voltage drop is detected.
• Easy installation and connection: MC4 connectors facilitate connection to photovoltaic modules, and the possibility of plate mounting provides installation flexibility.
• High reliability: Made of high-quality materials, ensuring long-lasting and trouble-free operation (electrical life: 1500 operations; mechanical: 100,000 operations).
• Weather resistance: IP65 protection rating guarantees protection against dust and water, allowing installation outdoors.
• Compliance with standards: Meets the requirements of IEC/EN 60947-3 standard, confirming its safety and quality.
• Status signaling: Has an auxiliary contact (1NO) for signaling the disconnector status – ON/OFF information available for monitoring or automation systems.

Thanks to its solid construction and advanced functions, this disconnector is a reliable solution for any photovoltaic system, ensuring safety and user comfort for both installers and end users.