Fire disconnect switch SOL30-SAFETY for 3 strings, MC4, 230VAC SOL30X3-SAFETY-MC4-U(230V50HZ) 168100

Fire disconnect switches for photovoltaic installations – safety and reliability

The SOL30-SAFETY fire disconnect switch is a key element ensuring the safety of photovoltaic installations. Designed to disconnect strings of solar panels in emergency situations, such as a fire, it enables quick and effective intervention by rescue services. This device finds application in both small and large installations, guaranteeing protection against the spread of fire and facilitating service work. The design with a lock in the "SAFETY" position prevents accidental re-engagement of the circuit during maintenance.

Construction and functionality

The SOL30-SAFETY is characterized by a solid construction made of plastic, providing resistance to weather conditions (IP65 protection class). It is equipped with a knob for convenient operation and an auxiliary contact (1 NO and 1 NC), which allows for remote monitoring of the switch status. This makes it possible to connect to a monitoring system and quickly detect any problems with the installation's operation. The SOL30X3-SAFETY model is designed to work with three strings of photovoltaic panels, and its MC4 connections simplify assembly and disassembly. Additionally, it has an undervoltage release function, protecting against the effects of short-term voltage drops in the network.

Application and benefits

This disconnect switch is not only a safety element, but also convenience for installers and end-users:

• Fast intervention: Allows for immediate disconnection of panel strings in the event of a fire hazard or the need to perform service work.
• Safety: Lock in the "SAFETY" position prevents accidental re-engagement of the circuit.
• Monitoring: Auxiliary contact allows for remote monitoring of the switch status and quick detection of failures.
• Easy installation: MC4 connections significantly simplify the installation and disassembly process.
• Durability: Made of high-quality materials ensures long-lasting and reliable operation even in harsh weather conditions.
• Compliance with standards: Meets the requirements of IEC/EN 60947-3 standard, guaranteeing safe use.
• Overvoltage protection: Undervoltage release function protects the installation against the effects of short-term voltage drops.
• Versatility: Possibility of mounting on a plate makes the device easy to adapt to different configurations of photovoltaic installations.

The device is a complete unit in a housing, which facilitates its integration with the existing electrical infrastructure. The rated continuous current of 30A allows it to handle most standard strings of photovoltaic panels.