PV fire disconnect switch 30A, MV, undervoltage release delayed 230V50Hz SOL30-SAFETY/2MV-U(230V50HZ) 144123

DC Disconnect Switch for Photovoltaic Installations

This DC disconnect switch, designed for photovoltaic systems, provides effective disconnection of the DC circuit in the event of a fault or the need to perform maintenance work. It is a key safety element in every PV installation, minimizing the risk of fire and facilitating intervention by emergency services. The device is particularly useful in situations requiring quick and reliable disconnection of power, e.g., during fire extinguishing or repair of damaged components.

Design and Application

The SOL30-SAFETY/2MV-U(230V50HZ) disconnect switch is a complete device in an enclosure, designed for plate mounting. It has two poles and is adapted to operate with a rated voltage of 690…690 V and a continuous current of 32 A. Equipped with an undervoltage release with a delay (230V50Hz), it reacts to drops in mains voltage, which helps avoid unnecessary shutdowns caused by short-term disturbances. An additional auxiliary contact (1NO) enables signaling of the switch status, which is important for monitoring and remote control systems. The IP65 protection class guarantees resistance to weather conditions and dust, allowing installation in various environments.

Key Features and Benefits

• Safety: Provides quick and reliable disconnection of the DC circuit in the event of a fault or fire, protecting personnel and property.
• Undervoltage Release: Eliminates the risk of false alarms thanks to the delay in operation, reacting only to sustained voltage drops.
• Status Indication: Auxiliary contact informs about the current status of the switch (on/off), which facilitates diagnostics and system monitoring.
• Durable Construction: Made of high-quality materials, resistant to weather conditions (IP65) and mechanical damage.
• Easy Installation: Designed for plate mounting, which simplifies installation and integration with existing infrastructure.
• Compliance with Standards: Meets the requirements of IEC/EN 60947-3 standards, ensuring safety and reliability of operation.
• Switching Capacity: Allows safe disconnection of a load up to 30 kW at 400 V.
• Short-Circuit Strength: Rated short-time withstand current Icw is 0.36 kA, providing protection against the effects of short circuits.

Thanks to these features, this disconnect switch is a reliable solution for installers and end-users looking for a safe and effective way to protect their photovoltaic installation from fire and facilitate service work.