Modular surge protector ETITEC SM T12 PV 1200/12.5 Y RC 002440631

Protection of Photovoltaic Installations with ETITEC SM T12 PV

This modular surge protector, ETITEC SM T12 PV 1200/12.5 Y RC, is a critical component for safeguarding photovoltaic installations against surge damage. Designed to protect against atmospheric discharges and switching surges, it provides reliable protection for both facilities with external lightning protection systems and those without. Its construction, based on varistors and spark gaps in a Y-configuration, combined with internal thermal protection, ensures long-term and effective operation.

Construction and Application

This surge protector is designed for use in DC photovoltaic installations with voltages up to 1200V. Its modular design (3 modules per TH-35 mm rail) simplifies installation and integration with existing electrical infrastructure. The internal circuit features varistors on the side poles and a spark gap on the center pole, ensuring comprehensive protection. Additionally, each pole is equipped with an internal thermal disconnect, protecting against overheating and damage. The RC model includes a signaling contact that provides optical indication of activation and the need for replacement.

Key Features and Benefits

• High Protection Efficiency: Surge current rating of 6.25 kA and protection level of 4.4 kV ensure effective protection against surges.
• Status Indication: Built-in optical signaling contact alerts users to varistor failure, enabling rapid response and device replacement.
• Versatility: Suitable for use in installations with or without external lightning protection systems.
• Safety: Features internal thermal protection on each pole to prevent overheating.
• Easy Installation: Modular design (3 modules) allows for quick and simple mounting on standard TH-35 mm rails.
• Compliance with Standards: Meets requirements of EN 50539-11:2013+A1:2014, ensuring compliance with applicable regulations.
• Large Cable Cross-Section Support: Accommodates cables up to 25 mm² (single-/multi-core) and 35 mm² (flexible), offering flexibility in cable selection.
• Zero DC Leakage Current: Eliminates risk of unwanted DC leakage currents in the circuit, enhancing system safety.

The ETITEC SM T12 PV surge protector is an investment in the safety and reliability of your photovoltaic installation—protection against costly failures and downtime.