DT50/275-(3V+T) (-S) T1+ T2 AC combination arrester

The DT50 3V+T surge protective devices are type 1+2 combined arresters designed for lightning current and surge protection in low-voltage power systems and used at the boundaries of lightning protection zones 0B -2 and higher.

Featuring an integrated PROSURGE high-energy MOV and GDT, the DT50 3V+T ensures remarkable lightning current discharge capacity of up to 7.5 kA 10/350 μs (LN), 12.5 kA 10/350 μs (N-PE) and high reliability. The unique thermal protection design ensures fast thermal response and safe disconnection.

• TÜV-certified T1+ T2 SPD according to IEC/EN 61643-11 standard
• Pre-wired four-pole SPD (“3+1” circuit) for use in three-phase TN/TT systems
• The unique design of the thermal disconnect switch ensures fast thermal response and safe disconnection
• Lightning current capacity up to 7.5 kA 10/350 μs (LN), 12.5 kA 10/350 μs (N-PE)
• Surge current capability up to 50 kA 8/20 μs
• Undervoltage protection level
• High short circuit current of up to 25 kArms, suitable for use in most AC systems.
• Degradation error indication and optional remote signal contact.
• Pluggable module for easy replacement without removing system cabling.
• Wide operating temperature range -40 °C to 85 °C
• 35 mm DIN rail mounting
• Complies with UL1449 5th, IEEE C62.41 and CSA C22.2 standards
• 5-year warranty

Data sheet