The DT50 3V is class I & class II (or T1+T2 ) prewired three poles SPD designed for low-voltage power system lightning current & surge protection, used at the boundaries from lightning protection zone 0_B -2 and higher.

With built in PROSURGE high energy MOV, DT50 3V ensures remarkable lightning current discharge capacity up to 7.5 kA 10/350μs and high reliability. The unique design of thermal protection provides quick thermal response and secure disconnection.

• TUV certified T1+ T2 SPD per IEC/EN 61643-11 standard.
• Prewired three poles SPD (“3+0” circuit) for use in three phase IT / TN-C systems
• Unique thermal disconnector design provides quick thermal response and secure disconnection
• Lightning current capacity up to 7.5 kA10/350μs
• Surge current capability up to 50kA 8/20μs
• Low voltage protection level
• High short-circuit current rating up to 25kArms, suitable for application in most AC power system.
• Degradation failure indication and optional remote signal contact.
• Pluggable module for easy replacement without the need to remove system wiring.
• Wide operating temperature -40ºC ~85ºC
• 35mm DIN-rail mounting
• Comply with UL1449 5^th, IEEE C62.41,CSA C22.2 standards

The DT50 series is class I & class II (or T1+T2 ) prewired four poles SPD designed for low-voltage power system lightning current & surge protection, used at the boundaries from lightning protection zone 0_B -2 and higher.

With built in PROSURGE high energy MOV and GDT, DT50 ensures remarkable lightning current discharge capacity up to 7.5 kA 10/350μs(L-N), 12.5kA (N-PE) and high reliability. The unique design of thermal protection provides quick thermal response and secure disconnection.

• TUV certified T1+ T2 SPD per IEC/EN 61643-11 standard
• Prewired four poles SPD (“4+0” or “3+1” circuit) for use in three phase TN/TT systems
• Unique thermal disconnector design provides quick thermal response and secure disconnection
• Lightning current capacity up to 7.5 kA10/350μs(L-N), 12.5kA 10/350μs( (N-PE)
• Surge current capability up to 50kA 8/20μs
• Low voltage protection level
• High short-circuit current rating up to 25kArms, suitable for application in most AC power system.
• Degradation failure indication and optional remote signal contact.
• Pluggable module for easy replacement without the need to remove system wiring.
• Wide operating temperature -40ºC ~85ºC
• 35mm DIN-rail mounting
• Comply with UL1449 5^th, IEEE C62.41,CSA C22.2 standards