DEHNvenCI DVCI1 255 Type 1+2 Combination Surge Arrester, 1-Pole, 255 V AC 961200

For electrical contractors and panel builders protecting commercial and industrial power distribution systems, the DEHNvenCI DVCI1 255 (961200) is a 1-pole combination surge arrester that combines Type 1 and Type 2 protection in a single DIN-rail mounted device. It is designed to protect low-voltage consumer installations from surge voltages caused by direct lightning strikes or switching operations.

Key specifications

• SPD type: Type 1 + Type 2 combination arrester
• Number of poles: 1
• Max. continuous operating voltage (Uc): 255 V AC
• Lightning impulse current (Iimp) (10/350 µs): 25 kA per pole
• Nominal discharge current (In) (8/20 µs): 25 kA per pole
• Voltage protection level (Up): ≤ 1.5 kV
• Follow current extinguishing capability (Ifi): 50 kA rms
• Mounting: 35 mm DIN rail
• Protection degree: IP20
• Operating temperature range: -40 °C to +80 °C
• Connection cross-section: 2.5 - 35 mm² solid, 2.5 - 25 mm² stranded
• Housing material: thermoplastic, red, UL 94 V-0
• Fault indication: visual (green/red flag)
• Integrated thermal disconnector

Why choose it

The DEHNvenCI DVCI1 255 offers high discharge capacity and low voltage protection level, ensuring reliable protection for sensitive equipment. Its compact design saves space in distribution boards, and the integrated disconnector provides safe isolation in case of overload.

Ideal use cases

• Main distribution boards in residential and commercial buildings
• Industrial control panels requiring Type 1+2 surge protection
• Installations with high lightning exposure

Good to know

This arrester is compliant with IEC 61643-11 and EN 61643-11. It is suitable for use in TN-S, TN-C, TT, and IT systems (with appropriate configuration). The maximum backup fuse is 160 A gL/gG.