DEHN SET 2 DSH ZP B2 LSG 909656 Surge Protection Kit Type 2 SPD for TT and TN-S Systems

Electrical contractors and panel builders installing surge protection in residential or commercial TT and TN-S distribution boards can use this DEHN SET 2 DSH ZP B2 LSG kit. It combines a 3-pole + NPE Type 2 surge arrester with two DSHU modules, providing coordinated protection for power supply systems.

Key specifications

• Surge arrester type: Type 2 SPD
• System configuration: 3-pole + NPE (3P+N)
• Nominal discharge current (In): 20 kA per pole (8/20 µs)
• Maximum discharge current (Imax): 40 kA per pole (8/20 µs)
• Maximum continuous operating voltage (Uc): 275 V AC
• Voltage protection level (Up): ≤ 1.5 kV
• Follow current extinguishing capability (Ifi): 100 A for N-PE path
• Response time: < 25 ns
• Mounting: 35 mm DIN rail
• Module width: 4 TE
• Housing material: thermoplastic, flame-retardant
• Degree of protection: IP20
• Operating temperature range: -40 °C to +80 °C
• Standards: IEC 61643-11, EN 61643-11

Why choose it

The kit includes all necessary components for a complete Type 2 surge protection setup in TT and TN-S systems, ensuring reliable protection against transient overvoltages.

Ideal use cases

• Main distribution boards in residential buildings
• Commercial electrical panels requiring Type 2 SPD
• TT and TN-S earthing systems

Good to know

Designed for DIN rail mounting, the modules have a compact width of 4 TE. The thermoplastic housing is flame-retardant, and the operating temperature range covers harsh environments from -40 °C to +80 °C.