DEHN ylijännitesuoja Type 2 guard DG MD TT 275 (943310)

Type 2 surge protective device for TT and TN-S systems, providing reliable protection against transient overvoltages with a maximum discharge current of 40 kA.

Advantages

High discharge capacity, fast response time, and integrated thermal disconnector with visual fault indication ensure dependable protection and easy maintenance.

Suitable for

• Low-voltage power distribution systems
• TT and TN-S earthing arrangements
• Industrial and commercial installations

Key specifications

• Nominal voltage: 230/400 V AC
• Max. continuous operating voltage: 275 V AC
• Nominal discharge current (8/20 µs): 20 kA
• Max. discharge current (8/20 µs): 40 kA
• Voltage protection level: ≤ 1.5 kV
• Response time: ≤ 25 ns
• Mounting: 35 mm DIN rail
• Number of poles: 3+1
• Degree of protection: IP20

Recommendations

Install in main distribution boards to protect downstream equipment from surge damage.