DEHNshield DSH TT 255
| Type of manufacturer: | DSH TT 255 |
|---|---|
| Manufacturer Art. No.: | 941310 |
| Art. Nr.: | 13967 |
| Pieces per package unit: |
|
| Accessory type: | Overvoltage protection |
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Available from stock
Product number:
13967
Description
DEHNshield DSH TT 255
The DEHNshield DSH TT 255 provides reliable protection against surges for your electrical installation in TT and TN-S systems. The compact combination arrester combines Type 1 and Type 2 protection based on spark gaps and is ideal for lightning protection equipotential bonding, including protection for end devices – even in confined spaces. Thanks to the space-saving 1 HP per pole design and simple DIN rail mounting, installation is particularly convenient.
Product benefits
- Combined Type 1 + Type 2 surge protection in a single device
- Compact design with 1 HP per pole – ideal for confined spaces
- Lightning current discharge capacity up to 50 kA for maximum protection
- Energy-coordinated protection right down to the end device (≤ 10 m)
- Visual status indicator for quick checking of operating status
- Easy mounting on 35 mm DIN rail
Product features
- Protection classes: Type 1 + Type 2 in accordance with EN 61643-11
- Mains system: TT and TN-S systems (3+1 configuration)
- Rated voltage: 230 / 400 V AC, max. continuous voltage 255 V
- Lightning surge current (10/350 µs): 50 kA total
- Protection level [L-N]/[N-PE]: ≤ 1.5 kV
- TOV withstand voltage: 440 V / 120 min (L-N), 1200 V / 200 ms (N-PE)
- Mounting dimensions: 4 HP, Colour: Red, Material: Thermoplastic
- Protection class: IP 20, Application: Indoor
- Temperature range: -40 °C to +80 °C








