DEHNventil Modular - Modular Multipole Combined Lightning Current and Surge Arrester
From Power Supply Systems - Red/Line
With their functional Red/Line design, the devices of the modular DEHNventil family provide a combination of safety and innovation. Designed for 'all-in-one installation', the arresters integrate lightning equipotential bonding and surge protection in a single device, making them ideal for use in compact electrical installations.
Details:
- Prewired spark-gap-based type 1 and type 2 and type 3 combined lightning current and surge arrester consisting of a base part and a single plug-in protection module
- RAC spark gap technology that is powerful yet gentle on terminal devices
- No tripping of 20 A gG fuses up to short-circuit currents of 50 kA rms
- Discharge capacity up to 100 kA (10/350 µs)
- Capable of protecting terminal equipment
- Operating state / fault indication by green / red indicator flag in the inspection window and monitoring of all modes of protection
- Easy replacement of protection modules without tools due to module locking system with module release
The energy-coordinated arresters even allow you to protect terminal equipment if the distance between DEHNventil and the consumers is ≤ 10 m. With a lightning current discharge capacity up to 100,000 A, the arresters ensure a high degree of availability of the electrical installation to be protected. Even in large-scale electrical installations, the modular DEHNventil arresters provide various application benefits. The Red/Line surge arresters installed at the boundaries of the individual lightning protection zones, for example, are already energy-coordinated with the DEHNventil arresters. Encapsulated creepage discharge spark gaps and the small space requirements enable easy integration into switchgear installations or distribution boards. A special feature of the modular DEHNventil family is its functional design, in particular the module locking system. It fixes the protection module firmly in place so that it is safely connected to the base part even with maximum loads. If a protection module has to be replaced, it can be easily released and removed without tools by pressing the release button. By using the double terminals suitable for all conductors, the arresters can be connected in series in a space-saving and cost-effective way up to nominal currents of 125 A as preferred by IEC 60364-5-53. Busbars of type MVS 3 8 6 and MVS 4 11 8 can be used for connecting further DIN rail mounted devices. Selection of the DEHNventil devices is very straightforward based on the network form of the existing low-voltage consumer installation in conjunction with the device type designation.
The patented RADAX Flow technology for follow current limitation and extinction allows high availability of the electrical consumer installation to be protected. Even in case of short-circuit currents as high as 100 kArms, mains follow currents are reduced in such a way that selectivity with respect to low-current-rated fuses is ensured. This means that upstream fuses will not trip due to upcoming mains follow currents.
The operating state / fault indicator of each protective path does not cause operating currents and instantly shows the operating state of the surge arrester. Apart from the standard visual indicator with green and red indicator flags, DEHNventil M ... FM devices feature a three-pole remote signalling terminal. As the remote signalling contact is designed as a floating changeover contact, the remote signal can, depending on the circuit concept, be used as a make or break contact.
Due to their parameters and design, the devices can even be installed upstream of meter panels in low-voltage consumer installations.
Due to their parameters and design, the devices can even be installed upstream of meter panels in low-voltage consumer installations.
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