DEHN Combined Arrester - 961205
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Tameson UKDehn Dvci 1 255 Fm Combined Arrester Type 1+2 Single Phase Protection - 961205
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Product Information
Full details
The DEHN 961205 is a single-pole combined lightning current and surge arrester designed for low-voltage consumer installations. It offers maximum protection against direct lightning strikes and surges, ensuring high availability for terminal equipment. A potential consideration is its specific application within defined lightning protection zones.
All features
| Model Part Number | 961205 |
|---|---|
| Brand | Dehn |
Extended Product Information
FAQs
What is the primary function of the DEHN 961205?
The DEHN 961205 is a combined lightning current and surge arrester designed to protect low-voltage electrical installations from surges and direct lightning strikes.
What standards does this arrester comply with?
It complies with Type 1 and Type 2 standards according to EN 61643-11.
What is the maximum surge current it can handle?
It can handle a lightning impulse current of 25kA (10/350 µs).
Can this arrester be used for all types of electrical systems?
It is designed for low-voltage consumer installations operating at 230V AC and is intended for use within lightning protection zones 0A to 2.
How is the device mounted?
It is designed for mounting on a standard 35 mm top hat (DIN) rail.
What does 'RADAX FLOW' technology do?
RADAX FLOW is a technology that enables effective follow current limitation, preventing sustained electrical faults after a surge.
Does the DEHN 961205 have an integrated fuse?
Yes, it features an integrated backup fuse, which simplifies installation.
Troubleshooting
Device not signaling normal operation (if remote signaling is used)
Check the remote signaling circuit wiring and ensure it is correctly connected. Verify the status of the device itself for any visual indicators of fault.
Overheating or unusual noise
Immediately de-energize the system. Inspect the arrester for damage and check all electrical connections for tightness. Consult a qualified electrician.
Device appears damaged
Do not attempt to use a damaged device. Replace it with a new, compatible arrester and consult a qualified professional for inspection of the system.
Pros and Cons
Pros
- Provides protection against direct lightning strikes.
- Ensures high availability of electrical installations.
- Complies with rigorous European safety standards (EN 61643-11).
- Compact, modular design for easy integration.
- Effective follow current limitation.
Cons
- Requires specific installation within defined lightning protection zones (0A-2).
- Single-pole design requires multiple units for multi-phase systems.
- Requires careful consideration of conductor cross-sections for optimal performance.
Setup, Compatibility & Care
Setup:
- Ensure the power supply is switched off before installation.
- Mount the DEHN 961205 onto a standard 35 mm DIN rail.
- Connect the incoming power and grounding conductors using appropriate terminals, respecting the maximum conductor cross-section limits (50mm² solid/stranded, 35mm² fine-strand).
- If remote signalling is desired, connect the signaling circuit according to the manufacturer's instructions.
- Verify connections and ensure proper grounding.
- Restore power.
Compatibility:
- Designed for low-voltage consumer installations.
- Suitable for AC nominal voltage of 230V (maximum continuous voltage 255V).
- Intended for use at lightning protection zones 0A to 2.
Care:
- Regular visual inspection for any signs of damage or discoloration is recommended.
- Check the status indicator on the device (if applicable) for normal operation.
- Cleaning should only be performed with a dry cloth. Avoid moisture or cleaning agents.