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Lightning Current Arrester - DEHN - 929045

Lightning Current Arrester - DEHN - 929045

The Dehn DEHNgate overvoltage protection device is a type dataline N-discharger with an impedance ...

Best current price£226.42from Tameson UK

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Tameson UKDehn Dehngate Lightning Current Arrester Dga Ag N - 929045
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£226.42
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Rapid Online - Rapid Electronics Ltd.DEHN 929045 DGA AG N Surge Protection 20kA Coax Lightning Arresters
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£272.00
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eBayDEHN DGA AG N Surge Protection 20kA Coax Lightning Arresters
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Product Information

Full details

This DEHN DEHNgate overvoltage protection device is designed for telecommunications and cable TV systems, particularly DVB-C and cable coax setups, to safeguard sensitive equipment from electrical surges. Its key benefit is robust protection against lightning-induced surges with a high discharge capacity. A potential caveat is its specific application, primarily for dataline protection within certain frequency ranges.

All features

Model Part Number929045
BrandDehn

Extended Product Information

FAQs

What is the primary function of this device?

The DEHN DEHNgate 929045 is an overvoltage protection device designed to protect dataline equipment, specifically DVB-C and cable coax systems, from lightning-induced surges and other transient overvoltages.

What is the maximum surge current this device can handle?

It can handle a nominal discharge surge current of 20kA (measured with an 8/20 µs waveform) and a lightning impulse current of 5kA (measured with a 10/350 µs waveform).

Can this device be used for standard power outlets?

No, this device is specifically designed for dataline protection in telecommunications and coaxial cable systems. It is not intended for use with standard AC power outlets.

Is the gas discharge tube replaceable?

Yes, the DEHN DEHNgate 929045 is equipped with a replaceable gas discharge tube, allowing for maintenance and restoration of protection after a significant surge event.

What is the impedance of this device?

The impedance of the DEHN DEHNgate 929045 is 50 Ohms.

What is the maximum continuous voltage rating?

The maximum continuous voltage rating for this device is 180V DC.

How do I connect this to my system?

It connects in-line using its N-connector. You will disconnect your existing coaxial cable, screw the DEHNgate onto one end, and then reconnect the cable to the other side of the DEHNgate.

Troubleshooting

No signal after installation

Verify that all coaxial cable connections are secure and properly made. Ensure the device is correctly oriented and not causing excessive signal attenuation. Check that the gas discharge tube is correctly seated.

Device appears damaged

Visually inspect the device for cracks, corrosion, or physical damage. If damage is found, replace the unit immediately and do not attempt to use it.

Intermittent signal loss

Check for loose connections or potential damage to the coaxial cable leading to or from the device. Ensure the grounding connection is robust.

Device overheats

Ensure the device is installed within its rated continuous load current (6A) and voltage (180V DC) limits. Overheating may indicate a fault or excessive current draw beyond specification.

Pros and Cons

Pros

  • Effective protection against high-energy surges.
  • Replaceable gas discharge tube for easy maintenance.
  • Suitable for broadband communication systems up to 2.5 GHz.
  • Compact and easy to install in-line.
  • Designed for professional telecommunications applications.

Cons

  • Primarily designed for dataline protection, not general power lines.
  • Requires specific N-type connectors for installation.
  • May require careful integration into existing system grounding.
  • Not suitable for DC systems exceeding 180V.
  • Replacement of gas discharge tube requires technical knowledge.

Setup, Compatibility & Care

Setup:

  1. Ensure the power to the connected equipment is turned off.
  2. Identify the coaxial cable line requiring protection.
  3. Disconnect the existing cable.
  4. Screw the DEHNgate 929045 onto the cable end using its N-connector.
  5. Reconnect the other end of the coaxial cable to the device.
  6. Ensure proper grounding connection is established as per local regulations and manufacturer guidelines.

Compatibility:

  • Designed for DVB-C and cable coax systems.
  • Operates within a frequency range of 0 to 2500MHz.
  • Compatible with systems operating at or below a maximum continuous voltage of 180V DC.
  • Requires coaxial cables with compatible N-type connectors.

Care:

  • This device is maintenance-free under normal operating conditions.
  • Periodically inspect the device and connections for any physical damage.
  • The gas discharge tube is replaceable. If performance degradation is suspected after a significant surge event, consult the manufacturer's documentation for replacement procedures.

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