Railway products - AlHof

High Voltage DC Blocks
Description
Protection components for symmetric twisted pair data
lines.
The HUBER+SUHNER DC Block product line include
DC blocks and DC/DC blocks (inner and outer
conductor disconnected) for higher block voltages up
to 15 kV. They block the large voltage rises and highamplitude,
low-frequency surge voltages occurring
during regular electric railway operation along
railway lines. It provides sufficient safety – including
personnel safety – even if the overhead high voltage
lines fall to the ground.
Applications
DC Blocks for safety in tunnels.
Generally used along railway tracks and in road and train tunnels enabling safe and uninterrupted communication
support for critical services and operation like rescue, police, fire brigades and public radio services such as broadcasting,
mobile telephony and WLAN. Tunnel specific radio systems are transmitting and receiving via radiating
coaxial cables as antennas.
Features
• DC blocking configuration on centre and/or outer conductor
• Blocking DC up to 15 kV
• Broadband operation
• Frequency range up to 2500 MHz
• Low intermod performance
• Waterproof design
• Maintenance free
Specifications
Type Frequency range Blocking voltage Connectors
4 kV broadband high voltage DC block from 140 MHz to 2500 MHz 4000 V N and 7/16
4 kV broadband high voltage DC-DC block from 160 MHz to 2500 MHz 4000 V N and 7/16
15 kV broadband high voltage DC-DC block from 180 MHz to 2500 MHz 15000 V N and 7/16
For further technical details please refer to our data sheet.
110 HUBER+SUHNER