Phoenix Contact Data & Signal Surge Protectors
Communication or signal lines that enter or exit a building are at the highest risk of power surge transients being induced onto the interconnecting signal lines. Surge protection devices should be installed at the point-of-entry or at the equipment termination itself. They must be designed to clamp the excess transient voltage to safe levels sustainable by the equipment while at the same time, not interfere with the normal signaling voltages.
Phoenix Contact DATATRAB DT provide universal protection for high-speed networks up to 10 Gigabit Ethernet, networks with RS-485 interface and analog and digital interfaces for telecommunications, including DSL. DT-LAN-CAT6+ supports various data protocols at very high transmission speeds such as Ethernet, ISDN, Power over Ethernet (PoE), token ring and DS1.
More Information about Phoenix Contact Data & Signal Surge Protectors
Phoenix Contact TERMITRAB provides narrow and reliable protection for telecommunications interfaces. The protective circuit is optimized for VDSL applications. The compact surge protection solution protects against transients without influencing the wanted signal.
Phoenix Contact PLUGTRAB PT-IQ intelligent surge protection protects data cables against overvoltages. The protective circuit is specifically tailored to HF applications. All voltage-limiting devices in the protective circuit are constantly monitored. Pre-existing damage caused by frequent overvoltages is detected and indicated. Group remote signaling for all connected protected devices is available.
Surge Protection Basics
What causes power surges?
Lightning strikes are one of the most common causes of power surges and can affect an electrical system even if the strike occurs miles from the electrical source. Conductors buried underground can still transmit the energy of the strike to electrical equipment located indoors. Lightning rods and other grounding equipment can help, but do not completely eliminate the risk.
Switching equipment such as motors, transformers and other equipment can cause a sudden change in load, power loss and disconnection of circuit breakers. This sudden switching can cause overvoltage, leading to power surges. The closer the switching occurs to the electrical system, the more threat it will pose to the equipment.
Operations that a user performs can cause surges, but typically have a very short duration. Examples include: starting a motor, opening circuit breakers and welding equipment.
What is the best way to stop power surges?
By using transient surge suppressors, the problems associated with most transient surges can be eliminated. They provide protection by either blocking or shorting the voltage over its operating limit to ground, protecting circuits downstream of the suppressor. The best way to approach this is in tiers.
Tier 1 – The protection is closest to the incoming power source. This is the main protection for a particular location.
Tier 2 – This is in an area that will be protecting multiple devices that have branch protection. An electrical control panel would be an example of this type of application.
Tier 3 – Individual protection. In the case of an industrial control panel, this would be protection for each instrument entering the panel.