View of the device

During thunderstorms electronic devices are very vulnerable to damages. Risk of over-voltage is present even in spots 1.5 km distant from the place where a lightning struck.

The LH Protector lowers the excess voltage to the safe level, according to European standards set for this type of equipment. It allows to avoid structural damage. The device does not need power supplying and does not interrupt data transmission.

- inter-wire protection voltage (threshold)	7.5 V
- line-ground protection voltage (threshold)	500 V
- maximum impulse voltage (peak-to-peak)	6 kV
- maximum current intensity of inter-wire surge	132 A (10 μs)
- maximum impulse power	3000 W
- protected UTP/FTP pairs	1-2, 3-6, 4-5, 7-8
- IN/OUT connectors	RJ45, shielded
- length of grounding cable	1.4 m
- dimensions	40x50x20 mm
- weight	50 g
- operating temperature range	-10°C ... +55°C

NOTE: If the protected line can suffer from over-voltages higher then the values above, preliminary security measures must be used.

Before beginning the installation, the electrical outlet grounding must function properly, and the protected device has to be correctly connected. If grounding fails, the protector and network will not work properly.

To avoid overvoltages the protector should be connected to grounding with resistance below 4 ohm. The connection should be screwed down or soldered. It is not allowed to use lightning conductors or gas pipes!!!

The device protects only the equipment to which it is directly connected. Lack of grounding in one of the computers connected to a concentrator can result in appearing voltage causing the protector to react.

Application diagram