Two-stage surge protection of connected RS485 bus device in Half-Duplex configuration with power line. The connection of the module allows to use the operating range of bus drivers according to the TIA/EIA-485-A standard in the range of -7 V to +12 V (common-mode voltage range). High-speed current protection of data line. We also offer other variants of HDSP series surge protection for RS485 bus as well as for other bus types and for protection of 2-wire and 3-wire sensors.

Surge arresters type T3 specially adapted for the protection of LED lights and for the protection of end devices of surge category I. The assembly of the product is designed directly to the lights and also offers the possibility to signal the surge protection status in one of two possible ways.

Impulse current and surge arresters of type T1+T2+T3. The biggest advantage is a serially arranged lightning arrester in each of the modules which eliminates leakage currents into the PEN conductor. Suitable for objects with considered level of protection  LPL III and LPL IV. Installion is done at the borderline of zones LPZ 0 – LPZ 1 and higher as close as possible to the entry point of the cable line to the building – the main switchboards.

Insulation Monitoring device HIG99 is designed for monitoring the insulation status of single-phase, multi-phase and direct ungrounded IT power supply systems. Device is also able to monitor combined IT power supply systems, type AC/DC, and is designed primarily for use on rail vehicles and industrial systems containing rectifiers, inverters and frequency converters.