Profile: PD Devices Ltd. is a supplier of custom-designed solutions. We are an ISO 9001: 2000 certified company. We provide rail transport, buildings & services, electrical power generation & distribution, data networks & telecoms and metal oxide varistors. We offer specialized range of products designed to address the protection requirements of both above and below ground track side supply, infrastructure and signaling. Data networks & telecoms are designed to provide protection as standalone modules, or in selective combination for full data and power line coverage. Power supply networks & electronics systems with high component densities and low withstand semiconductors, demand an effective method of over-voltage protection.