ESFA maintains state-of-the-art R&D, Manufacturing and Distribution facilities to continually provide the highest level of quality in our products and services. Our products include the latest technological advances thanks to our advanced Engineering and Design Department. We provide high quality, versatile and extremely capable products in these areas: - MEDIUM AND LOW VOLTAGE ADVANCED PROTECTION RELAYS All of our relays incorporate new industry trends: remote communication, more than enough protection and control functions, self-designed interface software for control of each device etc., all in a competitive package. - MULTI-FUNCTION INDUSTRIAL POWER AND ENERGY METERS Our smart electricity meters are designed for periodic gathering data and monitoring real-time energy usage, detecting power quality anomalies, protecting low voltage systems, and recording current and voltage waveforms. In fact, they are the powerful engines behind the intelligent grid. - PRIMARY TEST of HIGH VOLTAGE EQUIPMENT Our product range includes test systems for power transformers, current and voltage transformers, circuit breakers, rotating machines, power lines, and grounding systems. We also have a special device to online accurately measure the voltage transformer error and to calibrate its extra ratio error. From day one, ESFA team has focused on providing high-quality products and service in every area of its business.