Welcome to the ST-Shop Meter's, Drive's and Solar

Sourcetronic provides the right frequency inverter for every drive application. Whether it's a matter of efficient pumping, ventilating and compressing, or precise movement, processing, or machining, the number of application areas for frequency inverter is almost endless.  The ST8100series includes devices with rated outputs of 0.75 up to 7.5 kW, the ST7800series provides you with rated outputs from 11KW up to 160KW plus tailored solutions up to 630KW. With a high level of flexibility, functionality and engineering comfort, our systems cover all performance levels — from simple frequency converter tasks and coordinated drives through to motion control tasks controlled by smartphone app. 

Very low resistance ohmmeter MPK-253 is a portable "Heavy-Duty" instrument used to accurately measure resistances of  switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using  test currents from 1mA up to 10 A (MPK-203 up to 200 A). It uses the Kelvin-type, four-terminals measurement principle, thus eliminating errors caused by lead and contact resistances. Measurements accuracy is guaranteed by the state-of-the-art system for signal-amplification, offset-free and with long-term stability. Operation is very simple: connect - test - done !

ST2819 is an updated product of ST2817 RLC Meter. With high accuracy, wide measurement range, 6-digit resolution, brilliant grafic-display and test frequency up to 200KHz with the step of 0.01Hz, signal level from 5mV to 2V and DC internal bias voltage, the meter can be widely used for quality control on production line, incoming inspection, and high-accuracy measurement in lab. A perfect HANDLER interface, RS232C interface and GPIB interface make it easy to build an automatic component test system, communicate with the computer and record the test results.
 
A high voltage relay is used to operate at high voltages. Relay's are used in a number of different applications, such as test-systems and  process control. Electromechanical switching relays operates by passing a current through a wire wound coil to create a magnetic field which  is used to close the relay. Thus, relays act as electromechanical switches. The High Voltage Relay RL42 has two change over contacts and a  strong breaking capacity of 5.000 VA.