Weidmuller Datasheets for Signal Isolators

Signal isolators provide electrical (galvanic) isolation between the input and output circuits. They couple the signal to the output through a transformer or optical isolator. Signal isolators also break the direct electrical (galvanic) path between two or more loop points. They are used to protect against dangerous measured-variable voltages and provide increased protection from surges and spikes.
Signal Isolators: Learn more

Product Name Notes
The ACT20X HDI SDO S / 2HDI-2SDO-S isolating switch amplifiers are specially designed for recording NAMUR sensor signals and digital switching signals which originate from Ex zone 0. Negative-switching (NPN)...
The ACT20X-SDI-HDO/2SDI- 2HDO valve control modules are controlled from the safe zone on the input side by the switching signals (NPN, PNP) and provide digital outputs to switch actuators (solenoids,...
Universal signal isolating converters/trip amplifiers have the option on the input side for recording any standardised current/voltage signals, temperature measurements from 2/3/4-wire RTD sensors, conventional thermocouples or linear and non-linear...
Weidmüller's process instruments from the AR, UPI, R and DPA series are part of a wide-ranging line of innovative products designed for analogue signal processing. These instruments are specifically designed...