Ziehl STWA4MH Current transformer 0 up to 60 A
The STWA4MH is a transmitter. It measures alternating current up to 60 A and possesses an RS485 interface (Modbus RTU). In this way, the measured analog current value is output digitally and can be directly processed by a PLC, an IPC or control computer. The current conductor to be measured is guided through an opening (Ã 11 mm). For small currents the sensitivity of the converter can be increased by multiple looping of the current-carrying conductor, e.g. a double looping, doubles the sensitivity. The measuring range of the STWA4MH is reduced accordingly by repeated loops. For the recording of any large currents the STWA4MH is simply looped into the secondary circuit of a large current transformer with a secondary 5 A (guide cable several times through STWA4MH).This text is machine translated.