Veederline APT-TH Series power transducers

The APT-TH Series power transducers are used to monitor the power consumption of three-phase loads. They provide an analog signal proportional to the active power consumed by the monitored load. The three current carrying conductors pass through the three windows of the top section and the matching voltage input at the terminals.

The product is a one-piece solution for measuring power; no external current transformers are needed and installation is easy. The design ensures that the transducer is always correctly orientated.

If connected improperly by mismatching the current and voltage inputs, or placing a conductor through the sensing window back to front rather than front to back, the LED will change colour from green to amber. The LED will also turn amber if the phase A conductor is placed through the phase B sensing window, or if power factor is lower than 0.50.

The three sensing windows are large enough for a conductor of up to 200 A and the unit is easily installed as DIN rail or panel mount.