APT-TH Series power transducers

The APT-TH Series power transducers monitor watt 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.

It is a one-piece solution for measuring power; no external current transformers are needed and installation is easy. The design of the APT-TH 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.

Other features include: three ample sensing windows — wire carrying 200 A fits easily; LED Indicator — shows correct phase relationship match; easy installation — DIN rail or panel mount; detect broken or missing tools or drill bits; monitor pumps to detect open intake or outflow lines, cavitation or failing bearings; measure wattage/horsepower of grinding and milling equipment to optimise feed rate; monitor equipment so that the constant output proportional to wattage consumed can be compared with utility bills for a cost per hour or cost per operation of a machine or process.