ATCH series adaptive true RMS current transducers ($169.00) monitor electric heat zero-crossing burst fired SCR controllers, provide fast response and are ideal for electrical heater applications. 3ACT/3ACTR Series AC 3-phase current transducers (from $295.00) monitor three-phase loads, motors, machines or buildings. The large triple-aperture fixed core design has three current outputs and a fourth output for the average of the three. ACTS series AC current sensors ($125.00) combine a current operated switch and transducer and provides an analog output and a solid-state switched output which changes state when the current exceeds setpoint or falls below normal running current. VADT series AC/DC voltage transducers ($142.00) are high-performance True RMS sensing for AC voltage in single-phase or 3-phase installations and DC voltage sensing in DC powered installations.