The HTB 400-P from LEM is a Current Transducer with AC Input Current -400 to 400 A, DC Input Current -600 to 600 A, Output Voltage -4 to 4 V, Supply Voltage - 12 to 15 V, Accuracy 0.01. Tags: PCB Mount, AC Current Transducer, DC Current Transducer. More details for HTB 400-P can be seen below.