This Union Connection Kit is for the 3 4" Powermite MT Valves. TOAM20 TypeB 4 20mA Rango de Presion:0 a 1" w.c. TypeB 4 20mA 500Vac) IP21 UL type 1 Frame size R9 with Modbus RTU Modbus communication capability Surface wall mounting with built in Choke + Safe Torque Off (STO) + Direct Torque Control (DTC) compatible with input voltages 380Vac 500Vac (400Vac 415Vac 440Vac 480Vac) (3 phase 3P) item code #3AUA0000211877 equivalent to ACS88001414A5J425 DATA SHEET This Union Connection Kit is for the 3 4" Powermite MT Valves