Siemens 6EP14372BA20 Power Supply. Siemens Power Supply, Stabilized, 400 to 500 VAC Input, 24 VDC Output, 960 W, 2/1.7 A Input, 40 A Output, 50/60 Hz, DIN Rail Mount, 145 mm Width, 150 mm Depth, 145 mm Height. Additional Description: SIEM-6EP14372BA20 SITOP PSU300S,24V,40A,400-500V,3AC. Catalog Description: SITOP PSU300S 40A STABILIZED POWER SUPPLY INPUT 400-500 V 3AC OUTPUT 24 V DC/40A.