Siemens 6ES7407-0KA02-0AA0 SIMATIC S7-400 PS407 10A Wide-Range Power Supply

The Siemens 6ES7407-0KA02-0AA0 SIMATIC S7-400 PS407 power supply is a wide-range unit for 120 or 230 V AC or DC input at 47 to 63 Hz, delivering 5 V DC at 10 A to the backplane bus plus 24 V DC at up to 1 A. Typical active power input is 95 W. It occupies two rack slots and weighs 1.2 kg.

Technical Specifications

Certifications & Standards

• BIS

Selection Notes

The PS407 10 A doubles the backplane-bus current of the smaller wide-range unit while keeping the same 120/230 V AC/DC universal input, so it fits a rack with a heavier 5 V DC module load without changing the mains connection. Its 63 A inrush current is higher than the smaller unit's, a factor to check against upstream fuse or breaker curves at startup.

Applications

Its 47 to 63 Hz frequency tolerance and dual 120/230 V AC or DC rating let the same unit run on either voltage without rewiring, useful where a rack ships to sites with different mains standards. The 10 A backplane rating suits a moderately loaded two-segment S7-400 rack; confirm the module current sum against this rating before finalizing the module list.