Siemens 6ES7505-0RA00-0AB0 SIMATIC S7-1500 PS 60W 24/48/60V DC System Power Supply

Siemens 6ES7505-0RA00-0AB0 is a SIMATIC S7-1500 system power supply, type PS 60 W 24/48/60 V DC, that feeds the S7-1500 backplane bus with 60 W at a rated input of 24, 48, or 60 V DC. It accepts an input range of 19.2 to 72 V DC, includes reverse-polarity and short-circuit protection, and buffers a 20 ms mains failure.

Technical Specifications

Selection Notes

The tri-rated 24/48/60 V DC input lets one SKU serve three different plant DC bus voltages instead of stocking separate single-voltage supplies for each. Sixty watts of backplane infeed sizes this for mid-range S7-1500 racks carrying several I/O and communication modules; total backplane current draw of the intended rack should be checked against this 60 W budget before choosing it over a higher-wattage system power supply. The 20 ms mains-buffering time covers short DC-bus dips without forcing a controller restart, which matters where the DC feed itself (not just AC mains) can sag briefly.

Applications

S7-1500 rack backplane power in DC-supplied cabinets, such as solar, battery-backed, or 48 V DC plant buses, and retrofit panels standardizing on one multi-voltage power-supply SKU across differing DC rail voltages.