Siemens 6EP3321-7SB00-0AX0 SITOP PSU6200 120-240V AC 12V 2A Power Supply

The Siemens 6EP3321-7SB00-0AX0 is a SITOP PSU6200 stabilized power supply that converts a 120-240 V AC (or 120-240 V DC) input into a regulated 12 V DC output at 2 A, adjustable up to 12.9 V via potentiometer. It reaches 83.3% efficiency, holds a 150 ms minimum buffering time at rated output, and connects through push-in terminals on a 25 mm DIN-rail enclosure.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• EAC
• RCM
• SEMI F47
• CB
• Shipbuilding
• ABS
• DNV
• EPD

Selection Notes

The 150 ms minimum buffering time at rated output is markedly longer than the LOGO!Power line's hold-up, making the PSU6200 the better choice when a brief mains dip must not drop the 12 V rail even momentarily. Class I construction with a 3.5 mA max leakage current is a different safety class from the Class II LOGO!Power units, so grounding needs to be designed in rather than assumed. Push-in terminals instead of screw terminals speed up wiring on the input and output sides, and the 120-240 V AC/DC dual-mode input covers both AC mains and DC-bus feeding without a separate model.

Applications

Powers 12 V DC loads needing a longer power-fail ride-through than a basic supply provides - remote I/O, small HMI panels, or sensor networks - in cabinets already using SIMATIC ET 200SP-style push-in wiring, since the module also lists an ET 200SP identification label as an accessory.