Siemens 6EP3333-8SB00-0AY0 SITOP PSU8200 24V DC/5A Power Supply 120/230V AC Input

The Siemens SITOP PSU8200 (6EP3333-8SB00-0AY0) is a stabilized 24V DC/5A power supply that converts a 120/230V AC single-phase input into a regulated 24V DC output rated 120W, with automatic voltage-range selection and 93% efficiency. It buffers momentary mains dips for at least 35ms and mounts on a 35x7.5/15 DIN rail for SIMATIC and general 24V DC control-panel supply.

Technical Specifications

Certifications & Standards

• CE
• UL 508
• cULus
• EAC
• RCM
• CB Scheme
• ABS
• DNV

Selection Notes

With a 5A/120W rating, the 6EP3333-8SB00-0AY0 sits at the lower end of the PSU8200 family; choose a higher-current PSU8200 variant when the connected load exceeds 120W continuous, or parallel two units of this size (supported, per the datasheet) when more headroom or redundancy is needed. The relay-contact 24V OK signal (60V DC/0.3A NO contact) and adjustable output (24-28.8V via potentiometer) let it feed voltage-sensitive SIMATIC I/O directly while reporting loss of regulation back to a controller input.

Applications

Fits DIN-rail control cabinets for machine building, process instrumentation, and SIMATIC-based automation panels needing a compact single-phase 24V DC supply with mains-dip buffering.