The Siemens 6EP3336-3SB00-0AX0 is a SITOP PSU4200 stabilized power supply delivering 24 V DC at 20 A, positioned as the modern replacement for the outgoing PSU100L platform. Push-in terminals reduce panel wiring effort, while 93% efficiency and a narrow 70 mm width deliver more power in less space than the 110 mm wide PSU100L it succeeds.

PSU4200 vs. PSU100L — What Improved

• 70 mm width vs. 110 mm on the PSU100L — saves 40 mm of DIN rail per unit
• 93% vs. 92% efficiency with 37 W power loss at rated load
• Push-in terminals replace screw terminals — faster assembly, vibration-resistant connection
• Electronic short-circuit protection with periodic restart attempts — no manual reset needed

Technical Specifications

Migration Note

This PSU4200 is the Siemens-recommended successor to the PSU100L 6EP1336-1LB00 (discontinued October 2025). For new designs requiring diagnostic interface and 150% extra-power capability, the PSU6200 6EP3336-7SB00-3AX0 provides those features at 95.5% efficiency in a similar 70 mm form factor.