Siemens 6EP1434-2BA20 SITOP PSU300S Power Supply
Stabilized 24 V DC power supply for three-phase 400–500 V AC systems, rated for 10 A output and DIN-rail installation.
Product Overview
6EP1434-2BA20 converts a three-phase AC input into a regulated 24 V DC supply for control-panel loads. Its 10 A rated output supports 240 W, while a normally open relay contact reports the 24 V OK condition.
The unit mounts on a 35 mm DIN rail and provides separate screw terminals for three-phase input, protective earth, dual positive and negative outputs, and status signalling.
Technical Profile
Input and buffering
Output and reserve
Connections
Mechanical and ambient
Load Reserve and Status
Rated load
Plan continuous cabinet demand around the 24 V DC, 10 A rated output.
45 °C reserve
Up to 12 A is permitted while ambient temperature remains at or below +45 °C.
Short peaks
Extra Power supplies 150% rated current for up to five seconds per minute.
24 V OK
Use terminals 13–14 when the control system needs a power-status contact.
Panel Layout and Mounting
Enclosure and DIN-rail dimensions
The enclosure is 70 mm wide, 125 mm high and 120 mm deep. Allow the specified 225 mm mounting height and install the unit on a DIN rail to EN 60715, 35 × 7.5/15 mm.
Lifecycle
6EP1434-2BA20 is listed in the PM300 Active Product lifecycle phase.
FAQ
What should purchasing verify before ordering 6EP1434-2BA20?
Match the complete article number, three-phase 400–500 V AC input, 24 V DC / 10 A output, 70 mm enclosure width and the required 24 V OK signalling contact.
Can 6EP1434-2BA20 support a short load peak above 10 A?
Yes. The unit permits 12 A up to +45 °C and provides 150% Extra Power for up to five seconds per minute. The continuous load must still follow the stated temperature limits.
What panel space should be checked for 6EP1434-2BA20?
Verify the 70 × 125 × 120 mm enclosure, 70 × 225 mm installation envelope, DIN-rail format and room for the required natural-convection clearances.
Can two 6EP1434-2BA20 units be used in parallel?
Up to two units can be connected in parallel for increased power. Confirm equal output-voltage settings and a suitable distribution arrangement before energizing the pair.
Which wiring details matter when replacing 6EP1434-2BA20?
Record L1, L2, L3 and PE, verify 24 V polarity, check conductor sizes, and identify whether terminals 13–14 are used by the cabinet monitoring circuit.
From Model Check to Dispatch
A dedicated manager handles catalog-number checks, quotation details and order follow-up for industrial automation components.
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