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Siemens 6AG1434-2BA20-7AA0 — Industrial PCs

Siemens 6AG1434-2BA20-7AA0 SITOP PSU8200 10A Power Supply

MPN6AG1434-2BA20-7AA0
Active

Siemens SITOP PSU8200, 6AG1434-2BA20-7AA0, 24-28 V DC/10 A regulated power supply, 3-phase 400-500 V AC input, 91% efficiency, EN 55022 Class B.

Siemens 6AG1434-2BA20-7AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1434-2BA20-7AA0 key specifications
ParameterValue
Type of signal at outputRelay contact (NO contact, rating 60 V DC/ 0.3 A) for "24 V OK"
Type of electrical connectionscrew-type terminals
Type of output voltage settingvia potentiometer; max. 240 W
Type of the power supply network3-phase AC
Voltage curve at outputControlled, isolated DC voltage
Adjustable output voltage24 ... 28 V
At rated input voltage 4000.7 A
At rated input voltage 5000.6 A
Output voltage at DC rated value24 V
On slow fluctuation of input voltage0.1 %
Relative overall tolerance of the voltage3 %
Product function output voltage adjustableYes

All specifications

6AG1434-2BA20-7AA0 additional specifications
ParameterValue
Behavior of the output voltage when switching onOvershoot of Vout < 5 %
At rated output voltage for rated value of the output current typical23 W
Relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical1 %
Design of Short-Circuit protectionConstant current characteristic
Property of the output Short-Circuit proofYes
Current limitation of inrush current at 25 °C maximum20 A
Buffering time for rated value of the output current in the event of power failure minimum7 ms
Supplied active power typical240 W
Number of Parallel-Switched equipment resources for increasing the power2
Line frequency47 ... 63 Hz
Depth of the enclosure120 mm
Width of the enclosure70 mm
Height of the enclosure125 mm
Product feature of the enclosure housing can be lined upYes
In horizontal mounting position during operation-40; Startup @ -25 °C ... +70 °C; with natural convection
Installation altitude at height above sea level maximum6 000 m
Ambient condition relating to ambient temperature - air pressure - installation altitudeIn case of operation at altitudes of 2000 - 6000 m above sea level: Output power derating of -7.5 %/1000 m or reduction of the ambient temperature by 5 K/1000 m
MTBF at 40 °C500 000 h
CE markingYes
Typical13 A
At inputL1, L2, L3, PE: 1 screw terminal each for 0.05 ... 2.5 mm² single-core/finely stranded
At output+, -: 2 screw terminals each for 0.2 ... 2.5 mm²
Rated range0 ... 10 A; 12 A up to +45°C; +60 ... +70 °C: Derating 5%/K
Rated value10 A
1 rated value50 Hz
2 rated value60 Hz
In the feederRequired: 3-pole connected miniature circuit breaker 3 ... 16 A characteristic C or circuit breaker 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489-listed, DIVQ)
Initial value340 V
MountingSnaps onto DIN rail EN 60715 35x7.5/15
Full-Scale value550 V
I2t value maximum0.5 A²·s
Other informationSpecifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)
Galvanic isolationSafety extra-low output voltage Uout acc. to EN 60950-1 and EN 50178, transformer acc. to EN 61558-2-16
Maximum rated value500 V
Minimum rated value400 V
Protection class IPIP20
Bridging of equipmentYes
Efficiency in percent91 %
Electrical accessoriesredundancy module, buffer module, selectivity module, DC UPS
For auxiliary contacts13, 14 (alarm signal): 1 screw terminal each for 0.2 ... 2.5 mm²
Mechanical accessoriesDevice identification label 20 mm × 7 mm, pale turquoise 3RT1900-1SB20
Response delay maximum1.5 s
For emitted interferenceEN 55022 Class B
For interference immunityEN 61000-6-2
Load step 10 to 90% typical4 ms
Load step 90 to 10% typical4 ms
During storage and transport-40 ... +85 °C
Load step 100 to 50% typical3 ms
Load step 50 to 100% typical3 ms
At output 1 at DC rated value24 V
For mains harmonics limitationEN 61000-3-2
Design of input wide range inputYes
On slow fluctuation of ohm loading0.15 %
Operating resource protection classClass I
Design of the overvoltage protectionprotection against overvoltage in case of internal fault Vout < 35 V
Display version for normal operationGreen LED for 24 V OK
Operating condition of the mains bufferingat Vin = 400 V
Galvanic isolation between input and outputYes
Overcurrent overload capability in normal operationoverload capability 150 % Iout rated up to 5 s/min
Chemical resistance to commercially available cooling lubricantsYes; incl. diesel and oil droplets in the air
Product conformity of the coating qualification and performance of electrical insulating compound for printed board assemblies according to IPC-CC-830AYes; Conformal Coating, Class A

Product details

The 6AG1434-2BA20-7AA0: Load transient response is tight: 4 ms typical for a 10-to-90% step and 3 ms for a 100-to-50% step, so the supply handles sudden motor or solenoid pulls without dropping out. Galvanic isolation meets SELV per EN 60950-1 and EN 50178, with a safety extra-low voltage output. That means the 24 V bus is isolated from the mains — useful for protecting downstream controls from line transients.

Mounting, wiring, and feeder protection

Snaps onto DIN rail EN 60715 35×7.5/15. Enclosure is 70 mm wide × 125 mm high × 120 mm deep — fits a standard 4-module slot. Input terminals: one screw clamp per phase (, L2, L3) and PE, accepting 0.05–2.5 mm². Output: two screw terminals each for + and -, 0.2–2.5 mm². Auxiliary alarm relay terminals also provided (13, 14, 0.2–2.5 mm²).

Listed as current-production (active); no end-of-life notice. The PSU carries CE marking and meets EN 55022 Class B for conducted and radiated emissions — low enough for residential limits, so it won't hash up nearby sensors or comms lines in an industrial cabinet. Compatible with SITOP add-on modules: redundancy, buffer, selectivity module, and DC UPS. If your BOM calls for a single-source power rail, this PSU slots into that ecosystem.

Frequently asked questions

What is the maximum output current I can draw continuously?

The continuous rated current is 10 A. At ambient temperatures up to 45 °C you can draw 12 A. Above 60 °C the output must be derated by 5% per K. The 16 A figure is a dynamic maximum, not a steady-state rating.

Can I adjust the output voltage?

Yes, the output voltage is adjustable from 24 to 28 V DC, allowing line-drop compensation for long cable runs.

What upstream protection does this supply require?

A 3-pole miniature circuit breaker (3–16 A, characteristic C) or a Siemens 3RV2011 (setting 3 A) is required in the feeder. The PSU has no internal branch-circuit protection.

Does this power supply have galvanic isolation?

Yes, it provides safety extra-low voltage (SELV) output per EN 60950-1 and EN 50178, with transformer isolation per EN 61558-2-16.

MPN
6AG1434-2BA20-7AA0