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Siemens 6AG1437-8SB00-7AY0 — Industrial PCs

Siemens 6AG1437-8SB00-7AY0 SITOP PSU8200 24V 40A

MPN6AG1437-8SB00-7AY0
Active

Siemens SITOP PSU8200, 40 A, 24-28 V DC output, 400-500 V AC 3-phase input, 94% efficiency, IP20, DIN rail mount.

Siemens 6AG1437-8SB00-7AY0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1437-8SB00-7AY0 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. 960 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 4002.1 A
At rated input voltage 5001.7 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

6AG1437-8SB00-7AY0 additional specifications
ParameterValue
Behavior of the output voltage when switching onminimal overshooting (< 2 %)
At rated output voltage for rated value of the output current typical66 W
Relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical1 %
At Short-Circuit during operation25 ms
Design of Short-Circuit protectionAlternatively, constant current characteristic approx. 44 A or latching shutdown
At Short-Circuit during operation typical120 A
Property of the output Short-Circuit proofYes
Display version for overload and short circuitLED yellow for "overload", LED red for "latching shutdown"
On Short-Circuiting during the Start-Up typical44 A
Current limitation of inrush current at 25 °C maximum13 A
Buffering time for rated value of the output current in the event of power failure minimum10 ms
Supplied active power typical960 W
Number of Parallel-Switched equipment resources for increasing the power2
Line frequency45 ... 65 Hz
Depth of the enclosure150 mm
Width of the enclosure135 mm
Height of the enclosure145 mm
Product feature of the enclosure housing can be lined upYes
In horizontal mounting position during operation-25 ... +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 °C517 015 h
CE markingYes
Top40 mm
Left0 mm
Right0 mm
Bottom40 mm
Typical0.6 mA
At inputL1, L2, L3, PE: 1 screw terminal each for 0.5 ... 4 mm² single-core/finely stranded
At output+: 2 screw terminals each for 0.5 ... 16 mm²; -: 3 screw terminals each for 0.5 ... 16 mm²
Rated range0 ... 40 A; +60 ... +70 °C: Derating 4%/K
Rated value40 A
1 rated value50 Hz
2 rated value60 Hz
In the feederRequired: 3-pole connected miniature circuit breaker 10 ... 16 A characteristic C or circuit breaker 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489)
Initial value320 V
MountingSnaps onto DIN rail EN 60715 35x15
Full-Scale value575 V
I2t value maximum2.24 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
Maximum rated value500 V
Minimum rated value400 V
Protection class IPIP20
Bridging of equipmentYes; switchable characteristic
Efficiency in percent94 %
Electrical accessoriesBuffer module
For auxiliary contacts13, 14 (alarm signal), 15, 16 (Remote): 1 screw terminal each for 0.05 ... 2.5 mm²
Mechanical accessoriesDevice identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20
Response delay maximum0.1 s
For emitted interferenceEN 55022 Class B
For interference immunityEN 61000-6-2
During storage and transport-40 ... +85 °C
At output 1 at DC rated value24 V
For mains harmonics limitationEN 61000-3-2
Design of input wide range inputYes
During NO-Load operation maximum4 W
On slow fluctuation of ohm loading0.2 %
Operating resource protection classClass I
Design of the overvoltage protection< 31.8 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

What This Is and What It Pulls

The 6AG1437-8SB00-7AY0: Rated 40 A continuous at 50/60 Hz, with a 0–40 A full-scale range. Derating applies above 60 °C: 4%/K up to 70 °C. The output is adjustable, so you can trim it to 24 V or bump it to 28 V for longer cable runs.

Not a Drop-In for Older SITOP Generations

The PSU8200 has a 150 mm depth and requires 40 mm top clearance. Input uses single screw terminals per phase.

Compliance and Cabinet Fit

CE marked, EN 55022 Class B emissions (suitable for residential/commercial environments), EN 61000-6-2 immunity, and safety extra-low voltage per EN 60950-1 and EN 50178. Protection class IP20 – so mount inside a cabinet. Fastens onto standard DIN rail EN 60715 35x15. Physical dimensions: 135 mm wide, 145 mm high, 150 mm deep. The spec calls for 40 mm free space above the unit for proper ventilation – factor that into your enclosure layout.

Frequently asked questions

What is 6AG1437-8SB00-7AY0's listed top clearance (40 mm)?

The spec requires 40 mm free space above the unit for proper ventilation. This is a minimum clearance for convection cooling; reducing it may cause derating.

What compliance documentation does this brand provide for 6AG1437-8SB00-7AY0?

It carries CE marking, EN 55022 Class B for emitted interference, EN 61000-6-2 for immunity, and safety extra-low voltage (SELV) per EN 60950-1 and EN 50178. The protection class is IP20.

What are the output specs?

Adjustable output from 24 V to 28 V DC, rated 40 A continuous. Efficiency 94%. Output is controlled, isolated DC voltage. Includes a relay contact (NO, 60 V DC/0.3 A) for a '24 V OK' signal.

MPN
6AG1437-8SB00-7AY0