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Siemens 6AG1331-6SB00-7AY0 — PLC I/O & Expansion Modules

Siemens 6AG1331-6SB00-7AY0 Power Supply, 24 VDC, 1.3 A

MPN6AG1331-6SB00-7AY0
Active

Siemens SITOP PSU8200, 6AG1331-6SB00-7AY0, 24 VDC / 1.3 A power supply, 110-300 VDC input, DIN rail mount, IP20.

$148.59 – $348.37Ref. price · indicative, final on quote
Siemens 6AG1331-6SB00-7AY0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1331-6SB00-7AY0 key specifications
ParameterValue
Fuse protection typeinternal
Type of electrical connectionscrew-type terminals
Type of output voltage settingvia potentiometer
Type of the power supply network1-phase AC or DC
Voltage curve at outputControlled, isolated DC voltage
Adjustable output voltage22.2 ... 26.4 V
At rated input voltage 1200.7 A
At rated input voltage 2300.35 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

6AG1331-6SB00-7AY0 additional specifications
ParameterValue
Behavior of the output voltage when switching onNo overshoot of Vout (soft start)
At rated output voltage for rated value of the output current typical5 W
Relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical0.2 %
Design of Short-Circuit protectionConstant current characteristic
Measuring point for output current50 mV =^ 1.3 A
Property of the output Short-Circuit proofYes
Current limitation of inrush current at 25 °C maximum25 A
Buffering time for rated value of the output current in the event of power failure minimum40 ms
Supplied active power typical31.2 W
Number of Parallel-Switched equipment resources for increasing the power2
Line frequency47 ... 63 Hz
Depth of the enclosure53 mm
Width of the enclosure36 mm
Height of the enclosure90 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 °C3 094 996 h
CE markingYes
Top20 mm
Left0 mm
Right0 mm
At DC110 ... 300 V
Bottom20 mm
Typical1.7 A
At inputL, N: 1 screw terminal each for 0.5 ... 2.5 mm2 single-core/finely stranded
At output+, -: 2 screw terminals each for 0.5 ... 2.5 mm²
Rated range0 ... 1.3 A; +55 ... +70 °C: Derating 2%/K
Rated value1.3 A
1 rated value50 Hz
2 rated value60 Hz
In the feederRecommended miniature circuit breaker: from 6 A characteristic B or from 2 A characteristic C
Initial value85 V
MountingSnaps onto DIN rail EN 60715 35x7.5/15, direct mounting in different mounting positions
Full-Scale value264 V
I2t value maximum0.8 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 value240 V
Minimum rated value100 V
Protection class IPIP20
Bridging of equipmentYes
Efficiency in percent86 %
Response delay maximum0.5 s
For emitted interferenceEN 55022 Class B
For interference immunityEN 61000-6-2
Load step 10 to 90% typical1 ms
Load step 90 to 10% typical1 ms
During storage and transport-40 ... +85 °C
At output 1 at DC rated value24 V
Design of input wide range inputYes
During NO-Load operation maximum0.3 W
On slow fluctuation of ohm loading0.1 %
Operating resource protection classClass II (without protective conductor)
Design of the overvoltage protectionYes, according to EN 60950-1
Display version for normal operationGreen LED for output voltage OK
Operating condition of the mains bufferingat Vin = 187 V
Galvanic isolation between input and outputYes
Overcurrent overload capability when switching on150% Iout rated typ. 200 ms
Overcurrent overload capability in normal operationoverload capability 150% Iout rated typ. 200 ms
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

DIN rail power supply for 24 VDC loads

The Siemens 6AG1331-6SB00-7AY0 is a 24 VDC power supply rated 1.3 A continuous, with a maximum output of 1.7 A. It accepts a DC input from 110 V to 300 V DC, making it suitable for industrial control panels where a stable 24 V bus is needed for PLC I/O, sensors, and actuators. The output voltage is adjustable from 22.2 V to 26.4 V, allowing compensation for voltage drop on long cable runs to remote I/O racks. Required clearance above and below is 20 mm; no side clearance needed.

Output performance and derating

Rated 1.3 A at 24 VDC, the supply delivers 86 % efficiency. Above 55 °C ambient, derate the output by 2 % per Kelvin up to 70 °C. Load step response is 1 ms typical for both 10-to-90 % and 90-to-10 % steps, meaning the output recovers quickly when a valve or contactor coil energizes. The internal fuse is rated for 0.8 A²·s maximum I2t, and the recommended feeder protection is a miniature circuit breaker from 6 A characteristic B or from 2 A characteristic C.

Isolation and compliance

Galvanic isolation provides safety extra-low output voltage (SELV) per EN 60950-1 and EN 50178, so the 24 VDC output is safe to touch and suitable for powering field devices in dry indoor locations. EMC compliance covers both emission (EN 55022 Class B) and immunity (EN 61000-6-2), which is the standard for industrial environments. CE marking is present. Protection class is IP20 — the unit is not sealed against moisture or dust ingress and must be installed inside a rated enclosure.

Current production, sourced to order

MTBF at 40 °C is 3,094,996 hours.

Frequently asked questions

What certifications does 6AG1331-6SB00-7AY0 have?

CE marking is confirmed. The output meets SELV requirements per EN 60950-1 and EN 50178. EMC compliance covers EN 55022 Class B emission and EN 61000-6-2 immunity.

MPN
6AG1331-6SB00-7AY0