Siemens SITOP Power Supply

SITOP PSU100S 24 V/5 A Stabilized power supply input: 120/230 V AC, output: 24 V DC/5 A

Product Details




SITOP PSU100S 24 V/5 A Stabilized power supply input: 120/230 V AC, output: 24 V DC/5 A



1-phase AC

Supply voltage

● 1 at AC Rated value

120 V

● 2 at AC Rated value

230 V

● Note

Automatic range selection

Input voltage

● 1 at AC

85 ... 132 V

● 2 at AC

170 ... 264 V

Wide-range input


Overvoltage resistance

2.3 × Vin rated, 1.3 ms

Mains buffering at Iout rated, min.

20 ms; at Vin = 93/187 V

Rated line frequency 1

50 Hz

Rated line frequency 2

60 Hz

Rated line range

47 ... 63 Hz

Input current

● at rated input voltage 120 V

2.34 A

● at rated input voltage 230 V

1.36 A

Switch-on current limiting (+25 °C), max.

40 A

I²t, max.

1 A²·s

Built-in incoming fuse

T 3,15 A/250 V (not accessible)

Protection in the mains power input (IEC 898)

Recommended miniature circuit breaker: from 6 A characteristic C



Controlled, isolated DC voltage

Rated voltage Vout DC

24 V

Total tolerance, static ±

3 %

Static mains compensation, approx.

0.1 %

Static load balancing, approx.

1 %

Residual ripple peak-peak, max.

150 mV

Residual ripple peak-peak, typ.

30 mV

Spikes peak-peak, max. (bandwidth: 20 MHz)

240 mV

Spikes peak-peak, typ. (bandwidth: 20 MHz)

140 mV

Adjustment range

22.8 ... 28 V

Product function Output voltage adjustable


Output voltage setting

via potentiometer

Status display

Green LED for 24 V OK


Relay contact (NO contact, rating 60 V DC/ 0.3 A) for "24 V OK"

On/off behavior

Overshoot of Vout < 3 %

Startup delay, max.

0.3 s

Voltage rise, typ.

15 ms

Rated current value Iout rated

5 A

Current range

0 ... 6 A

● Note

6 A up to +45°C; +60 ... +70 °C: Derating 1.6%/K

Supplied active power typical

144 W

Short-term overload current

● on short-circuiting during the start-up typical

18 A

● at short-circuit during operation typical

18 A

Duration of overloading capability for excess current

● on short-circuiting during the start-up

800 ms

● at short-circuit during operation

800 ms

Parallel switching for enhanced performance


Numbers of parallel switchable units for enhanced performance



Efficiency at Vout rated, Iout rated, approx.

88 %

Power loss at Vout rated, Iout rated, approx.

16 W

Closed-loop control

Dynamic mains compensation (Vin rated ±15 %), max.

0.3 %

Dynamic load smoothing (Iout: 10/90/10 %), Uout ± typ.

3 %

Load step setting time 10 to 90%, typ.

1 ms

Load step setting time 90 to 10%, typ.

1 ms

Protection and monitoring

Output overvoltage protection

protection against overvoltage in case of internal fault Vout < 33 V

Current limitation

6 ... 7.1 A

Property of the output Short-circuit proof


Short-circuit protection

Constant current characteristic

Enduring short circuit current RMS value

● typical

7.1 A

Overcurrent overload capability in normal operation

overload capability 150 % Iout rated up to 5 s/min

Overload/short-circuit indicator



Primary/secondary isolation


Galvanic isolation

Safety extra-low output voltage Uout acc. to EN 60950-1 and EN 50178

Protection class

Class I

Leakage current

● maximum

3.5 mA

● typical

0.4 mA

CE mark


UL/cUL (CSA) approval

cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259; cCSAus (CSA C22.2 No. 60950-1, UL 60950-1)

Explosion protection

IECEx Ex nA nC IIC T4 Gc; ATEX (EX) II 3G Ex nA nC IIC T4 Gc; cULus Class I Div. 2 (ANSI/ISA-12.12.01-2007, CSA C22.2 No. 213-M1987) Group ABCD, T4; cCSAus (CSA C22.2 No. 213, ANSI/ISA-12.12.01) Class I, Div. 2, Group ABCD, T4

FM approval


CB approval


Marine approval


Degree of protection (EN 60529)



Emitted interference

EN 55022 Class B

Supply harmonics limitation

EN 61000-3-2

Noise immunity

EN 61000-6-2

Operating data

Ambient temperature

● during operation

-25 ... +70 °C

— Note

with natural convection

● during transport

-40 ... +85 °C

● during storage

-40 ... +85 °C

Humidity class according to EN 60721

Climate class 3K3, no condensation


Connection technology

screw-type terminals


● Supply input

L, N, PE: 1 screw terminal each for 0.5 ... 2.5 mm² single-core/finely stranded

● Auxiliary

Alarm signals: 2 screw terminals for 0.5 ... 2.5 mm²

Connections signaling contact

2 screw terminals for 0.5 ... 2.5 mm²

Width of the enclosure

50 mm

Height of the enclosure

125 mm

Depth of the enclosure

120 mm

Required spacing

● top

50 mm

● bottom

50 mm

● left

0 mm

● right

0 mm

Weight, approx.

0.5 kg

Product feature of the enclosure housing for side-by-side mounting



Snaps onto DIN rail EN 60715 35x7.5/15

Electrical accessories

Buffer module

Mechanical accessories

Device identification label 20 mm × 7 mm, pale turquoise 3RT1900-1SB20

MTBF at 40 °C

1 998 441 h

Other information

Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)


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Price Match. We are happy to match any genuine offer- please ask


Bank/Wire Transfer

Western union


Cheque (Check)

We accept currency: USD, or RMB or EUR


Company Information

Provide you high quality industrial control products with competitive price, it is our unremitting pursuit.

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4) Customer service.

You can contact us 24 hours for customer service.


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