Order No.

6EP1 621-2BA00

Technical specifications

Product

SITOP DC/DC

Power supply, type

12 V/2,5 A

Input

Input

DC voltage PELV/SELV

Supply voltage at DC

24

Input voltage at DC

18.5 … 30.2 V

Input current at nominal level of the input voltage 24 V nominal value

2.5 A

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

20 A

Duration of current limiting at 25 °C typical

5 ms

Built-in incoming fuse

not accessible

Protection in the mains power input (IEC 898)

Recommended miniature circuit breaker: 10 A, characteristic B

Output

Output

controlled, isolated DC voltage

Rated voltage Vout DC

12 V

Total tolerance, static ±

3 %

Static mains compensation, approx.

0.1 %

Static load balancing, approx.

0.4 %

Residual ripple peak-peak, max.

100 mV

Residual ripple peak-peak, typ.

50 mV

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

200 mV

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

50 mV

Adjustment range

12 … 14 V

Product feature output voltage adjustable

Yes

Output voltage setting

via potentiometer

Status display

Green LED for 12 V OK

Startup delay, max.

0.5 s

Voltage rise, typ.

300 ms

Rated current value Iout rated

2.5 A

Current range

0 … 2.5 A

short-term overload current at short-circuit during run-up typical

3.3 A

constant overload current at short-circuit during run-up typical

3.3 A

short-term overload current at short-circuit during operation typical

3.3 A

constant overload current at short-circuit during operation typical

3.3 A

Parallel switching for enhanced performance

Yes

Numbers of parallel switchable units for enhanced performance

2

Efficiency

Efficiency at Vout rated, Iout rated, approx.

83 %

Power loss at Vout rated, Iout rated, approx.

6.1 W

Closed-loop control

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

0.5 %

Dynamic load smoothing (Iout: 50/100/50 %), Uout ± typ.

3 %

Load step setting time 50 to 100%, typ.

5 ms

Load step setting time 100 to 50%, typ.

2 ms

Setting time maximum

5 ms

Protection and monitoring

Output overvoltage protection

< 24 V

Current limitation

3 … 3.6 A

Current limitation, typ.

3.3 A

Characteristic feature of the output short-circuit protected

Yes

Short-circuit protection

Constant current characteristic approx. 3.2 A

Enduring short circuit current Effective level typical

3.2 A

Overload/short-circuit indicator

LED red for "overload"

Safety

Primary/secondary isolation

Yes

Potential separation

Safety extra low output voltage Vout according to EN 60950-1

Protection class

Class II

CE mark

Yes

UL/CSA approval

Yes

UL/cUL (CSA) approval

cCSAus (UL 508, CSA22.2-107, UL60950-1, CSA22.2-60950-1)

Explosion protection

-

FM approval

No

FM approval

-

CB approval

No

Marine approval

-

Degree of protection (EN 60529)

IP20

EMC

Emitted interference

EN 55022 Class B

Supply harmonics limitation

-

Noise immunity

EN 61000-6-2

Operating data

Ambient temperature

• in operation

0 … 60 °C

• Note

with natural convection

Ambient temparature

• on transport

-40 … +85 °C

Ambient temparature

• in storage

-40 … +85 °C

Humidity class according to EN 60721

Climate class 3K3, no condensation

Mechanics

Connection technology

screw-type terminals

Connections

• Supply input

+, -: 1 screw terminal each for 0.5 ... 2.5 mm

• Output

+, -: 2 screw terminals each for 0.5 ... 2.5 mm

• Auxiliary

-

Width of the housing

32.5 mm

Height of the housing

125 mm

Depth of the housing

125 mm

Installation width

32.5 mm

Installation height

225 mm

Weight, approx.

0.32 kg

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

Yes

Type of mounting wall mounting

No

Type of fixing cap rail mounting

Yes

Type of mounting S7-300 rail mounting

No

Installation

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