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Order No.

6EP1 436-2BA10

Input

3-phase AC

Rated voltage U_inrated

400-500 V AC
wide-range input

Voltage range

340 ... 550 V

Overvoltage strength

2.3 x U_in rated, 1.3 ms

Mains buffering at I_out rated

> 6 ms (at VU_in = 400 V)

Rated line frequency, rated line frequency range

50/60 Hz; 47 ... 63 Hz

Rated current I_inrated

1.2 - 1.0 A

Switch-on current limitation (+25 °C)

< 36 A

I²t

< 0.9 A²s

Built-in incoming fuse

None

Required protection in the mains supply conductor

3-pole coupled miniature circuit breaker 6 ... 16 A Characteristic C or circuit breaker 3RV1021-1DA10, setting 3 A or 3RV1721-1DD10 (UL 489)

Output

Controlled, isolated DC voltage

Rated voltage U_outrated

24 V DC

Total tolerance

±3 %

• Static line smoothing

Approx. ±0.5%

• Static load smoothing

Approx. ±1%

Residual ripple

< 150 mV_pp

Spikes (bandwidth approx. 20 MHz)

< 240 mV_pp

Adjustment range

24 ... 28.0 V (max. 480 W)

Status indicator

24 V OK = green LED

Signaling

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

On/Off behavior

No overshoot of U_out (soft start)

Startup delay/
voltage rise

< 1.5 s/typ. 30 ms

Rated current I_out rated

20 A

Current range

• Up to +60 °C

0 ... 20 A

• Derating

24 A (to +45 °C)

10 A (to +70 °C)

Dynamic overcurrent on

• Power-up on short-circuit

Approx. 35 A for 100 ms

• Short-circuit during operation

Approx. 35 A for 100 ms

Parallel switching for enhanced performance

Yes, 2 units

Efficiency

Efficiency at U_out rated, I_{out rated}

Approx. 91%

Power loss at U_out rated, I_{out rated}

Approx. 47 W

Closed-loop control

Dynamic line smoothing (U_in rated ±15%)

< 3 % U_out

Dynamic load smoothing (I_out: 50/100/50 %)

Typ. ±3% U_out

Load step settling time

• 50 to 100%

< 10 ms (typ. 2 ms)

• 100 to 50%

< 10 ms (typ. 2 ms)

Protection and monitoring

Output overvoltage protection

Yes, according to EN 60950

Current limitation

Typ. 25 A, overload capability 150%I_out rated up to 5 s/min

Short-circuit protection

Electronic shutdown, automatic restart

Sustained short-circuit current rms value

Approx. 7 A

Overload/short-circuit indicator

-

Safety

Primary/secondary isolation

Yes, safety extra low output voltage U_out according to EN 60950-1 and EN 50178

Safety class

Class I

Leakage current

< 3.5 mA (typ. 1 mA)

Safety test

Yes; CB scheme

CE marking

Yes

UL/cUL (CSA) approval

cULus-listed (UL 508, CSA 22.2 No. 107.1) File E197259; cCSAus (CSA C22.2 No. 60950-1, UL 60950-1)

Protection against explosion

ATEX EX II 3G Ex nAC IIC T4

Degree of protection (EN 60529)

IP20

EMC

Emitted interference

EN 55022 Class B

Supply harmonics limitation

EN 61000-3-2

Noise immunity

EN 61000-6-2

Operating data

Ambient temperature range

0 ... +60 °C with natural convection

Transport and storage temperature range

-40 ... +85°C

Humidity class

Climate class 3K3 according to 
EN 60721, no condensation

Mechanics

Connections

• Supply input L1, L2, L3 PE

1 screw-type terminal each for 0.2 mm ... 4 mm²solid/finely stranded

• Output +

2 screw-type terminals for 0.2 ... 4 mm²

• Output -

2 screw-type terminals for 0.2 ... 4 mm²

• Alarm signals

2 screw-type terminals for 0.14 ... 1.5 mm²

Dimensions (W x H x D) in mm

90 x 145 x 150

Weight, approx.

1.6 kg

Mounting

Can be snapped onto standard mounting rail EN 60715 35x7.5/15

Accessories

Device labeling plates (3RT1900-1SB20)