| SITOP PSU300M 20 A STABILIZED POWER SUPPLY INPUT: 400-500 V 3 AC OUTPUT: 24 V DC/20 A |
| Technical specifications | |
| Product | SITOP PSU300M |
| Power supply, type | 24 V/20 A |
| Input | |
| Input | 3-phase AC |
| Rated voltage value Vin rated | 400 V…500 V |
| Voltage range | 320 V…575 V |
| Wide-range input | Yes |
| Mains buffering at Iout rated, min. | 15 ms |
| Mains buffering | at Vin = 400 V |
| Rated line frequency | 50 Hz/60 Hz |
| Rated line range | 47 Hz...63 Hz |
| Input current / at nominal level of the input voltage 400 V | 1.2 A |
| Input current / at nominal level of the input voltage 500 V | 1 A |
| Switch-on current limiting (+25 °C), max. | 18 A |
| I²t, max. | 0.8 A²·s |
| Built-in incoming fuse | none |
| Protection in the mains power input (IEC 898) | Required: 3-pole connected miniature circuit breaker 6 ... 16 A characteristic C or circuit breaker 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489) |
| Output | |
| Output | controlled, isolated DC voltage |
| Rated voltage Vout DC | 24 V |
| Total tolerance, static ± | 3 % |
| Static mains compensation, approx. | 0.1 % |
| Static load balancing, approx. | 0.2 % |
| Residual ripple peak-peak, max. | 100 mV |
| Spikes peak-peak, max. (bandwidth: 20 MHz) | 200 mV |
| Adjustment range | 24 V…28.8 V |
| Product feature / output voltage adjustable | Yes |
| Output voltage setting | via potentiometer |
| max. 480 W |
| Status display | Green LED for 24 V OK |
| Signaling | Relay contact (NO contact, rating 60 V DC/ 0.3 A) for "24 V OK" |
| On/off behavior | No overshoot of Vout (soft start) |
| Startup delay, max. | 2.5 s |
| Voltage increase time / of the output voltage / maximum | 500 ms |
| Rated current value Iout rated | 20 A |
| Current range | 0 A…20 A |
| 14 A (at +70 °C) |
| delivered active power / typ. | 480 W |
| constant overload current / at short-circuit during run-up / typical | 23 A |
| short-term overload current / at short-circuit during operation / typical | 60 A |
| Duration of overloading ability for excess current / on short-circuiting during the operational phase | 25 ms |
| Parallel switching for enhanced performance | Yes |
| switchable characteristic |
| Numbers of parallel switchable units for enhanced performance | 2 |
| Efficiency | |
| Efficiency at Vout rated, Iout rated, approx. | 93 % |
| Power loss at Vout rated, Iout rated, approx. | 36 W |
| Closed-loop control | |
| Dynamic mains compensation (Vin rated ±15 %), max. | 1 % |
| Dynamic load smoothing (Iout: 50/100/50 %), Uout ± typ. | 2 % |
| Load step setting time 50 to 100%, typ. | 2 ms |
| Load step setting time 100 to 50%, typ. | 2 ms |
| Setting time / maximum | 10 ms |
| Protection and monitoring | |
| Output overvoltage protection | < 35 V |
| Current limitation, typ. | 23 A |
| Characteristic feature of the output / short-circuit protected | Yes |
| Short-circuit protection | Alternatively, constant current characteristic approx. 23 A or latching shutdown |
| Enduring short circuit current / Effective level / typical | 23 A |
| overload capability 150 % Iout rated up to 5 s/min |
| Overload/short-circuit indicator | LED yellow for "overload", LED red for "latching shutdown" |
| Safety | |
| Primary/secondary isolation | Yes |
| Potential separation | Safety extra low output voltage Vout according to EN 60950-1 and EN 50178 |
| Protection class | Class I |
| stray current / maximum | 3.5 mA |
| stray current / typical | 0.9 mA |
| CE mark | Yes |
| UL/CSA approval | Yes |
| UL/cUL (CSA) approval | cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
| Explosion protection | in preparation |
| FM approval | - |
| CB approval | No |
| Marine approval | GL and ABS in process |
| 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 / in operation | -25 °C…70 °C |
| with natural convection |
| Ambient temparature / on transport | -40 °C…85 °C |
| Ambient temparature / in storage | -40 °C…85 °C |
| Humidity class according to EN 60721 | Climate class 3K3, no condensation |
| Mechanics | |
| Connection technology | screw-type terminals |
| Connections / Supply input | L1, L2, L3, PE: 1 screw terminal each for 0.2 ... 4 mm² single-core/finely stranded |
| Connections / Output | +, -: 2 screw terminals each for 0.2 ... 4 mm² |
| Connections / Auxiliary | 13, 14 (alarm signal): 1 screw terminal each for 0.14 ... 1.5 mm² |
| Width / of the housing | 70 mm |
| Height / of the housing | 125 mm |
| Depth / of the housing | 125 mm |
| Installation width | 70 mm |
| Mounting height | 225 mm |
| Weight, approx. | 1.2 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 |
| Electrical accessories | Buffer module |
| Mechanical accessories | Device identification label 20 mm × 7 mm, pastel-turpuoise 3RT1900-1SB20 |
| Last change: | Sep 21, 2011 |
