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AC1257
Marke: IFM
- Reliably power supply for modules, sensors and actuators
- High noise immunity and sufficient power reserves for the compensation of current peaks
- Safe decoupling of interferences from the primary supply
- Space-saving design
- Low heating of the control cabinet due to high efficiency
| Operating voltage tolerance [%] | 25...35 | |
|---|---|---|
| Nominal voltage DC [V] | 24 | |
| Input voltage DC [V] | 24 | |
| Protection class | III | |
| Overvoltage protection | yes; (< 36 V) | |
| Max. power-on delay time [ms] | 650 | |
| Output voltage AS-i [V] | 30.5 | |
| Output power (permanent) [W] | 122 | |
| Output power (peak) [W] | 134 | |
| Note on output power (peak) [W] |
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| Power reserve [%] | 10 | |
| Number of output circuits | 1 | |
| Output current AS-i [A] | 4 | |
| Max. residual ripple [mV] | 50 | |
| Switch-on peak current (nominal voltage 24 V DC) [A] | 2 | |
| Inrush current limitation | yes | |
| Efficiency (nominal voltage 24 V DC) [%] | 90.5 | |
| External input protection | ≤ B-10 A / ≤ C-8 A | |
| Derating [W/K] | 3 (60...70 °C) | |
| Mains buffering time (nominal voltage 24 V DC) [ms] | 6 | |
| Input current (nominal voltage 24 V DC) [A] | 5.5 | |
| Power loss (nominal voltage 24 V DC) [W] | 12.7 | |
| Integrated data decoupling | yes | |
| Back feeding protection [V] | 35 |
| Short-circuit proof | yes |
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| Overload protection | yes |
| Overload performance | constant output current |
| Parallel connection of outputs possible | no |
| Series connection of outputs possible | no |
| Ambient temperature [°C] | -25...70 | |
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| Note on ambient temperature |
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| Storage temperature [°C] | -40...85 | |
| Max. relative air humidity [%] | 95; (IEC 60068-2-30) | |
| Protection | IP 20 | |
| Degree of soiling | 2; (IEC 62103: conductive soiling not permitted) |
| EMC |
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| Vibration resistance |
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| Shock resistance |
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| AS-i certificate | 98801 |
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| Weight [g] | 621 |
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| Type of mounting | rail; (TH35 (EN 60715)) |
| Dimensions [mm] | 124 x 40 x 120 |
| Material | steel sheet |
| Display |
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| Pack quantity | 1 pcs. |
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| Connection | screw terminals: |
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Block diagram
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Output curve
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Characteristic curve for degree of efficiency / power loss
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Characteristic curve for derating
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Characteristic curve for mains buffering time
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