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STEP3-PS/1AC/48DC/2.5/PT 1285035 PHOENIX CONTACT Primary switching power supplies, STEP POWER, Push-in conne..
STEP3-PS/1AC/48DC/2.5/PT
1285035
PHOENIX CONTACT
1 Pcs.
Primary switching power supplies, STEP POWER, Push-in connection, Rail and direct mounting, input: 1 phase, output: 48 V DC / 2.5 A, adjustable from 48 V DC ... 56 V DC, PoE application up to 120 W
Primary Switching Power Supplies, STEPPOWER, Push-in Connection, Rail & Direct Mount, Input:1-Phase, Output: 48 VDC / 2.5 A
Primary-switched power supply unit, STEP POWER, Push-in connection, DIN rail or direct mounting, input: 1-phase, output: 48 V DC / 2.5 A, adjustable from 48 V DC ... 56 V DC, PoE application up to 120 W
Automation > DC-power supply
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Phoenix Contact STEP3-PS/1AC/48DC/2.5/PT primary switching power supplies are engineered to provide reliable DC power for industrial control panels and automation equipment. Power supply units of this type convert standard AC or DC mains voltages into regulated DC outputs to support sensitive downstream electronics, sensors, and actuators in modern manufacturing environments.
Pricing, availability and lead time are confirmed per enquiry through an RFQ.
- AC operation Supply system configuration: Star network (TN, TT, IT (PE))
- Input voltage range: 120 V AC ... 240 V AC 10 % (120 W)
- Typical national grid voltage: 120 V AC
- Voltage type of supply voltage: AC
- Inrush current: typ. 35 A
- Inrush current integral (I 2 t): typ. 0.03 A 2 s
- Frequency range (f N ): 50 Hz ... 60 Hz ±10 %
- Mains buffering time: typ. 19 ms (120 V AC)
- Current consumption: 1.11 A (120 V AC)
- Protective circuit: Transient surge protection; Varistor
- Switch-on time: typ. 2 s
- Device mains fuse: 4 A internal (device protection), slow-blow
- Recommended breaker for input protection: 6 A ... 16 A (Characteristics B, C, D, K)
- Discharge current to PE: < 0.25 mA
- DC operation Input voltage range: 125 V DC ... 250 V DC 10 % (120 W)
- Voltage type of supply voltage: DC
More info
▲Technical data
Input data
| AC operation | |
| Supply system configuration | Star network (TN, TT, IT (PE)) |
| Input voltage range | 120 V AC ... 240 V AC 10 % (120 W) |
| 95 V AC ... 120 V AC 10 % (96 W) | |
| Typical national grid voltage | 120 V AC |
| 230 V AC | |
| Voltage type of supply voltage | AC |
| Inrush current | typ. 35 A |
| Inrush current integral (I2t) | typ. 0.03 A2s |
| Frequency range (fN) | 50 Hz ... 60 Hz ±10 % |
| Mains buffering time | typ. 19 ms (120 V AC) |
| typ. 20 ms (230 V AC) | |
| Current consumption | 1.11 A (120 V AC) |
| 0.56 A (240 V AC) | |
| Protective circuit | Transient surge protection; Varistor |
| Switch-on time | typ. 2 s |
| Device mains fuse | 4 A internal (device protection), slow-blow |
| Recommended breaker for input protection | 6 A ... 16 A (Characteristics B, C, D, K) |
| Discharge current to PE | < 0.25 mA |
| DC operation | |
| Input voltage range | 125 V DC ... 250 V DC 10 % (120 W) |
| 99 V DC ... 125 V DC 10 % (96 W) | |
| Voltage type of supply voltage | DC |
| Current consumption | 1.05 A (125 V DC) |
| 0.51 A (250 V DC) | |
Output data
| Efficiency | > 94 % (120 V AC) |
| > 95.5 % (230 V AC) | |
| Nominal output voltage | 48 V DC |
| Setting range of the output voltage (USet) | 48 V DC ... 56 V DC (> 48 V DC, constant capacity restricted) |
| Nominal output current (IN) | 2.5 A (120 W) |
| 2 A (96 W) | |
| Short-circuit-proof | yes |
| No-load proof | yes |
| Derating | > 50 °C ... 70 °C (2 % / K) |
| Crest factor | typ. 1,64 (120 V AC) |
| typ. 1.69 (230 V AC) | |
| Output power (PN) | 120 W |
| 96 W | |
| Connection in parallel | yes, for increasing power and redundancy with diode |
| Connection in series | yes, for increased output voltage |
| Feedback voltage resistance | ≤ 60 V DC |
| Protection against overvoltage at the output (OVP) | < 60 V DC |
| Residual ripple | typ. 100 mVPP |
| Control deviation | < 0.5 % (Static load change 10 % ... 90 %) |
| < 3 % (Dynamic load change 10 % ... 90 %, (10 Hz)) | |
| < 0.1 % (change in input voltage ±10 %) | |
| Rise time | typ. 100 ms (UOut= 10 % ... 90 %) |
| Minimum no-load power dissipation | < 0.21 W (120 V AC) |
| Maximum no-load power dissipation | < 0.21 W (230 V AC) |
| Minimum nominal load power dissipation | < 7.7 W (120 V AC) |
| Power loss nominal load max. | < 5.7 W (230 V AC) |
Connection data
| Input | |
| Position | 1.x |
| Connection technology | |
| Position marking | 1.1, 1.2 (L), 1.3, 1.4 (N) |
| Conductor connection | |
| Connection method | Push-in connection |
| rigid | 0.2 mm² ... 2.5 mm² |
| 1 mm² (recommended) | |
| flexible | 0.2 mm² ... 2.5 mm² |
| 1 mm² (recommended) | |
| flexible with ferrule without plastic sleeve | 0.5 mm² ... 1.5 mm² |
| 1 mm² (recommended) | |
| flexible with ferrule with plastic sleeve | 0.2 mm² ... 1 mm² |
| 1 mm² (recommended) | |
| rigid (AWG) | 24 ... 14 (Cu) |
| 17 (recommended) | |
| Stripping length | 10 mm (rigid/flexible/ferrule without plastic sleeve) |
| 10 mm (Ferrule with plastic sleeve) | |
| Output | |
| Position | 2.x |
| Connection technology | |
| Position marking | 2.1, 2.2, 2.3, 2.4 (+), 2.5, 2.6, 2.7, 2.8 (-) |
| Conductor connection | |
| Connection method | Push-in connection |
| rigid | 0.2 mm² ... 2.5 mm² |
| 1 mm² (recommended) | |
| flexible | 0.2 mm² ... 2.5 mm² |
| 1 mm² (recommended) | |
| flexible with ferrule without plastic sleeve | 0.5 mm² ... 1.5 mm² |
| 1 mm² (recommended) | |
| flexible with ferrule with plastic sleeve | 0.2 mm² ... 1 mm² |
| 1 mm² (recommended) | |
| rigid (AWG) | 24 ... 14 (Cu) |
| 17 (recommended) | |
| Stripping length | 10 mm (rigid/flexible) |
| 10 mm (Ferrule) | |
Signaling
| LED signaling | |
| Types of signaling | LED DC OK – signal state operation (UN= 24 V DC, IOut= IN) |
| Function | Visual operating state display |
| Color | green |
| LED off | Supply voltage input AC not present (Off) |
| LED on (green), DC OK | UOut>44 V DC (on) |
Electrical properties
| Number of phases | 1.00 |
Product properties
| Product type | Power supply |
| Product family | STEP POWER |
| MTBF (IEC 61709, SN 29500) | > 1372000 h (25 °C) |
| > 758000 h (40 °C) | |
| > 495000 h (50 °C) | |
| Environmental protection directive | RoHS Directive 2011/65/EU |
| WEEE | |
| Reach | |
| Insulation characteristics | |
| Protection class | II (in closed control cabinet) |
| Degree of pollution | 2 |
Dimensions
| Item dimensions | |
| Width | 72 mm |
| Height | 90 mm |
| Depth | 61 mm |
| 55 mm (Device depth (DIN rail mounting)) | |
| Dimensional drawing | |
| Horizontal pitch | 4 Div. (DIN 43880) |
| Installation dimensions | |
| Installation distance right/left | 0 mm / 0 mm |
| Installation distance top/bottom | 30 mm / 30 mm |
Mounting
| Mounting type | DIN rail or direct mounting |
| Assembly instructions | alignable: 0 mm horizontally, 30 mm vertically |
| Mounting position | horizontal DIN rail NS 35, EN 60715 |
| With protective coating | No |
Material specifications
| Housing material | Plastic |
| Foot latch material | Polyamid |
| Housing material | Polycarbonate |
Environmental and real-life conditions
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -10 °C ... 70 °C (Derating: > 50 °C; 2 %/K) |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Ambient temperature (start-up type tested) | -25 °C |
| Maximum altitude | ≤ 5000 m (> 2000 m, Derating: 10 %/1000 m) |
| Max. permissible relative humidity (operation) | ≤ 95 % (at 25 °C, non-condensing) |
| Shock (operation) | 18 ms, 30g, per spatial direction (IEC 60068-2-27) |
| Vibration (operation) | < 15 Hz, amplitude ±2.5 mm (IEC 60068-2-6) |
| 15 Hz ... 150 Hz, 2.3g, 90 min. | |
Standards and regulations
| Overvoltage category | |
| EN 61010-1 | II (≤ 5000 m) |
| Overvoltage category | |
| EN 62477-1 | III (≤ 2000 m) |
| Electrical safety | |
| Standard designation | Electrical safety |
| Standards/specifications | IEC 61010-1 (SELV) |
| Protective extra-low voltage | |
| Standard designation | Protective extra-low voltage |
| Standards/specifications | IEC 61010-1 (SELV) |
| IEC 61010-2-201 (PELV) | |
| Safe isolation | |
| Standard designation | Safe isolation |
| Standards/specifications | IEC 61558-2-16 |
| Low-voltage power supplies, DC output | |
| Standard designation | Low-voltage power supplies, DC output |
| Standards/specifications | EN 61204-3 |
| Safety requirements for electrical equipment for measurement, control, and laboratory use | |
| Standard designation | Safety requirements for electrical equipment for measurement, control, and laboratory use |
| Standards/specifications | IEC 61010-1 |
| Household and similar electrical appliances - Safety | |
| Standard designation | Safety of electrical devices for household use and similar purposes |
| Standards/specifications | DIN EN 60335-1 |
| Standard designation | Power over Ethernet |
| Standards/specifications | IEEE 802.3 (145.4.1 insulation) |
Approvals
| UL | |
| Identification | UL/C-UL Listed UL 61010-1 |
| UL | |
| Identification | UL/C-UL Listed UL 61010-2-201 |
| UL | |
| Identification | UL/C-UL Listed ANSI/UL 121201 Class I, Division 2, Groups A, B, C, D (Hazardous Location) |
EMC data
| Low Voltage Directive | Conformance with Low Voltage Directive 2014/35/EC |
| Interference emission | Interference emission in accordance with EN 61000-6-3 (residential and commercial) and EN 61000-6-4 (industrial) |
| Noise immunity | EN 61000-6-2:2005 |
| Electromagnetic compatibility | Conformance with EMC Directive 2014/30/EU |
| Conducted noise emission | EN 55016 |
| EN 61000-6-3 (Class B) | |
| Noise emission | EN 55016 |
| EN 61000-6-3 (Class B) | |
| Harmonic currents | |
| Standards/regulations | EN 61000-3-2 |
| EN 61000-3-2 (Class A) | |
| Flicker | |
| Standards/regulations | EN 61000-3-3 |
| Frequency range | 0 kHz ... 2 kHz |
| Electrostatic discharge | |
| Standards/regulations | EN 61000-4-2 |
| Electrostatic discharge | |
| Contact discharge | 6 kV (Test Level 3) |
| Discharge in air | 8 kV (Test Level 3) |
| Comments | Criterion A |
| Electromagnetic HF field | |
| Standards/regulations | EN 61000-4-3 |
| Electromagnetic HF field | |
| Frequency range | 80 MHz ... 1 GHz |
| Test field strength | 10 V/m (Test Level 3) |
| Frequency range | 1 GHz ... 6 GHz |
| Test field strength | 10 V/m (Test Level 3) |
| Comments | Criterion A |
| Fast transients (burst) | |
| Standards/regulations | EN 61000-4-4 |
| Fast transients (burst) | |
| Input | asymmetrical 4 kV (Test Level 4) |
| Output | asymmetrical 2 kV (Test Level 3) |
| Comments | Criterion A |
| Surge voltage load (surge) | |
| Standards/regulations | EN 61000-4-5 |
| Input | symmetrical 2 kV (Test Level 4) |
| asymmetrical 4 kV (Test Level 4) | |
| Output | symmetrical 1 kV (Test Level 3) |
| asymmetrical 2 kV (Test Level 3) | |
| Comments | Criterion A |
| Conducted interference | |
| Standards/regulations | EN 61000-4-6 |
| Conducted interference | |
| Frequency range | 0.15 MHz ... 80 MHz |
| Comments | Criterion A |
| Voltage | 10 V (Test Level 3) |
| Voltage dips | |
| Standards/regulations | EN 61000-4-11 |
| Voltage | 230 V AC |
| Frequency | 50 Hz |
| Voltage dip | 70 % |
| Number of periods | 25 periods |
| Additional text | Class 3 |
| Comments | Criterion A |
| Voltage dip | 40 % |
| Number of periods | 10 periods |
| Additional text | Class 3 |
| Comments | Criterion B |
| Voltage dip | 0 % |
| Number of periods | 1 period |
| Additional text | Class 3 |
| Comments | Criterion A |
| Criteria | |
| Criterion A | Normal operating behavior within the specified limits. |
| Criterion B | Temporary impairment to operational behavior that is corrected by the device itself. |
| Criterion C | Temporary adverse effects on the operating behavior, which the device corrects automatically or which can be restored by actuating the operating elements. |