
SKU
MPN
STEP3-PS/1AC/12DC/2.5/PT
Weight
0.177 kg
Series STEP3-PS
STEP3-PS/1AC/12DC/2.5/PT - Power supply unit
Primary-switched power supply unit, STEP POWER, Push-in connection, DIN rail or direct mounting, input: 1-phase, output: 12 V DC / 2.5 A
- Energy savings with the highest level of efficiency in no-load and part-load operation (Efficiency Level VI)
- Space savings in the control cabinet due to the narrow design combined with increased performance (up to 100%)
- Approval for household purposes (EN 60335) allows use in domestic applications
- Quick and easy startup with tool-free Push-in connection technology at a 45° angle with double terminal points
- Flexible mounting: Snap onto a DIN rail or screw onto a level surface
Documents
Technical Specifications
AC operation
Supply system configuration | Star network (TN, TT, IT (PE)) |
Input voltage range | 100 V AC ... 240 V AC -15 % ... +10 % |
Typical national grid voltage | 120 V AC |
Typical national grid voltage | 230 V AC |
Voltage type of supply voltage | AC/DC |
Inrush Current | typ. 35 A (25 °C) |
Inrush current integral (I2t) | typ. 0.38 A2s |
Frequency range (fN) | 50 Hz ... 60 Hz ±10 % |
Mains buffering time | typ. 20 ms (120 V AC) |
Mains buffering time | typ. 90 ms (230 V AC) |
Current consumption | 0.59 A (100 V AC) |
Current consumption | 0.32 A (240 V AC) |
Protective circuit | Transient surge protection; Varistor |
Switch-on time | typ. 2 s |
Device mains fuse | 1.25 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 | 110 V DC ... 250 V DC -20 % ... +10 % |
Current consumption | 0.31 A (110 V DC) |
Current consumption | 0.13 A (250 V DC) |
Output data
Efficiency | > 87 % (120 V AC) |
Efficiency | > 88 % (230 V AC) |
Efficiency Level | VI |
Nominal Output Voltage | 12 V DC |
Nominal output current (IN) | 2.5 A |
Short-circuit-proof | yes |
No-load proof | yes |
Derating | > 50 °C ... 70 °C (2 % / K) |
Crest factor | typ. 3.5 |
Crest factor | typ. 4.3 |
Output power (PN) | 30 W |
Connection in parallel | yes, for increasing power and redundancy with diode |
Connection in series | no |
Feedback voltage resistance | ≤ 25 V DC |
Protection against overvoltage at the output (OVP) | < 25 V DC |
Residual ripple | typ. 100 mVPP |
Control deviation | < 1 % (Static load change 10 % ... 90 %) |
Control deviation | < 4 % (Dynamic load change 10 % ... 90 %, (10 Hz)) |
Control deviation | < 0.1 % (change in input voltage ±10 %) |
Rise time | typ. 100 ms (UOut = 10 % ... 90 %) |
Minimum no-load power dissipation | < 0.1 W (120 V AC) |
Maximum no-load power dissipation | < 0.1 W (230 V AC) |
Minimum nominal load power dissipation | < 4.3 W (120 V AC) |
Power loss nominal load max. | < 3.9 W (230 V AC) |
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 |
rigid | 1 mm² (recommended) |
flexible | 0.2 mm² ... 2.5 mm² |
flexible | 1 mm² (recommended) |
flexible with ferrule without plastic sleeve | 0.5 mm² ... 1.5 mm² |
flexible with ferrule without plastic sleeve | 1 mm² (recommended) |
flexible with ferrule with plastic sleeve | 0.2 mm² ... 1 mm² |
flexible with ferrule with plastic sleeve | 1 mm² (recommended) |
AWG | 17 |
AWG | 24 ... 14 (Cu) |
Stripping length | 10 mm (rigid/flexible) |
Stripping length | 10 mm (Ferrule) |
Output
Position | 2.x |
Connection technology
Position marking | 2.1, 2.2 (+), 2.3, 2.4 (-) |
Conductor connection
Connection Method | Push-in connection |
rigid | 0.2 mm² ... 2.5 mm² |
rigid | 1 mm² (recommended) |
flexible | 0.2 mm² ... 2.5 mm² |
flexible | 1 mm² (recommended) |
flexible with ferrule without plastic sleeve | 0.5 mm² ... 1.5 mm² |
flexible with ferrule without plastic sleeve | 1 mm² (recommended) |
flexible with ferrule with plastic sleeve | 0.2 mm² ... 1 mm² |
flexible with ferrule with plastic sleeve | 1 mm² (recommended) |
AWG | 17 |
AWG | 24 ... 14 (Cu) |
Stripping length | 10 mm |
LED signaling
Types of signaling | LED |
Signal threshold | > 0.9 x UN (UN = 12 V DC) (LED lights up green) |
Signal threshold | < 0.9 x UN (UN = 12 V DC) (LED off) |
Electrical properties
Number of phases | 1.00 |
Insulation voltage input/output | 4 kV AC (type test) |
Insulation voltage input/output | 3.75 kV AC (routine test) |
Product properties
Product family | STEP POWER |
MTBF (IEC 61709, SN 29500) | > 2061000 h (25 °C) |
MTBF (IEC 61709, SN 29500) | > 1066000 h (40 °C) |
MTBF (IEC 61709, SN 29500) | > 668000 h (50 °C) |
Environmental protection directive | RoHS Directive 2011/65/EU |
Environmental protection directive | WEEE |
Environmental protection directive | Reach |
Insulation characteristics
Protection class | II (in closed control cabinet) |
Degree of pollution | 2 |
Item dimensions
Width | 36 mm |
Height | 90 mm |
Depth | 61 mm |
Depth | 55 mm (Device depth (DIN rail mounting)) |
Horizontal pitch | 2 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 note | alignable: 0 mm horizontally, 30 mm vertically |
Mounting Position | horizontal DIN rail NS 35, EN 60715 |
With protective coating | no |
Material specifications
Flammability rating according to UL 94 | V0 (Housing, terminal blocks, base latches) |
Housing Material | Plastic |
Housing Material | PC |
Foot latch material | Polyamid |
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 | ≤ 4000 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) |
Vibration (Operation) | 15 Hz ... 150 Hz, 2.3g, 90 min. |
Temp code | T4 (-10 ... +70 °C; > 50 °C, Derating: 2 %/K) |
Overvoltage category
EN 61010-1 | II (≤ 4000 m) |
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) |
Standards/specifications | 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 |
Electric vehicle conductive charging system - Part 21-2: EMC requirements for off board electric vehicle charging systems
Standard designation | Electric vehicle conductive charging system - Part 21-2: EMC requirements for off board electric vehicle charging systems |
Standards/specifications | IEC 61851-21-2 |
Note | Class B |
UL
Identification | UL 1310 Class 2 Power Units |
Identification | UL/C-UL Listed UL 61010-1 |
Identification | UL/C-UL Listed UL 61010-2-201 |
Identification | UL/C-UL Listed ANSI/UL 121201 Class I, Division 2, Groups A, B, C, D (Hazardous Location) |
EMC data
Electromagnetic compatibility | Conformance with EMC Directive 2014/30/EU |
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 |
Conducted noise emission | EN 55016 |
Conducted noise emission | EN 61000-6-3 (Class B) |
Noise emission | EN 55016 |
Noise emission | EN 61000-6-3 (Class B) |
Harmonic currents
Standards/regulations | EN 61000-3-2 |
Standards/regulations | 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 |
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 |
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 |
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 1 kV (Test Level 3) |
Input | asymmetrical 2 kV (Test Level 3) |
Output | symmetrical 0.5 kV (Test Level 2) |
Output | asymmetrical 1 kV (Test Level 2) |
Comments | Criterion B |
Conducted interference
Standards/regulations | EN 61000-4-6 |
Input/Output | asymmetrical |
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 A |
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. |
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Pack Size | 1 |
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