B&R 0PS1200.3
Minimum space requirement in the control cabinet due to a thin design Robust and reliable thanks to dynamic boost with a strong output characteristic curve for starting heavy loads Optical and preventive function monitoring with three-color LED and dry switching contact Easy handling due to push-in connections, label fields, wire stripping mark and tamper-resistant setup Can be connected in parallel for increased power and redundancy Temperature range: -25°C to +70°C Worldwide use thanks to AC and DC wide-range input International certification package 24 VDC power supply unit, 1-phase, 20 A, input 100 to 240 VAC, wide range, thin design, top-hat rail installation
Lifecycle & replacement
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
General information
| Insulation voltages / Input - Output | 3 kV DC (type test) 3.1 kV DC (routine test) |
| Insulation voltages / Input - Ground | 1.5 kV DC (type test) 3.1 kV DC (routine test) |
| Insulation voltages / Input - Signal | 3 kV DC (type test) 3.1 kV DC (routine test) |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | Not applicable |
| Certifications / UL | cULus E534663 Industrial control equipment |
| Certifications / DNV | Temperature: D (-25 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: A |
| Status display | Green LED (DC OK), threshold value Uout > 21 V |
| Active DC OK switch output | See section "Dry switching contact". |
| Connection type | Push-in connection |
Input
| Nominal input voltage | 100 to 240 VAC |
| Input voltage | 100 to 240 VAC -15% to +10% 100 to 240 VDC ±10% 115 to 240 VAC ±10% (UL) 160 to 240 VDC ±10% (UL) |
| Network type | Star network (TN, TT, IT(PE)) |
| Frequency | 50 to 60 Hz ±10% |
| Inrush current | <21 A |
| Current consumption | 5.3 A / 2.15 A (100 VAC / 240 VAC) 4.4 A / 2.3 A (120 VAC / 230 VAC) 5.2 A / 2.1 A (100 VDC / 240 VDC) |
| I²t | <1.091 A²s |
| Power failure bypass | Typ. 23 ms (120 VAC) Typ. 24 ms (230 VAC) |
| Leakage current to PE | <3.5 mA |
| Protective circuit | Varistor transient protection |
| Internal fuse | 10 A |
| Required line fuse for device and line protection | See section "Input protection". |
Output
| Nominal voltage | 24 VDC |
| Output power | 480 W / Max. 720 W (5 s) |
| Output voltage | 24 to 28 VDC |
| Output current | 20 A / Max. 30 A (5 s) |
| Setting range for output voltage | 24 to 28 VDC |
| Control deviation | <0.1% (input voltage change ±10%) <3% (load change, dynamic) <1% (load change, static) |
| Rise time | ≤1 s (UOUT (10 to 90%)) |
| Residual ripple | Typ. 50 mVSS |
| Can be connected in parallel | Yes, for increased efficiency and redundancy |
| Can be connected in series | Yes, for increased output voltage (observe SELV limit) |
| Overvoltage protection | ≤35 VDC (on the output (OVP)) |
| Protective functions | Short-circuit protection |
| Feedback voltage resistance | ≤35 VDC |
Efficiency, reliability
| Power dissipation / Rated load | <33.37 W (120 VAC) <26.72 W (230 VAC) |
| Power dissipation / No-load operation | <1.3 W (120 VAC) <1.37 W (230 VAC) |
| Efficiency | Typ. 93.49% (120 VAC) Typ. 94.42% (230 VAC) |
| MTBF | 230 VAC / >1,400,000 h (25°C) 230 VAC / >770,000 h (40°C) 230 VAC / >310,000 h (60°C) |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | No |
| Installation elevation above sea level / Maximum | 5000 m |
| Flammability class | V0 |
| Ventilation/Cooling | Normal convection, no fan required |
| Degree of protection per EN 60529 | IP20 |
| Protection class | I |
Ambient conditions
| Temperature / Operation | -25 to 70°C |
| Temperature / Derating | See section "Derating". |
| Temperature / Starting temperature | -40°C |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | Max. 95%, non-condensing |
| Vibration / Operation | 10 to 50 Hz, amplitude ±0.2 mm 50 to 150 Hz, 2.3 g, 90 min, per IEC 60068-2-6 |
| Shock / Operation | 18 ms, 30 g, in each direction, per IEC 60068-2-27 |
| Pollution degree | 2 |
| Climate category | 3K3, per EN 60721 |
| Overvoltage category | III (≤2000 m) / II (≤5000 m), per EN 61010-1 III (≤2000 m) / II (≤5000 m), per EN 61010-2-201 |
Mechanical properties
| Housing / Material | Aluminum sheet, plastic cover PA |
| Housing / Coating | No protective coating |
| Dimensions / Width | 55 mm |
| Dimensions / Height | 135 mm |
| Dimensions / Depth | 132 mm |
| Installation | Easy top-hat rail installation (NS 35 rails, EN 60715) |
| Weight | 940 g |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
3D CAD models
ECAD / EPLAN
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.