The ABB Bailey MPS III (Modular Power System III) is a high-capacity industrial DC power supply platform used in ABB Bailey INFI 90 and Net 90 distributed control systems (DCS). It is designed to deliver stable, multi-voltage power distribution to controllers, I/O modules, communication boards, and system backplanes in mission-critical automation environments.
As a third-generation evolution of ABB Bailey’s power architecture, MPS III significantly improves power density, system reliability, and cabinet space efficiency, making it a key backbone component in large-scale process automation systems such as power generation plants, oil refineries, and petrochemical facilities.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Modular Power System (MPS III) Power Supply |
| System | ABB Bailey INFI 90 / Net 90 / Symphony |
| Output Voltages | +5 V DC / +15 V DC / -15 V DC / 24 V DC / 48 V DC (model dependent) |
| Output Current | +5 V up to 60–100 A (variant dependent) |
| Power Capacity | High-density industrial DC power system |
| Input Voltage | 120/240 VAC or 125 VDC |
| Efficiency | High-efficiency industrial conversion design |
| Redundancy Support | N+1 / parallel load sharing capable |
| Protection | Overvoltage, overcurrent, thermal protection |
| Monitoring | System diagnostics via backplane interface |
| Module Type | Rack-mounted modular power unit |
| Expansion | Compatible with MPS III chassis system |
| Operating Temperature | -20°C to +70°C |
| Humidity | 5%–95% non-condensing |
Dimensions & Weight
| Item | Value |
|---|---|
| Size (L × W × H mm) | approx. 540 × 330 × 230 mm |
| Weight | approx. 8 – 15 kg (depending on configuration) |
Recommended Related Models
- ABB PHARPS32000000 – MPS III power supply module variant
- ABB PHARPS40000000 – high-capacity MPS III power unit
- ABB PHARPSCH100000 – MPS III power chassis
- ABB IPSYS01 – system power module (INFI 90 generation)
- ABB IPFLD series (24 / 48 / 125) – field power modules
Popular ABB Bailey Models
- MPS I / MPS II / MPS III power system generations
- INFI 90 distributed control system architecture
- Bailey Harmony automation systems
- ABB Symphony Plus modernization platforms
- Legacy Net 90 power and control infrastructure
