Description
The part number 500PSM03A (often associated with the ordering code 1MRB150038R1 or 500PSM03) refers to a specialized power supply module manufactured by ABB.
Product Overview
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Manufacturer: ABB
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Model / Type Designation: 500PSM03A (500PSM03)
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ABB Ordering/Catalog Number: 1MRB150038R1
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Component Type: Power Supply Module (PSM) for Central Processing Units
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Platform: ABB Procontrol / REB500 Substation Automation and Protection System
Key Specifications & Features
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Input Voltage Range: Designed to accept a wide DC and AC input range (typically handling DC inputs from 36V up to 312VDC or wide-range AC inputs depending on the specific sub-rack configuration).
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Outputs: Delivers multi-rail stabilized DC output voltages required by central processor and control racks (commonly configured with rails such as +5V, +12V, -12V, and +3.3V).
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Power Rating: Provides a total output capacity of around 100W.
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Isolation & Protection: Built to rigorous industrial standards (including IEC 255 isolation requirements) with comprehensive protection against overvoltage, short circuits, and line transients.
Industrial Deployment
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Applications: Primarily utilized as the core power supply module for central control units and protection relays within electrical power transmission and distribution infrastructure—most notably found in the ABB REB500 Digital Busbar Protection System and high-voltage substation switchgear control schemes.
500PSM03A
Product Overview
500PSM03A is an industrial DIN-rail power supply module manufactured by ABB, designed to supply stable 24VDC power for AC500 PLC and related automation peripheral hardware. This unit converts wide-range alternating current into regulated DC power, delivering clean power to controllers, I/O modules, transmitters and field sensors. Built with high-efficiency conversion circuits and comprehensive protection mechanisms, it performs reliably under fluctuating grid conditions. It can be configured in parallel redundant mode to enhance power continuity for critical automation cabinets, widely adopted in factory automation, process control and machinery control systems.
500PSM03A
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 500PSM03A |
| Module Type | DIN Rail Power Supply Module |
| Manufacturer | ABB |
| Applicable System | AC500 PLC Automation Platform |
| Input Voltage | 85 ~ 264 VAC |
| Input Frequency | 45 ~ 65 Hz |
| Rated Output | 24 VDC, 4.2 A |
| Nominal Output Power | 100 W |
| Max Efficiency | Up to 90% |
| Ripple & Noise | ≤50 mV p-p |
| Mounting Standard | 35 mm DIN rail (EN 60715) |
| Operating Temperature | -25℃ ~ +70℃ |
| Ambient Humidity | 5%–95% non-condensing |
| Protection Class | IP20 (cabinet internal installation) |
| Built-in Protections | Overload, short-circuit, overvoltage, overtemperature protection |
| Status Indicator | Power LED, fault alarm LED |
| Spare Part Status | Original production discontinued; new surplus and refurbished modules available |
Key Features
- Wide universal AC input range, compatible with global industrial power grid environments
- High-efficiency power conversion lowers heat generation for long-duration cabinet operation
- Supports parallel redundant configuration to eliminate single-point power supply failure risks
- Complete multi-layer protection safeguards the power module and downstream control equipment
- Low output ripple ensures stable power supply for sensitive control and measuring circuits
- Compact slim housing saves cabinet installation space with standardized DIN rail mounting
- Visible front panel LED indicators enable quick status inspection and fault diagnosis
- Optimized EMC performance to resist electromagnetic interference in complex industrial sites
- Strict full part number verification required; different hardware variants cannot be directly interchanged
- Rugged mechanical structure with anti-vibration design suitable for continuous unattended operation
