Description

1MRS050639 ABB Power Supply Printed‑Circuit‑Board Assembly

Technical Specifications

• Product Model: 1MRS050639
• Brand: ABB
• Warranty: One Year
• Input Voltage: Single‑phase 230 V AC mains input
• Operating Temperature: 0 °C ~ +60 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Power‑supply stabilisation <200 ms
• Protection Class: IP00 internal plug‑in circuit‑board assembly (inside protected equipment enclosure)
• Accuracy Class: Industrial switch‑mode power‑supply grade
• Output Frequency: Not applicable
• Rated Current: Max 8.7 A AC input draw
• Output Rails: Multiple regulated DC output rails for CPU, I/O, cooling‑fan and brake‑circuit power feeds
• Status Signals: ACOK, DCOK, BAT‑N power‑status monitoring signal outputs; SMBus system‑management‑bus communication interface
• Function: Internal power‑supply PCB assembly for ABB protection‑relay and control‑equipment chassis; converts mains AC to multiple stable DC supply voltages for internal system boards
• Diagnostics: On‑board power‑ok status monitoring circuits
• Certifications: CE component‑level compliance
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 0.78 kg
• Dimensions: 220 × 130 mm plug‑in PCB assembly
• 

Product Overview

1MRS050639 is an original ABB internal power‑supply printed‑circuit‑board assembly used inside selected ABB protection‑relay and control‑system chassis units. It converts single‑phase 230 V AC mains input into multiple isolated and regulated DC output rails to power CPU logic boards, I/O circuits, cooling‑fan and brake‑related hardware. On‑board status‑signal outputs feed power‑health information to host‑system supervision logic via SMBus communication bus. It is a critical internal spare component for repairing legacy ABB substation‑automation and protection‑relay equipment. Available as refurbished and surplus tested PCB assemblies for switch‑gear‑equipment repair‑workshops.

Application Notes

‑ This is an internal plug‑in PCB component; must be installed inside original host‑equipment enclosure only. ‑ Disconnect all high‑voltage mains supply before board removal or replacement. ‑ Strict ESD anti‑static handling required for this populated circuit‑board assembly. ‑ Typical deployment: ABB substation‑protection‑equipment internal power‑board spare‑part stocking.