| Order Code (Model) |
EH-PSA |
| Product Family |
EH-150 Modular PLC Architecture Series |
| Module Classification |
Main System Base Rack Power Supply Unit |
| Input Voltage Line Supply |
100V ~ 240V AC Universal Utility Grid (50/60 Hz) |
| Output Capability Base |
High-Capacity Stabilized Internal DC Bus Feeds |
| Mounting Slots Allocation |
Dedicated Left-Side Main Slot on Backplane Baseboard |
| Circuit Safety Insulation |
Galvanic Optocoupler Isolation & Fuse Barrier Arrays |
| Cooling Infrastructure Layout |
Natural Air Ventilation slots (Fanless High-MTBF Frame) |
Performance Overview
The Hitachi EH-PSA is an industrial-tier premium standard AC system power supply module meticulously engineered within the flagship EH-150 modular programmable logic controller backbone infrastructure. Purpose-built to act as the primary energetic core for dense multi-slot system arrays, this high-performance component draws utility alternating current from global 100V-240V grids smoothly. The advanced power conversion framework regulates incoming raw electricity into filtered, low-ripple low-noise working DC voltage, feeding the main system backplane bus directly with absolute stability. Complete with specialized left-hand slot locking clips, robust continuous full-load tracking limits, and advanced thermal defense matrices, it safeguards the operation of downstream CPUs, communication links, and expansion I/O configurations with complete system consistency.
📋 Critical Application Check
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Industry: Primary Manufacturing Control System Enclosures, Automotive Assembly Line Baseplates, Heavy Steel Mill CPU Panels, Processing Plant Telemetry Servers, High-Voltage Power Infrastructure Switchgear cabinets.
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High-Isolation Power Filtering: Onboard galvanic optocoupler barriers isolate volatile external AC grid ripples thoroughly from low-voltage logical tracks, protecting complex data logs and program codes.
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High MTBF Fanless Architecture: Specialized natural heat dissipation housing voids optimize thermal profiles permanently without relying on physical mechanical fan blades, avoiding typical soot buildup breakdown points.
Hitachi PLC Systems Integration:
