Technical Specifications Input voltage 100‑240 V AC. Rated output 24 V DC, output power 72 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Module surface IP20. Complies with industrial power supply safety standards.
Functional Features Delivers stable DC power for rack internal modules. Built‑in over‑voltage, over‑current and short‑circuit protection. Front‑panel LED reflects power‑on and fault state. Supports redundant parallel operation. Supports hot‑swap replacement.
Application Scenarios Used in ABB DCS control cabinet for process industries including chemical, energy and water treatment. Applied for new project construction and on‑site spare‑part replacement.
Performance Parameters Output voltage keeps high stability. Protection circuit acts quickly under fault conditions. Hot‑swap operation does not interrupt normal operation of other rack modules. Fault signal can be fed back to system diagnosis.
Material Composition Multi‑layer glass‑fiber epoxy printed circuit board. Switch‑mode power components, filter and isolation devices. Reinforced metal housing. Screw‑type power terminals. Copper‑alloy back‑plane plug‑in contacts.
Structural Characteristics Rack‑mount plug‑in module structure. Front panel arranges LED status indicators. Rear side connects rack back‑plane bus. Module width 25 mm, height 130 mm, depth 125 mm.
Working Principle External AC power goes through filtering, rectification and high‑frequency switching conversion. Stable 24 V DC output is sent to rack back‑plane bus for power supply of each functional unit. When abnormal condition occurs, internal protection circuit starts to avoid damage to rear‑stage equipment.
Installation Requirements Insert module into designated rack slot and lock fastening screw. Wire AC input power strictly according to rated parameters. Guarantee cabinet protective grounding. Verify LED status after power‑on. Set relevant parameters for redundant parallel configuration.
Usage Notes Implement anti‑static measures during handling. Disconnect input power before full disassembly. Do not exceed rated output power. Periodically inspect terminal tightening condition. Avoid dust and corrosive gas environment.
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