Technical Specifications Input Power Range: 100‑240V AC / 125‑250V DC Output Power Rating: 35W Output Rail: Isolated +5V logic power, +24V I/O excitation power Module Slot: Single‑slot for UR series chassis Cooling Mode: Natural convection cooling Communication Interface: Back‑plane internal system bus Operating Temperature: ‑40℃ ~ +70℃ Storage Temperature: ‑50℃ ~ +85℃ Relative Humidity: 5%‑95%, non‑condensing Certifications: UL, CE, IEC61010 industrial control compliance
Functional Features Wide‑range AC/DC universal input power adaptation for substation field power condition. Multiple groups of isolated regulated DC power output for CPU and I/O modules power supply. Built‑in input over‑voltage, over‑current and short‑circuit protection mechanism. Real‑time power‑supply health status monitoring and fault reporting via back‑plane bus. Support hot‑swap replacement under system running status. Front‑panel LED indicator for power‑supply working status display. 
Application Scenarios Power supply for GE Multilin UR series protection relay chassis. Substation automation protection and control system power supply unit. Industrial power system protection device internal power supply expansion.
Structural Characteristics Standard single‑slot plug‑in metal housing for UR series chassis. Front‑panel LED status indicator lamp for power‑supply health observation. Rear‑side golden‑finger back‑plane connector for power output and status signal transmission.
Working Principle Field wide‑range AC or DC power input passes input filter circuit to suppress surge and interference noise. Switching power conversion circuit converts input voltage into isolated stable +5V and +24V DC output, distributes power to each functional module through chassis back‑plane bus.
Installation Requirements Insert module into designated power‑supply slot of UR series standard chassis. Ensure chassis protective earth connection strictly follows substation grounding specification. Confirm input power voltage is within rated input range before power‑on operation. Hot‑swap replacement can be executed under system running status, comply with site safety operation procedure. Keep ambient temperature and humidity inside cabinet within defined range, avoid condensation. Reserve natural convection heat‑dissipation space around module slot.
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