ABB O4LE 1KHL015545R0001 Power Supply Module

Technical Specifications Model: O4LE Part Number: 1KHL015545R0001 Input Voltage: AC wide range input Output: Stabilized DC output Mounting Mode: 35 mm DIN‑rail mounting Operating Temperature: 0 ℃ to +55 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE

Functional Features AC‑DC conversion provides stable DC auxiliary power for cabinet internal control components. Built‑in over‑voltage, over‑current and short‑circuit automatic protection function. Automatic recovery after protection trigger when fault condition disappears. Front‑panel LED indicator shows module power‑on running status. DIN‑rail modular structure for convenient cabinet installation and replacement.

Application Scenarios Spare‑part replacement for O4LE 1KHL015545R0001 power supply unit inside ABB control cabinet. Auxiliary power supply for industrial automation control system in chemical, water‑treatment and metallurgy industries. Hardware renewal of old ABB control cabinet.

Working Principle AC input power enters module through input terminal block. After rectification and filtering, the signal acts on switching transformer controlled by PWM chip. Circuit completes voltage transformation and secondary rectification filtering, outputs stable DC voltage to cabinet load. When over‑voltage, over‑current or short‑circuit fault occurs, hardware protection circuit cuts off output. Module automatically restores output after fault is eliminated. LED indicator lights up when module outputs normally.

Installation Requirements Clip O4LE onto standard 35 mm DIN‑rail inside control cabinet and keep horizontal installation. Connect AC power input and DC output load wiring to corresponding screw terminals, tighten terminal screws. Complete protective earthing according to cabinet grounding specification. Do not block housing ventilation openings, reserve sufficient heat‑dissipation clearance around module. Ambient operating temperature shall remain within 0 ℃ to +55 ℃ without condensation. Verify DC output voltage value under load condition after power‑on.