ABB LWN2660-6EG 3BHL000986P7002

Product Introduction:
The ABB LWN2660-6EG (internal ABB code 3BHL000986P7002, originally Bel Power Solutions / ABB Power-One LWN series) is a high-efficiency, enclosed switch-mode AC/DC power supply designed for 24 VDC industrial control system loads. It provides dual isolated 24.7 VDC outputs and is suitable for powering PLCs, I/O racks, sensors, and communication equipment in harsh industrial environments.
Category:
Description
Key Technical Specifications:
  • Manufacturer:​ ABB (Bel Power Solutions heritage — LWN series)
  • Order Code:​ 3BHL000986P7002
  • Input Voltage:​ 85–264 VAC (47–63 Hz) or 90–350 VDC (universal wide-range)
  • Output Voltage:​ 24.7 VDC dual independent outputs (adjustable 24–25.8 VDC per channel)
  • Output Current:​ 5 A per output (total 10 A)
  • Rated Power:​ 247 W
  • Efficiency:​ ≈87–88%
  • Power Factor Correction (PFC):​ Yes, active PFC
  • Isolation Voltage:​ Input–Output 2.8 kVDC; Input–Chassis 1.5 kVDC
  • Protection:​ Overload (constant current limit), short-circuit (auto-recovery), overvoltage, overtemperature
  • Operating Temp:​ –40 °C to +60 °C (full rated, no derating to 50 °C typically)
  • Storage Temp:​ –40 °C to +85 °C
  • Humidity:​ 5–95% RH, non-condensing
  • Mounting:​ 35 mm standard DIN rail
  • Connections:​ Spring-cage / push-in terminals (accept 26–14 AWG)
  • Indicators:​ Green POWER LED, Red FAULT LED, Yellow LOAD LED
  • Dimensions (L×W×H):​ ≈113.6 × 103 × 138 mm
  • Weight:​ ≈0.65–1.4 kg depending on version
  • Certifications:​ CE, UL/cUL, EN 62368-1, RoHS, EN 55032Class B EMI
Functional Features:
  • Dual independently isolated 24 VDC outputs for separated load zones
  • Active power factor correction minimizes line harmonics
  • Parallel operation possible with external OR-ing diodes for N+1 redundancy
  • Low ripple & noise (<50 mV typ.)
  • Conformal-coated PCB option on some revisions for humid/dusty environments
Application Scenarios:
  • Powering ABB / Siemens / Honeywell DCS I/O racks
  • General 24 VDC industrial automation cabinet power
  • Conveyor, packaging, and process skid power distribution
Material & Structure:
  • Ventilated metal/aluminum enclosure with integrated heat sink
  • Conformal-coated PCB (selected variants)
  • DIN-clip with release latch
Installation & Notes:
  • Provide adequate ventilation — allow 25 mm clearance above/below
  • Tighten terminal screws to specified torque (typically 0.5–0.6 N·m)
  • Use appropriately sized input fusing (recommended 6–10 A slow-blow on AC side)
  • For redundant configuration, use diode module on outputs to prevent back-feed
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