Description
ABB LWN2660-6EG / 3BHL000986P7002
Technical Specifications
Manufacturer: Bel Power Solutions
ABB reference: 3BHL000986P7002
Type: AC-DC / DC-DC converter
Mounting: 35 mm DIN rail
Input AC voltage: 86 to 264 V AC
Input DC voltage: 90 to 350 V DC
Input current: approximately 3.5 A AC, 3.3 A DC
Output voltage 1: 24.7 V DC
Output voltage 2: 24.7 V DC
Output current 1: 5 A
Output current 2: 5 A
Output power: approximately 247 W
Outputs: 2 isolated outputs
Efficiency: up to 89 percent
Cooling: convection
Protection class: IP20
Operating temperature: -40 to 60 °C
EMC compliance: EN IEC 61204-3, EN 50121-3-2
Emissions compliance: EN 55011 / EN 55032
Harmonics compliance: IEC/EN 61000-3-2
Safety listing: UL 508
PCB protection: conformal coating
Dimensions: approximately 106 × 103 × 138 mm
Functional Features
Dual isolated 24.7 V DC outputs
Universal AC and wide-range DC input
Power factor correction
Low inrush current
Convection cooling without fan
DIN rail mounting
Overload and short-circuit protection
No-load stable operation
Improved EMC performance option
Conformal coated PCB for harsh environments
Suitable for industrial automation power distribution
Application Scenarios
ABB control cabinet auxiliary power supply
PLC system 24 V DC power distribution
Industrial control panel power conversion
Instrumentation and sensor power supply
Electromagnetic actuator and valve power supply
Fan and DC load supply
Building automation and factory automation systems
Railway and transportation auxiliary power applications where EN 50121 compliance is relevant
Performance Parameters
Total output power: approximately 247 W
Output voltage regulation: dual 24.7 V DC
Maximum output current per channel: 5 A
Input voltage range: 86 to 264 V AC or 90 to 350 V DC
Efficiency: up to 89 percent
Isolation: galvanically isolated outputs
Protection: overload, short circuit, and no-load stability
EMC performance: improved EMC option available
Ambient operating range: -40 to 60 °C
Material Composition
Metal and polymer DIN rail housing
Power conversion PCB
Transformer and isolation stage
Input rectifier and PFC stage
Output filtering components
Screw terminal blocks
DIN rail mounting clip
Conformal coating on electronic assemblies
LED status indicators
Thermal management structure for convection cooling
Structural Features
DIN rail snap-fit housing
Front or side terminal access
Dual independent output channels
IP20 enclosed construction
Convection-cooled design without internal fan
Compact industrial footprint
Label plate with electrical ratings
Mounting dimensions compatible with standard control panels
Working Principle
The converter accepts AC or DC input voltage and converts it into two regulated isolated 24.7 V DC outputs. Power factor correction reduces input harmonic current and improves grid compatibility. The isolated output stages supply independent 24 V DC loads while preventing ground loops and fault propagation between circuits. Protection circuits monitor output current and temperature, and the conformal coated PCB improves reliability in humid or contaminated environments.
Installation Requirements
Mount on a 35 mm DIN rail in a ventilated control cabinet
Ensure ambient temperature remains within -40 to 60 °C
Provide adequate clearance for convection cooling
Connect input power according to AC or DC wiring requirements
Connect output loads to the correct output terminals
Do not exceed 5 A per output channel
Ensure cabinet grounding meets local electrical codes
Verify input voltage range before energizing
Use appropriate cable sizes for load current
Confirm compatibility with the ABB system when used under the 3BHL000986P7002 reference
Usage Precautions
Do not exceed the rated output current
Do not block ventilation surfaces
Avoid installation near high-heat components
Verify isolated output configuration before parallel connection
Do not operate with damaged terminals or housing
Check input voltage compatibility for AC and DC applications
Follow UL 508 and local electrical installation rules
Use only manufacturer-approved replacements
Refer to the Bel Power Solutions datasheet and ABB documentation for final wiring and approval data
