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3N3745W

3N3745W – ABB Robotics Power Supply Module
Type: DC Power Supply Unit
Function: Provides regulated power for robot control systems

Key Features:

Input: 400-480V AC (3-phase)

Output: 24V DC (20A continuous)

Redundant operation support

Diagnostic LEDs for status monitoring

Applications:

ABB IRC5 controller cabinets

Industrial robot power systems

Certifications: CE, UL, IEC 61800-5-1

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3N3745W – Technical Specifications
General Information
Manufacturer: ABB Robotics

Model: 3N3745W

Type: Industrial Power Supply Unit

Application: Primary power conversion for robot control systems

Electrical Parameters
Input Voltage: 400-480V AC (3-phase, 50/60Hz)

Output Voltage: 24V DC (±1% regulation)

Current Rating:

Continuous: 20A

Peak (5s): 30A

Efficiency: ≥94% (typical)

Ripple Noise: <1% (p-p)

Protection & Monitoring
Protections:

Overcurrent (115% limit)

Overvoltage (28V cutoff)

Overtemperature (85°C shutdown)

Status Indicators:

LED for power/error/fault

Mechanical & Environmental
Dimensions: 150 × 100 × 50 mm (W×H×D)

Mounting: DIN Rail (35mm)

Cooling: Convection + forced air

Operating Temperature: -25°C to +70°C

Humidity: 5-95% RH (non-condensing)

Protection Class: IP20

Compatibility
Systems:

ABB IRC5 controller cabinets

Compatible with 3HAC-series drives

Certifications
Standards:

IEC 61800-5-1

CE, UL, cULus

RoHS compliant

Key Advantages:
✔ High efficiency with active PFC
✔ Redundant parallel operation capability
✔ Wide temperature range for harsh environments