The Moxa NDR series offers compact DIN-rail mounted power supplies designed for industrial environments. With slim dimensions and high power efficiency, these units are perfect for installations in space-constrained control cabinets. They feature a wide AC input range, robust overload and overvoltage protection, and are built to operate reliably in harsh temperature conditions from -20 to +70 °C.

Key Features:

• DIN-rail mounting for industrial cabinets
• Slim metal housing saves installation space
• Universal AC input (90–264 VAC)
• High efficiency (up to 90%)
• Constant current limiting for overload protection
• Rugged metal enclosure

Technical Specifications:

Output Ratings:

• NDR-120-24: 24 VDC, 5 A, 120 W
• NDR-120-48: 48 VDC, 2.5 A, 120 W
• NDR-240-48: 48 VDC, 5 A, 240 W

Voltage Adjustment Range:

• 24–28 VDC (NDR-120-24)
• 48–55 VDC (NDR-120-48 / NDR-240-48)

Ripple & Noise:

• 120 mVp-p (NDR-120-24)
• 150 mVp-p (NDR-120-48 / NDR-240-48)

Setup/Rise Time at Full Load:

• Up to 3,000 ms (model dependent)

Hold-Up Time:

• Up to 28 ms at 230 VAC

Input Parameters:

• Voltage: 90–264 VAC (47–63 Hz) or 127–370 VDC
• Current: up to 2.5 A @ 115 VAC
• Inrush Current: up to 35 A @ 230 VAC (cold start)

Protection Functions:

• Overload: 105–160%, constant current limiting with auto recovery
• Overvoltage:
• 29–33 V (NDR-120-24)
• 56–65 V (NDR-120-48 / NDR-240-48)

Mechanical:

• Housing: Metal
• Dimensions:
• NDR-120 models: 123.75 x 125.20 x 40 mm
• NDR-240-48: 127.81 x 123.75 x 63 mm
• Weight:
• 500 g (NDR-120)
• 900 g (NDR-240-48)

Environmental Conditions:

• Operating Temperature: -20 to 70 °C
• Storage Temperature: -40 to 85 °C
• Humidity: 20–95% (non-condensing)
• Max Full Load Temp:
• 45 °C (120 W models)
• 50 °C (240 W model)

Certifications:

• Safety: UL 508, EN/IEC 62368-1
• EMC: EN 55032/35, EN 61000-3-2/3, EN IEC 61204-3, EN IEC 61000-6-2
• Immunity: IEC 61000-4-2 to -4-11 (up to 4 kV surge, 8 kV ESD)

Reliability:

• MTBF (MIL-HDBK-217F):
• NDR-120 models: 453,334 hrs
• NDR-240-48: 230,206 hrs

Warranty:

• 3-year manufacturer warranty

Package Contents:

• 1x NDR Series power supply