MEAN WELL NDR-480 Series 480W Single Output Industrial DIN RAIL Power Supply

Product Overview

The MEAN WELL NDR-480 series is an economical and slim 480W single output industrial DIN rail power supply. Designed for easy installation on TS-35/7.5 or TS-35/15 mounting rails, its 85.5mm width saves valuable space within cabinets. This series features a universal AC input range (90VAC to 264VAC) and complies with harmonic current regulations (BS EN/EN61000-3-2). The robust metal housing enhances power dissipation, enabling high working efficiency of up to 92.5% and operation in ambient temperatures from -20°C to 70°C with free air convection. It includes constant current mode for overload protection, making it suitable for inductive or capacitive loads. Certified for industrial control apparatus (UL508, TUV BS EN/EN62368-1, etc.), the NDR-480 series offers a competitive and reliable power solution for industrial applications.

Key Features

• Universal AC input / Full range
• Built-in active PFC function
• Protections: Short circuit / Overload / Over voltage / Over temperature
• Cooling by free air convection
• Can be installed on DIN rail TS-35/7.5 or 15
• UL 508 (industrial control equipment) approved
• BS EN/EN61000-6-2 (BS EN/EN50082-2) industrial immunity level
• 100% full load burn-in test
• 3 years warranty

Applications

• Industrial control system
• Factory automation
• Electro-mechanical apparatus

GTIN Code

MW Search: https://www.meanwell.com/serviceGTIN.aspx

Model Encoding

The model encoding follows a structure indicating series, output wattage, and output voltage.

Example: NDR-480-24

• Series name: NDR-480
• Output voltage: 24V
• Output wattage: 480W

Technical Specifications

Notes:

• 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature.
• 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1 µF & 47 µF parallel capacitor.
• 3. Tolerance: includes set up tolerance, line regulation and load regulation.
• 4. Installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.
• 5. Derating may be needed under low input voltage. Please check the derating curve for more details.
• 6. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with the EMC directives. For guidance on how to perform these EMC tests, please refer to "EMI testing of component power supplies." (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
• 7. The ambient temperature derating of 3.5°C/1000m with fanless models and of 5°C/1000m with fan models for operating altitude higher than 2000m(6500ft).

Product Liability Disclaimer: For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

Block Diagram

The block diagram illustrates the internal components and signal flow of the NDR-480 series power supply. It includes:

• Input stage: EMI Filter & Rectifiers, UVP (Under Voltage Protection), FG (Frame Ground).
• PFC Circuit and PFC Control.
• Power Switching and PWM Control.
• Output stage: Rectifiers & Filter, O.C.P. (Over Current Protection), Detection Circuit, O.V.P. (Over Voltage Protection).
• Output terminals: +V and -V.

Key frequencies: PFC fosc: 85KHz, PWM fosc: 65KHz.

Derating Curves

Ambient Temperature Derating Curve: This curve shows the maximum load percentage versus ambient temperature. The power supply can operate at 100% load up to approximately 45°C, after which the load capacity derates linearly to 0% at 70°C (vertical axis represents load percentage, horizontal axis represents ambient temperature in °C).

Output Derating vs. Input Voltage: This curve illustrates the load percentage versus input voltage. The NDR-480 series maintains 100% load capability across its wide input voltage range, from 90VAC to 264VAC (at 60Hz).

Mechanical Specifications

Dimensions (W*H*D): 85.5mm * 125.2mm * 128.5mm (tolerance ± 1mm).

Views:

• Top View: 85.5mm width.
• Side View: 128.5mm length, 36mm height detail shown.
• Front View: Shows terminal blocks TB1 and TB2, DC OK indicator, and +V ADJ potentiometer.
• Bottom View: Shows mounting points.
• Back View: Shows DIN rail mounting mechanism.

Terminal Pin Assignments:

TB1 (Input/Output Control):

TB2 (Output):

DIN Rail Compatibility: This series fits DIN rail TS35/7.5 or TS35/15. (For reference only. Not included with unit.)

Installation and Manuals

Installation Instruction: For installation details, please refer to the Instruction manual.

Installation Manual: Please refer to: http://www.meanwell.com/manual.html

Safety and Compliance

Safety Standards:

• UL 508 (industrial control equipment) approved
• TUV BS EN/EN62368-1, EAC TP TC 004, BSMI CNS15598-1, IS13252 (Part1)/IEC60950-1 (except for 48V) approved; (meet BS EN/EN60204-1)
• Type tested Safety, Regular monitoring (Bauart geprüft Sicherheit, Regelmäßige Überwachung)

Safety & Withstand Voltage:

• I/P-O/P: 3KVAC
• I/P-FG: 2KVAC
• O/P-FG: 0.5KVAC

Isolation Resistance:

• I/P-O/P, I/P-FG, O/P-FG: >100M Ohms / 500VDC / 25°C / 70% RH

EMC:

• EMISSION: Compliance to BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS15936 Class B
• IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61000-6-2 (BS EN/EN50082-2), BS EN/EN61204-3, heavy industry level, EAC TP TC 020

Other Specifications

MTBF:

• 1041.6K hrs min. Telcordia SR-332 (Bellcore)
• 146.8K hrs min. MIL-HDBK-217F (25°C)

Packing:

• 1.5Kg; 8pcs/13Kg/0.9CUFT