Mean Well SDR Series - User Manual

Installation Manual
⚫ Type：SDR DIN rail power supply
（Series：SDR-75, SDR-120, SDR-240, SDR-480, SDR-480P, SDR-960）
SDR-75-12 INPUT: 100-240VAC 1.55A 50/60Hz OUTPUT: 12V 6.3A
SDR-75-24 INPUT: 100-240VAC 1.55A 50/60Hz OUTPUT: 24V 3.2A
SDR-75-48 INPUT: 100-240VAC 1.55A 50/60Hz OUTPUT: 48V 1.6A
SDR-120-12 INPUT: 100-240VAC 1.4A 50/60Hz OUTPUT: 12V 10A
SDR-120-24 INPUT: 100-240VAC 1.4A 50/60Hz OUTPUT: 24V 5A
SDR-120-48 INPUT: 100-240VAC 1.4A 50/60Hz OUTPUT: 48V 2.5A
SDR-240-24 INPUT: 100-240VAC 2.6A 50/60Hz OUTPUT: 24V 10A
SDR-240-48 INPUT: 100-240VAC 2.6A 50/60Hz OUTPUT: 48V 5A
SDR-480-24 INPUT: 100-240VAC 5A 50/60Hz OUTPUT: 24V 20A
SDR-480-48 INPUT: 100-240VAC 5A 50/60Hz OUTPUT: 48V 10A
SDR-480P-24 INPUT: 100-240VAC 5A 50/60Hz OUTPUT: 24V 20A
SDR-480P-48 INPUT: 100-240VAC 5A 50/60Hz OUTPUT: 48V 10A
SDR-960-24 INPUT: 200-240VAC 6A 50/60Hz OUTPUT: 24V 40A
SDR-960-48 INPUT: 200-240VAC 6A 50/60Hz OUTPUT: 48V 20A
⚫ Introduction
SDR is a DIN rail power supply series with a 150% peak load capability (3 seconds) and high efficiency of up to 94%.
Like other Mean Well’s DIN series, they can be mounted on a TS35 Standard DIN rail.
⚫ Installation
（1）Always allow good ventilation clearances, 5mm left and right, 40mm above and 20mm below, around the unit
in use to prevent it from overheating.
（2）The appropriate mounting orientation for the unit is vertical, the input terminals at the bottom and output on
the top. Mounting orientations other than that, such as upside down, horizontal, or table-top mounting, is not
allowed.

Summary

Product Introduction and Installation

Introduction

Details the SDR DIN rail power supply series, its peak load capability, high efficiency, and mounting on TS35 DIN rail.

Installation Guidelines

Provides instructions on ventilation clearances and appropriate mounting orientation for the unit.

Wiring, Torque, and Mounting Specifications

Wire and Terminal Specifications

Covers copper wire usage, recommended wire gauges, temperature ratings, strapping length, and screwdriver type.

Recommended Torque Settings

Lists specific torque settings for input (I/P) and output (O/P) terminals for various SDR models.

Fuse and Circuit Breaker Recommendations

Suggests fuses and the maximum number of SDR PSUs connectable to a 230V circuit breaker.

Mounting Instruction

Details the step-by-step procedure for mounting the unit onto an admissible DIN rail.

System Integration and Safety Precautions

EMI Filter for SDR-960

Explains the use of a ferrite core clamp filter for SDR-960 to meet EN61204-3 Radiation class B.

General Warnings and Cautions

Lists critical safety warnings including electrical shock, burn hazard, fire risk, and environmental conditions.

Manufacturer and Compliance Information

Manufacturer and Branch Offices

Provides contact details for the manufacturer and its branch offices in China, USA, and Europe.

China RoHS Conformity

Declares conformity to China RoHS administrative measures for hazardous substances restriction.

China VOC Conformity

Announces conformity to China's Standardization Administration Releases VOC Standards.

Five PBT TSCA Conformity

Confirms product compliance with Use and Risk Management for Five PBT Chemicals under TSCA section 6(h).

Mean Well SDR Series Specifications

General

Efficiency	Up to 94%
Protection	Short circuit, Overload, Over voltage, Over temperature
Cooling	Free air convection
DC Adjustment Range	±10%
Withstand Voltage	I/P-O/P: 3kVAC, I/P-FG: 2kVAC, O/P-FG: 0.5kVAC
EMC Standards	EN55032 Class B, EN61000-3-2, 3, EN61000-4-2, 3, 4, 5, 6, 8, 11
Input Voltage Range	90 ~ 264VAC, 127 ~ 370VDC
Output Voltage	12V, 24V, 48V
Operating Temperature	-30 ~ +70°C
Mounting	DIN rail
AC Inrush Current (max.)	60A (at 230VAC)
Safety Standards	UL508, TUV EN62368-1, EAC TP TC 004 approved
Overload Protection	105-150% rated output power
Over Voltage Protection	115 ~ 135% rated output voltage
Output Power	120W, 240W
MTBF	382.3K hrs min. MIL-HDBK-217F (25°C)