Mean Well WDR Series - User Manual

Installation Manual
 Type：WDR DIN rail power supply（Families：WDR-60, WDR-120, WDR-240, WDR-480）
WDR-60-5 INPUT: 200 - 480VAC 0.7A 50/60Hz OUTPUT: 5V 10A
WDR-60-12 INPUT: 200 - 480VAC 0.7A 50/60Hz OUTPUT: 12V 5A
WDR-60-24 INPUT: 200 - 480VAC 0.7A 50/60Hz OUTPUT: 24V 2.5A
WDR-60-48 INPUT: 200 - 480VAC 0.7A 50/60Hz OUTPUT: 48V 1.25A
WDR-120-12 INPUT: 200 - 500VAC 1.2A 50/60Hz OUTPUT: 12V 10A
WDR-120-24 INPUT: 200 - 500VAC 1.2A 50/60Hz OUTPUT: 24V 5A
WDR-120-48 INPUT: 200 - 500VAC 1.2A 50/60Hz OUTPUT: 48V 2.5A
WDR-240-24 INPUT: 200 - 500VAC 2.0A 50/60Hz OUTPUT: 24V 10A
WDR-240-48 INPUT: 200 - 500VAC 2.0A 50/60Hz OUTPUT: 48V 5A
WDR-480-24 INPUT: 200 - 500VAC 4.0A 50/60Hz OUTPUT: 24V 20A
WDR-480-48 INPUT: 200 - 500VAC 4.0A 50/60Hz OUTPUT: 48V 10A
 Introduction
WDR series is a sort of DIN rail power supplies with high PFC capability and a wide input range, 180-550Vac. And
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 on the bottom, around
the unit in use to prevent it from overheating. Also a 10-15 cm clearance must be kept when the adjacent
device is a heat source.
（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.
（3）Use copper wire only, and recommended wires are shown as below.
AWG
18
16
14
12
10
Rated Current of
Equipment (Amp)
6A
6-10A
13-16A
16-25A
25-32A
Cross-section of
Lead(mm
2
)
0.75
1.00
1.5
2.5
4
Note: Current each wire carries should be de-rated to 80% of the current suggested
above when using 5 or more wires connected to the unit.
Make sure that all strands of each stranded wire enter the terminal connection and the screw terminals are
securely fixed to prevent poor contact. If the power supply possesses multi-output terminals, please make
sure each contact is connected to wires to prevent too much current stress on a single contact.
（4）Use wires that can withstand temperatures of at least 80°C, such as UL1007.
（5）Recommended wire strapping length is 7mm (0.275”).
（6）Recommended screwdriver is 3mm, slotted type.
（7）The recommended torque setting for terminals is shown as below.

Summary

Introduction to WDR DIN Rail Power Supply

Installation Guidelines for WDR Power Supplies

Ventilation Clearances

Maintain 5mm side, 40mm top, and 20mm bottom clearances to prevent overheating.

Mounting Orientation

Mount vertically with input terminals down and output terminals up. Other orientations are disallowed.

Wire Selection and Usage

Use copper wire only, with specific AWG and cross-section recommendations based on current.

Wire Temperature Rating

Use wires rated for at least 80°C, such as UL1007.

Wire Strapping Length

Recommended wire strapping length is 7mm (0.275").

Recommended Screwdriver

Use a 3mm slotted type screwdriver for terminal connections.

Torque Setting

Details recommended torque settings for terminals, referring to a table not shown here.

Fuse and Circuit Breaker Capacity

Suggested fuse types and maximum unit counts per circuit breaker at 400V are provided.

3-Phase Connection and Protection

Unit can connect to 2 phases of a 3-phase Wye system; AC/L2 input requires protection.

Mounting Instructions

Step-by-step guide for fastening the unit onto a TS35 DIN rail.

Warning and Cautionary Notes

Electrical Shock and Energy Hazard

All failures must be examined by a qualified technician. Do not remove the power supply case.

Electric Arcs and Shock Hazard

Connecting primary and secondary sides together is not allowed.

Burn Hazard

Do not touch the unit during operation or shortly after disconnection.

Fire and Short Circuit Risks

Protect openings from foreign objects and dripping liquids.

Operating Temperature Limits

Maximum operating temperature is 50°C; avoid high ambient temperatures or fire sources.

Surge Protective Device Compatibility

Specific compatibility note for WDR-480 with certain surge protective devices.

Moisture and Water Proximity

Do not place units in areas with high moisture or near water.

Ambient Temperature and Fire Source Proximity

Avoid locations with high ambient temperature or near fire sources.

Protective Earth Connection

The FG terminal must be connected to PE (Protective Earth).

Output Rating Limits

Output current and wattage must not exceed specified rated values.

System Disconnection Procedure

Disconnect system from supply voltage before any installation or maintenance.

Fuse Replacement

For continued protection against fire, replace fuses with the same type and rating.

Declaration of China RoHS Conformity

Declaration of China VOC Conformity

Declaration of Five PBT TSCA Conformity

Mean Well WDR Series Specifications

General

Output Voltage	12V, 24V, 48V
Operating Temperature	-30°C to +70°C
Efficiency	Up to 94%
Protection	Over voltage, Over current, Short circuit, Over temperature
Cooling	Free air convection
Mounting	DIN Rail TS-35 / 7.5 or 15
DC Adjustment Range	±10%
EMC Standards	EN 55032, EN 61000-3-2, EN 61000-4