Mean Well EDR-150-24 | DIN Rail Power Supply

Description

Mean Well EDR-150-24 | DIN Rail Power Supply

Product Introduction

A 24V control cabinet does not care how impressive a power supply looks—it cares whether the voltage stays where the PLC, relays, sensors, and communications hardware expect it. The Mean Well EDR-150-24 is a single-output DIN rail supply built around that requirement, delivering 24VDC at up to 6.5A with a rated output of 156W at 230VAC.

The unit accepts a wide 90–264VAC input range and can also operate from 127–370VDC, making it suitable for a broad range of industrial control panels. Output adjustment is available from 24 to 28VDC, while typical efficiency is approximately 87%. Its 40 × 125.2 × 113.5 mm housing is designed for DIN rail installation and natural-air cooling—so cabinet airflow still matters (especially when the supply is operated near its upper load range).

EDR-150-24

Key Technical Specifications

The manufacturer’s specification also lists short-circuit, overload, over-voltage, and over-temperature protection.

Application Scenarios & Pain Points

High-Density Control Cabinets

With EDR-150-24: A compact DIN rail supply can provide the 24VDC control bus needed by PLC accessories, industrial relays, sensors, transmitters, and other cabinet loads.

Without adequate capacity: A nominally “24V” supply can still become the weak point when startup current, inductive loads, and cabinet temperature push the power budget beyond what the supply can comfortably deliver.

The EDR-150-24 provides up to 156W at 230VAC, giving engineers a straightforward 24VDC/6.5A power budget to work against.

Legacy PLC Panel Replacement

When an older DIN rail supply begins showing unstable output, replacing it with a physically compact industrial supply can avoid unnecessary cabinet rewiring. The EDR-150-24 supports standard DIN rail installation and has a 40 mm width, which is useful when cabinet rail space is already crowded.

Wide Input-Voltage Installations

90–264VAC input gives the enough range for common 115VAC and 230VAC industrial panel supplies. It also supports 127–370VDC input under the specified connection arrangement.

Heat-Loaded Enclosures

The published operating range is -20°C to +60°C, but that does not mean full rated power is available indefinitely at every temperature. The manufacturer specifies derating, and cabinet ventilation should be considered before sizing the supply for a continuously loaded installation.

QA & Live Testing SOP

For an industrial power supply, “powers on” is not enough.

A sensible receiving inspection for the should include:

1. Identity verification
   • Confirm manufacturer marking and complete model designation.
   • Check label condition, terminals, mounting clip, enclosure, and adjustment hardware.
2. Visual inspection
   • Look for cracked housing, damaged terminal blocks, bent DIN mounting hardware, contamination, or evidence of overheating.
3. Controlled power-up
   • Apply the correct AC input through a protected test setup.
   • Measure output voltage with a calibrated meter before connecting sensitive automation equipment.
4. Output verification
   • Verify nominal output near 24VDC.
   • Check the adjustment range where appropriate.
   • Measure output ripple under a suitable load rather than relying solely on an unloaded voltage reading.
5. Load test
   • Apply a controlled load and monitor output stability, temperature rise, and current behavior.
   • Confirm that the supply responds appropriately to overload conditions.
6. Packaging
   • Protect terminal areas and DIN mounting hardware against impact.
   • Use anti-static/electronics-safe packaging where appropriate.

The official specification identifies ±1.0% voltage tolerance, ±0.5% line regulation, ±1.0% load regulation, and 150mVp-p maximum ripple/noise.

Field Engineer’s Pitfall Guide

❗ Do Not Size It by Voltage Alone

“24VDC” tells you almost nothing about whether the supply is appropriate. Add the actual PLC, I/O, relay coils, sensors, HMI, communication equipment, and startup loads before deciding whether 6.5A is sufficient.

❗ Watch the 115VAC vs. 230VAC Rating

The published ratings are 156W / 6.5A at 230VAC but 125W / 5.2A at 115VAC. Do not advertise or design around 156W without considering the actual input condition.

❗ Leave Thermal Headroom

The specified ambient range extends to +60°C with derating. A cabinet sitting at elevated temperature is not equivalent to a laboratory bench at 25°C. Keep the manufacturer’s recommended ventilation clearances around the unit—40 mm above, 20 mm below, and 5 mm on each side are specified for permanent full-load operation.

Intent-Driven FAQ

Is the Mean Well a 24VDC power supply?

Yes. It is a single-output industrial DIN rail power supply with a nominal 24VDC output and adjustable output range of 24–28VDC.

How many amps does the provide?

At 230VAC input, the rated output current is 6.5A. At 115VAC, the published rating is 5.2A.

Is the really 156W?

Yes, under the specified 230VAC condition. The datasheet lists 156W at 230VAC and 125W at 115VAC. This distinction matters when calculating cabinet power capacity.

Can the mount on DIN rail?

Yes. It is designed for DIN rail installation, including TS-35/7.5 and TS-35/15 rails.

What input voltage does the accept?

The specified AC input range is 90–264VAC at 47–63Hz. The unit can also accept 127–370VDC under the specified DC-input connection method.

Does the have overload protection?

Yes. The specification includes overload protection, along with short-circuit, over-voltage, and over-temperature protection. The exact overload behavior depends on input condition and is specified in the manufacturer’s documentation.

Is the Mean Well suitable for PLC control cabinets?

Yes. It is specifically positioned as an industrial DIN rail power supply and is suitable for industrial control applications when the load, temperature, input voltage, and required output capacity are correctly evaluated.

Bottom line: The is a practical 24VDC / 6.5A DIN rail power supply for industrial control panels, with wide-range input and adjustable output. The engineering decision comes down to actual load current, input voltage, cabinet temperature, and required derating—not simply whether the label says “24V.”