LRS-450-24 Mean Well Switching Power Supply LRS-450-24 - Reliable 450W

Our review of the LRS-450-24 finds it best suited for technicians and integrators who need a compact, highpower internal supply that runs reliably in industrial environments. The single biggest reason to buy is straightforward: it delivers up to 450W of stable DC output from a low 35mm profile while supporting wide input selection and fullload operation across a broad temperature range. For anyone building equipment racks or retrofitting enclosures where space and thermal tolerance matter, this unit offers an efficient, rugged option.

Key Features

• 450W single output: Provides ample continuous power for dense internal systems and industrial controllers without needing multiple supplies.
• Low profile 35mm design: Saves enclosure space and makes the unit easier to mount in compact racks or shallow chassis.
• Selectable 115VAC/230VAC input: Allows deployment worldwide with a simple switch, avoiding extra converter hardware when moving locations.
• High efficiency up to 92%: Reduces waste heat and lowers operating costs, which helps when multiple supplies run together in confined spaces.
• Wide operating temperature -20C to 70C: Enables reliable operation in hot industrial environments when full load is required.
• Built-in long life fan and protections: The integrated fan and full protection functions help maintain stable output and extend service life under load.

Who It's For

The LRS-450-24 is ideal for system builders, automation technicians, and hobbyists assembling highpower internal systems that need a compact enclosure-friendly supply. Its combination of 450W output and a low 35mm height is particularly useful for LED drivers, CNC controllers, or multiple 12V/24V device arrays where space is limited.

Those who need external, weatherproof, or low-noise passive supplies should look elsewhere; this is an enclosed internal power supply with a built-in fan and is intended for indoor or protected industrial use rather than outdoor direct exposure.

Pros & Cons

Pros

• High continuous power density in a slim 35mm profile makes installation flexible.
• Selectable mains input and high efficiency reduce integration work and operating losses.
• Wide -20C to 70C operating range and anti-vibration capability suit industrial applications.

Cons

• Integrated fan means audible operation and requires ventilation, so it is not silent.

Specifications

Manufacturer	MEAN WELL
Model	LRS-450-24
Output Power	451.2W overall consumption
Output Voltage	24V single output (series available in 5V-48V)
Input	Selectable 115VAC or 230VAC
Operating Temperature	-20C to 70C
Net Weight	0.85Kg

Our Verdict

The LRS-450-24 is a practical, high value internal switching power supply for industrial and workshop use. It pairs high efficiency and a compact 35mm form with wide temperature tolerance and builtin protection, making it a smart choice for installers who need dependable 450W performance in tight spaces.

Frequently Asked Questions

Can this unit run at full load in hot environments?
Yes; the LRS-450-24 is rated to operate at full load between -20C and 70C with its long life fan assisting cooling.

Does the supply support both 115VAC and 230VAC mains?
Yes; input selection is provided via a switch so the same unit can be set for 115VAC or 230VAC.

Is it suitable for outdoor installation?
No; this is an enclosed internal power supply designed for protected indoor or industrial cabinet installation, not direct outdoor exposure.