Murrelektronik Emparro Power Supply - 24V 20A 480W
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Tameson UKMurr Emparro Universal Power Supply 24V 20A | 85442
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RS Components Ltd- UKMurrelektronik Limited EMPARRO Switched Mode DIN Rail Power Supply, 230V ac, 24V dc dc Output, 20A Output, 480W
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Blueperry agriculture (UK)Murr Elektronik Power Supply, 230Vac/24Vdc 20A 85442
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£771.77
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Product Information
Full details
This guide is for industrial automation professionals and engineers requiring a reliable, high-efficiency 24V DC power supply. The Murrelektronik 85442 Emparro offers a key benefit of consistent, stable power with advanced features like Power Boost for demanding startups, though its DIN rail mounting requires a compatible enclosure. It's a robust switched-mode power supply unit designed for demanding applications, featuring a wide operating temperature range, high MTBF, and integrated overload protection.
All features
| Model Part Number | 85442 |
|---|---|
| Brand | Murrelektronik Limited |
Extended Product Information
FAQs
What is the maximum continuous output current?
The maximum continuous output current is 20 Amps.
Can the output voltage be adjusted?
Yes, the output voltage is adjustable between 24V and 28V DC.
What is the function of the 'Power Boost' feature?
The Power Boost feature allows the power supply to deliver up to 150% of its nominal current for a short period, which is ideal for starting high-inductive loads like motors.
What is the operating temperature range of this power supply?
The unit operates reliably within a wide temperature range of -25°C to +60°C without derating.
How is the unit protected against overloads?
It features an integrated power limiter that limits the output current to 100% of the nominal current (or 150% in Power Boost mode), protecting both the power supply and the connected equipment.
What type of input voltage does it accept?
It accepts a wide input range of 90 to 265V AC or 90 to 250V DC.
What is the expected lifespan (MTBF) of the unit?
The Mean Time Between Failures (MTBF) is greater than 500,000 hours.
Troubleshooting
Unit does not power on (no output voltage)
Verify input voltage is within the specified range (90-265V AC / 90-250V DC). Check all input and output wiring connections for security and correct polarity. Ensure the circuit breaker or fuse for the input power is active.
Output voltage is lower than expected
Check if the connected load exceeds the maximum current rating (20A) or the Power Boost limit. Reduce the connected load or ensure the Power Boost is not continuously engaged. Verify the output voltage adjustment is set correctly.
Unit shuts down under load
This may indicate an overload condition. Check the total current draw of the connected devices. If the load exceeds 20A, consider reducing the load or using a higher-rated power supply. The power limiter may be activated; allow the unit to cool if it has overheated.
Intermittent operation or flickering output
Inspect input power connections for instability or voltage fluctuations. Ensure the ambient temperature is within the operating range (-25°C to +60°C). Check for excessive vibration that could loosen connections.
Pros and Cons
Pros
- High efficiency reduces energy consumption and heat.
- Power Boost feature simplifies startup of heavy loads.
- Integrated overload protection enhances system reliability.
- Wide temperature range ensures stable operation in harsh environments.
- Durable metal housing provides excellent EMC performance.
Cons
- Requires a DIN rail mounting system.
- Output voltage is fixed at 24V DC (adjustable within 24-28V range), may not suit all applications.
- Dimensions might require specific enclosure space.
Setup, Compatibility & Care
Setup:
- Ensure the power supply is disconnected from any power source.
- Mount the unit securely onto a standard 35mm DIN rail using the integrated mounting clip.
- Connect the input power terminals (90-265V AC / 90-250V DC) according to local electrical codes and safety standards.
- Connect the output terminals (24-28V DC, 20A) to your load.
- Verify all connections are secure before applying input power.
Compatibility:
- Input Voltage: Accepts a wide range of AC (90-265V) and DC (90-250V) input, making it versatile globally.
- Output Voltage: Provides a regulated 24V DC output, adjustable to 28V DC, suitable for most industrial control equipment.
- Mounting: Designed for standard 35mm DIN rail mounting.
Care:
- Cleaning: Disconnect power before cleaning. Use a dry or slightly damp cloth to wipe down the exterior. Avoid using solvents or abrasive cleaners.
- Ventilation: Ensure adequate ventilation around the unit. Do not obstruct air vents. The unit requires free air circulation for optimal cooling.
- Inspection: Periodically check for dust buildup on vents and connections. Clean as necessary to maintain performance.