Mean Well HDR-100-24 24V 3.83A 92W DIN Rail Power Supply
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A. Product Overview
The Mean Well HDR-100-24 24V 3.83A 92W DIN Rail SMPS is part of the HDR-100 series of ultra slim DIN rail power supplies. It converts standard AC mains power into regulated 24V DC power for automation and electrical control equipment.
The HDR-100-24 delivers:
Output Voltage: 24V DC
Rated Current: 3.83A
Rated Power: 92W
Input Voltage: 85 to 264V AC or 120 to 370V DC
Typical Efficiency: 90 percent
Voltage Adjustment Range: 24 to 25.5V for the standard LPS version
Ripple and Noise: Maximum 150mVp-p
Dimensions: 70 × 90 × 54.5 mm
Mounting: TS-35/7.5 or TS-35/15 DIN rail
Operating Temperature: -30°C to 70°C
Cooling: Free air convection
The power supply features an ultra slim 70 mm housing to reduce cabinet space requirements. It also provides an LED power indicator and built-in protection against short circuit, overload and over voltage.
B. Working Principle
The Mean Well HDR-100-24 works as a switching mode power supply.
First, incoming AC power passes through an EMI filter, which reduces unwanted electrical interference. The input is then rectified and filtered to create a DC supply for the internal switching circuit.
A high frequency power switching stage controlled by a PWM control circuit regulates energy transfer through the internal transformer. On the output side, the voltage is rectified and filtered again to produce a stable 24V DC supply.
The internal detection circuit continuously monitors the output. If the voltage or load moves outside the permitted operating range, protection circuits such as overload protection and over voltage protection respond automatically. The block diagram on page 3 of the datasheet shows the sequence from EMI filtering, rectification and power switching through to output detection and regulation.
C. Why Mean Well HDR-100-24 Is Used
The HDR-100-24 is used when industrial or electrical equipment requires a reliable and regulated 24V DC power source from an AC mains supply.
Its compact DIN rail form factor makes it suitable for installation inside electrical control panels where mounting space is limited. The wide input voltage range allows it to operate with different mains conditions, while the regulated 24V output can power many common automation devices.
The HDR-100 series is specifically listed for applications including household control systems, building automation, industrial control systems, factory automation and electro-mechanical equipment.
Its constant current overload protection and automatic recovery after certain fault conditions can also help protect the power supply and connected equipment during abnormal operating conditions.
D. Suitable Buyers
The Mean Well HDR-100-24 is suitable for:
- Industrial automation system integrators
- Electrical control panel manufacturers
- PLC panel builders
- Machine manufacturers and OEMs
- Factory automation companies
- Building automation contractors
- Electrical and electronics maintenance teams
- Industrial equipment manufacturers
- Control system engineers
- Automation distributors and electrical suppliers
It is particularly relevant where 24V DC is required for controllers, sensors, relays, interface devices and other low voltage control equipment.
Frequently Asked Questions
1. What is the output of the Mean Well HDR-100-24?
The HDR-100-24 provides 24V DC output with a rated current of 3.83A and rated power of 92W.
2. What input voltage does HDR-100-24 support?
It supports 85 to 264V AC input and can also accept 120 to 370V DC. The datasheet also specifies operation up to 277V AC and 390V DC under operational conditions.
3. Is the Mean Well HDR-100-24 a DIN rail power supply?
Yes. It is designed for TS-35/7.5 or TS-35/15 DIN rail mounting, making it suitable for electrical and industrial control panels.
4. What is the maximum power of HDR-100-24?
The standard HDR-100-24 model is rated at 92W with a 24V DC output and 3.83A rated current.
5. Is the output voltage adjustable?
Yes. The standard HDR-100-24 output voltage can be adjusted approximately from 24V to 25.5V.
6. What protection features are available in HDR-100-24?
The power supply includes short circuit protection, overload protection and over voltage protection.
7. What is the efficiency of Mean Well HDR-100-24?
The HDR-100-24 has a typical efficiency of approximately 90 percent.
8. What is the operating temperature range?
The HDR-100 series can operate from approximately -30°C to 70°C, subject to the derating conditions shown in the datasheet.
9. Does the HDR-100-24 require a cooling fan?
No. The HDR-100 series uses free air convection cooling, so an internal cooling fan is not required.
10. What are the dimensions of Mean Well HDR-100-24?
The unit measures approximately 70 × 90 × 54.5 mm, making it suitable for compact DIN rail installations.
11. Where is the Mean Well HDR-100-24 commonly used?
It is designed for applications such as building automation, industrial control systems, factory automation, household control systems and electro-mechanical equipment.
12. Does the HDR-100-24 have a power indicator?
Yes. The HDR-100 series includes an LED indicator for power-on status.
13. What is the warranty for the Mean Well HDR-100 series?
The datasheet specifies a 3-year warranty for the HDR-100 series.
14. Is Mean Well HDR-100-24 suitable for industrial automation panels?
Yes. Its 24V DC output, DIN rail mounting, compact dimensions, wide AC input range and protection functions make it suitable for many industrial automation and electrical control panel applications.