Weidmuller PRO PM 100W 24V 4.5A Power Supply

Technical Overview

100W, 24V DC, 4.5A switch-mode power supply with 90-264V AC input, IP20, and -20 to 70°C operation.

Key Features

Compact, flat design for space-saving mounting.
High efficiency of approximately 86%.
Overload protection (120-180% Inominal) with automatic recovery.
Short-circuit protection for operational safety.
Output overvoltage protection to safeguard connected loads.
Parallel connection option with a diode module.
Wide operating temperature range from -20 °C to +70 °C.
Input voltage range of 90-264 V AC.
IP20 ingress protection.
Status indication via LED.
Screw connection system for input and output.

Technical Specification Matrix

Parameter	Value
Output Power	100 W
Rated Output Voltage	24 V DC
Rated Output Current	4.5 A
AC Input Voltage Range	90…264 V AC
Rated Input Voltage	100…240 V AC
Frequency Range AC	47…63 Hz
Efficiency	86%
IP Rating	IP20
Operating Temperature	-20 °C…70 °C
Storage Temperature	-40 °C…85 °C
Humidity	5…95 % RH
Short-circuit protection	Yes
Overload protection	120%…180% Inominal, hiccup mode with automatic recovery
Mains failure bridge-over time	20 ms
Insulation voltage (input / output)	3 kV
Insulation voltage (input / earth)	2 kV
Insulation voltage (output / earth)	0.5 kV
Shock resistance	30 g in all directions (IEC 60068-2-27)
Vibration resistance	10…500 Hz, constant acceleration 5 g, 10 minutes/cycle, 60 minutes/axis (IEC 60068-2-6)
Connection system	Screw connection (Input and Output)
Physical Weight (kg)	0.33
Dimensions L x W x H (cm)	12.9 x 9.7 x 3

Industrial Applications

1. Powering PLC/HMI in Compact Industrial Control Panels

This power supply is ideal for providing stable 24 V DC power to Programmable Logic Controllers (PLCs) and Human-Machine Interfaces (HMIs) within industrial control cabinets. Its compact form factor (12.9 cm D x 3.0 cm H x 9.7 cm W) allows for efficient use of space in crowded enclosures, while the 100 W output and 4.5 A current adequately supply typical control components. The wide input voltage range (90-264 V AC) ensures compatibility with various global industrial power grids.

Problem Solved

Provides reliable, stable, and space-efficient 24V DC power to critical control components in automation systems, reducing cabinet footprint and ensuring consistent operation in environments with fluctuating AC input.

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2. Embedded Power for OEM Machinery and Equipment

The Weidmuller PRO PM 100W 24V 4.5A is well-suited for integration into Original Equipment Manufacturer (OEM) machinery. Its robust design and operating temperature range of -20 °C to 70 °C, along with overload and short-circuit protection, ensure reliable operation within the challenging thermal and electrical conditions often found inside industrial machines. The IP20 rating is suitable for integration within machine enclosures, providing protection from solid objects.

Problem Solved

Offers a durable and protected 24V DC power source for internal machine components (e.g., sensors, actuators, motor controllers), simplifying machine design, enhancing reliability, and preventing damage from electrical faults.

OEM equipmentmachine integration24V DCindustrial machineryrobust-20°C to 70°Coverload protectionshort-circuit protectionIP20

3. Decentralized 24V DC Supply for Building Management Systems

This power supply can be used for decentralized 24V DC power distribution in building automation systems, such as powering HVAC controls, lighting systems, or access control panels. Its panel mount, screw fix installation is ideal for mounting within facility control boxes, and the 86% efficiency contributes to overall energy savings in commercial installations. The mains failure bridge-over time of 20ms helps maintain system stability during minor power fluctuations.

Problem Solved

Enables localized, efficient, and stable 24V DC power for various building automation devices, improving system reliability and reducing central power distribution cabling complexity.

Building automationHVAC controllighting systemsaccess control24V DC distributionpanel mountenergy efficiencymains failure bridge-over