Weidmuller PRO QL 72W 24V 3A Switch-Mode Power Supply Unit

Technical Overview

Compact 72W 24V DC switch-mode power supply with 90-264V AC input, >88% efficiency, IP20 protection, and screw terminals for industrial applications.

Key Features

72W output power at 24 V DC.
Wide AC input voltage range of 90-264 V AC and DC input 110-370 V DC.
Operating temperature range from -30 °C to 70 °C.
IP20 protection degree.
Screw connection terminals for secure input and output wiring.
Metal, corrosion-resistant housing for durability.
High typical efficiency of 88%.
Integrated short-circuit protection.
Green LED status indication for operating voltage OK.
Vibration resistance of 2.3 g (IEC 60068-2-6).
Horizontal DIN rail mounting with side-by-side installation capability.

Technical Specification Matrix

Parameter	Value
Output Power	72 W
Rated Output Voltage	24 V DC
Output Voltage Range	24 V DC (min) to 28 V DC (max)
Continuous Output Current	3A @ ≤50 °C, 1.65 A @ 70°C
AC Input Voltage Range	90...264 V AC
DC Input Voltage Range	110...370 V DC (derating at <120 V DC)
Frequency Range AC	45...65 Hz
Rated Input Voltage	100...240 V AC
Inrush Current	40 A @ 230 V AC, 25 °C
Input Current @ 230 V AC	0.94 A
Input Current @ 115 V AC	1.45 A
Degree of Efficiency (typ.)	88%
Protection Degree	IP20
Operating Temperature	-30 °C...70 °C
Storage Temperature	-40 °C...85 °C
Humidity (Operating)	5...95% rel. humidity, no condensation
Mounting Position	Horizontal on TS35 mounting rail
Minimum Clearances	50 mm at top & bottom for air circulation
Housing Version	Metal, corrosion resistant
Connection System	Screw connection
Residual Ripple, Breaking Spikes	<120 mVpp
Capacitive Load	6.000 µF
AC Failure Bridging Time @ Inom	> 80 ms @ 230 V AC / > 20 ms @ 115 V AC
Noise Emission	Class B (EN55032)
Vibration Resistance	2.3 g (IEC 60068-2-6)
Pollution Severity	2
Protection Class	II
Insulation Voltage, Input/Output	3.5 kV
Input Terminals	3 for L/N/PE
Output Terminals	4 (++/-)
Tightening Torque (Input/Output)	0.5 Nm (min), 0.6 Nm (max)
Input Wire Cross-section (Rigid/Flexible min)	0.5 mm²
Input Wire Cross-section (Rigid max)	6 mm²
Output Wire Cross-section (Rigid/Flexible min)	0.5 mm²
Output Wire Cross-section (Rigid max)	6 mm²
Physical Weight (kg)	0.56
Dimensions L x W x H (cm)	10.6 x 3.2 x 12.5

Industrial Applications

1. Industrial Control Panels

This power supply is ideal for powering Programmable Logic Controllers (PLCs), Human-Machine Interfaces (HMIs), and other 24V DC components commonly found in industrial control cabinets.

Problem Solved

Provides a stable and efficient 24V DC power source for critical control systems within an industrial environment, ensuring reliable operation even with fluctuating AC input. Its compact 32mm width allows for efficient DIN rail mounting in crowded panels, and the screw connections ensure robust electrical integrity against vibration.

PLC powerHMI supplyControl cabinetDIN rail mounting24V DC automationStable power supply

2. Building Automation Systems

Suitable for supplying reliable power to various sensors, actuators, and communication modules within modern Building Management Systems (BMS).

Problem Solved

Offers a robust, corrosion-resistant power supply for building automation components that may be installed in diverse indoor environments. It reliably handles wide temperature variations (-30°C to 70°C) and ensures continuous operation with its broad input voltage range and >80ms AC failure bridging time, critical for maintaining building functions.

BMS powerActuator supplySensor powerCommunication moduleBuilding managementPower stabilityWide temperature range

3. Machine Vision Systems

Powers sensitive components like industrial cameras, LED lighting arrays, and embedded controllers used in machine vision systems for quality inspection or robotic guidance.

Problem Solved

Delivers precise and stable 24V DC power with minimal residual ripple (<120 mVpp), crucial for sensitive machine vision components to prevent noise-related image degradation or controller malfunctions. Its short-circuit protection safeguards expensive vision equipment from potential electrical faults, ensuring system longevity.

Machine vision powerIndustrial camerasLED lighting supplyEmbedded controllerQuality inspectionLow ripple voltageShort-circuit protection