Weidmuller PRO MAX3 480W 24V 20A DIN Rail Power Supply

Technical Overview

480W 24V 20A DIN rail power supply with 3x320-575VAC/450-800VDC input, adjustable output, IP20, and -25°C to 70°C operating range.

Key Features

Single output, 24V DC (adjustable from 22.5V to 29.5V)
480W output power at 20A output current
Wide range AC input (3 x 320VAC to 3 x 575VAC / 2 x 360VAC to 2 x 575VAC) and DC input (450VDC to 800VDC)
High boost capability and full power available across a wide operating temperature range (-25°C to 70°C)
Compact design with a low width of 70mm, optimized for confined spaces
Secure screw connection for reliable wiring
IP20 protection degree
Approvals include CE, cULus, EAC, TUV, cURus, and GERMLLOYD standards

Technical Specification Matrix

Parameter	Value
Output Power Max	480W
Output Voltage - Output 1	24V DC (adjustable from 22.5V to 29.5V)
Output Current - Output 1	20A (at 60°C)
Input Voltage AC Range	3 x 320VAC to 3 x 575VAC / 2 x 360VAC to 2 x 575VAC
Rated Input Voltage AC	3x 400VAC to 3x 500VAC (wide-range input)
Input Voltage DC Range	450VDC to 800VDC (maximum 500VDC according to UL508)
AC Frequency Range	45Hz to 65Hz
Power Supply Output Type	Adjustable, Fixed
Connection System	Screw connection
Protection Class	I, with PE connection
Insulation Voltage (Input / Output)	4 kV
Insulation Voltage (Input / Earth)	3.5 kV
Insulation Voltage (Output / Earth)	0.5 kV
Degree of Protection	IP20
Operating Temperature	-25°C to 70°C
Storage Temperature	-40°C to 85°C
Efficiency	91.5%
Physical Weight (kg)	1.6
Dimensions L x W x H (cm)	15 x 7 x 13

Industrial Applications

1. Industrial Control Panels for Factory Automation

This power supply is ideal for providing stable and regulated 24VDC power to critical industrial control systems within factory automation environments, including PLCs, sensors, and actuators.

Problem Solved

Provides reliable 24VDC power from various AC (320-575VAC) or DC (450-800VDC) input sources in control cabinets. It ensures uninterrupted operation of equipment by handling continuous overloads (up to 20%) or short-term peak loads (up to 300%) and operates across a wide temperature range (-25°C to 70°C). Its compact 70mm width is well-suited for space-efficient DIN rail mounting in dense panel layouts.

24VDC480W20Awide input voltageoverload capabilitypeak loadcompactDIN rail mountoperating temperature -25°C to 70°C

2. Building Management Systems (BMS) Power Distribution

Suitable for providing robust 24VDC power to intelligent building management systems, including HVAC controls, lighting systems, and security devices within commercial and industrial buildings.

Problem Solved

Offers a highly reliable 24VDC, 20A power source with an IP20 rating, making it suitable for secure installation within electrical enclosures. The wide operating temperature range (-25°C to 70°C) ensures stable power delivery for critical building infrastructure across various indoor environmental conditions.

24VDC20A480WIP20operating temperature -25°C to 70°Cwide input voltagescrew connection

3. Renewable Energy System Auxiliary Power

Can be utilized as an auxiliary power supply in renewable energy installations, such as solar farms or wind turbines, to power 24VDC control and monitoring equipment.

Problem Solved

Its capability to accept a wide DC input voltage range (450-800VDC) makes it suitable for direct connection to higher voltage DC buses commonly found in renewable energy systems, efficiently stepping down to a stable 24VDC for control circuitry. The robust design, 4kV input/output isolation, and wide operating temperature range (-25°C to 70°C) ensure reliability in outdoor-adjacent or environmentally exposed enclosures.

24VDC480W20A450-800VDC input4kV isolationoperating temperature -25°C to 70°CIP20