GUIDE · POWER SUPPLY UNIT
How to Choose the Right DIN Rail PSU
Guide for industrial DIN rail power supplies and automation systems
Choosing the right DIN rail power supply is important for a stable and reliable power supply. Power output, input voltage, environment, and features dictate the choice. In the guide, we compare Delta's various series and help you find the right solution for your application.
Start With the Application
Select the series that best matches your application and environment.
Advanced
Automation
PLC, I/O, control systems and dynamic loads.
Recommendation:
DIN Pro
Industry &
Machine Control
Machinery, control cabinets and industrial automation systems.
Recommendation:
Force GT
3-phase
Installation
Compact format, high efficiency and 3-phase supply are prioritized.
Recommendation:
DIN Eco
Marina &
Harsh Environments
Marine systems, offshore and installations with vibrations or high environmental demands.
Recommendation:
QliQ M
Which series suits your application?
Compare Delta's DIN rail mounted power supplies and find the right solution.
DIN Pro
Advanced automation
- AC/DC Input
- Power Boost up to 150%
- Remote ON/OFF
- High EMC Immunity
- Conformal coating
FitsPLC, advanced machine control and dynamic loads.
See DIN Pro →
Force GT
Industrial automation
- Constant current mode
- Ultra Power Saving Mode
- High Efficiency
- 1-phase and 3-phase
- Parallel connection on selected models
FitsMachine control. I/O and industrial control cabinets.
See Force-GT →
DIN Eco
Compact 3-phase solution
- 3-phase AC input
- High Efficiency
- Compact design
- High power density
- Power Boost
FitsCompact control cabinets and energy-efficient 3-phase installations.
See YOUR Eco →
CliQ M
Marine & demanding environments
- DNV and ABS Certification
- Advanced Power Boost
- Metal enclosure
- Conformal coating
- High robustness
FitsMarina system, offshore and heavy industry.
C CliQ M →
LYTE II
Cost-effective standard choice
- Compact design
- Low idle consumption
- Easy Installation
- Focus on standard applications
Fits: OEM., smaller machines and standard installations.
See LYTE II →
CHROME II
Real estate automation
- Class 2 Insulation
- NEC Class 2
- Compact Format
- Low power consumption
FitsBMS, KNX, elevators, security systems and smaller control cabinets.
To CHROME II →
Compare the Series
Technical comparison of Delta's power supplies
| Series | Power range | Feed | Output Voltage | Key features | Typical use |
|---|---|---|---|---|---|
| DIN Pro | 120–960W | AC / DC | 12 / 24 / 48 V DC | Power Boost up to 150 %, Remote ON/OFF, high EMC immunity and conformal coating | Advanced automation and dynamic loads |
| Force GT | 120–960 W* | 1-phase / 3-phase* | 24 / 48 V DC* | Constant current mode, ultra-slim design and high efficiency | Industrial automation and machine control |
| DIN Eco | 120–960W | 3-phase AC | 24 / 48 V DC | High efficiency, compact design and Power Boost | 3-phase installations and compact control cabinets |
| CliQ M | 81,6–960 W | 1-phase / 3-phase* | 24V DC | Advanced Power Boost, DNV/ABS, metal casing and conformal coating | Marine installations, offshore and heavy industry |
| LYTE II | Up to 960 W* | AC / DC | 12 / 24 / 48 V DC* | Cost-effective design, low idle consumption, and compact format | OEM, standard automation and smaller machines |
| CHROME II | 15–100 W* | single-phase AC | 5 / 12 / 24 / 48 V DC* | Class II double insulation, NEC Class 2 / LPS and DIN 43880 | Building automation, BMS/KNX and smaller control systems |
Quick Guide - Which Power Supply Should You Choose?
Follow these steps to quickly find the right solution.
Step 1 -
Power demand
Calculate your continuous load and account for starting currents and future expansion.
Step 2 -
Feed
Check if you have 1-phase, 3-phase, or need AC/DC input.
Step 3 -
Load type
Dynamic or inductive loads may require Power Boost and constant current mode.
Step 4 -
Environment & requirements
Temperature, EMC, marine requirements and certifications govern the choice of series.
Step 5 -
Select series
Match your needs with the recommendations above in the comparison table,
FAQ – Frequently Asked Questions about DIN Rail Power Supplies
Which series should I choose for advanced automation systems?
DIN Pro is developed for modern automation systems with high demands for integration, EMC immunity, and flexible AC/DC power supply.
Which power supply is best suited for marine installations?
CliQ M is developed for marine and extreme environments and has DNV and ABS certifications for offshore and marine systems.
When should you choose DIN Eco?
DIN Eco is best suited for 3-phase installations where compact design, energy efficiency, and high efficiency are important requirements
What power supply is best for standard industrial automation?
Force-GT is a robust standard choice for machine control, PLC systems, and industrial control cabinets.
Which series support parallel connection for redundancy?
Force-GT and CliQ M offer parallel connection on selected models for redundant systems and higher operational reliability.
Which power supply supports both AC and DC input?
DIN Pro supports both AC input 85–277 Vac and DC input 100–400 Vdc.
What is Advanced Power Boost (APB)?
APB is a function in CliQ M that provides extra power during dynamic loads and heavy starts.
Is LYTE II sufficient for industrial applications?
Yes, LYTE II is well-suited for standard installations, OEM production, and smaller industrial systems where advanced special features are not required.
Which power supply is best suited for small control systems or building automation?
CHROME II is developed for smaller control systems, BMS, KNX, and building automation.
Can these power supplies handle high temperatures?
Yes, several series are developed for industrial environments with high temperatures. DIN Pro can operate from -40°C to +80°C depending on the model and load.
Do you need help choosing the right PSU?
Are you unsure which power supply your application requires? We will help you choose the right power, input voltage, output voltage, and features based on load, environment, and reliability requirements.
