Why Choose the Finder 78.W2.1.440.2404 Industrial Switch Mode Power Supply?
The Finder 78.W2.1.440.2404 is a high-performance 120 W industrial switch mode power supply (SMPS) designed to provide stable and reliable 24 V DC power for industrial automation, electrical control panels and machinery applications. As part of the advanced Finder 78 Series power supply range, this dual-phase power supply combines a wide AC/DC input voltage range, efficient power conversion and integrated monitoring functionality for demanding industrial installations.
This industrial power supply converts a high-voltage AC or DC input into a regulated 24 V DC output, helping ensure dependable operation of connected automation components. Its adjustable output voltage, integrated DC OK auxiliary feedback contact and electronic protection functions make it suitable for powering PLCs, sensors, industrial relays, monitoring equipment and electronic control modules.
With a rated output power of 120 W, a nominal output current of 5 A and a 200–500 V AC nominal input range, the Finder 78.W2.1.440.2404 is particularly suitable for industrial installations using higher-voltage electrical supplies. Its output voltage can be adjusted between 24–28 V DC, while its compact 40 mm-wide DIN rail housing enables efficient installation inside industrial control cabinets and electrical distribution panels.
Key Advantages
- High-performance 120 W industrial switch mode power supply designed for reliable DC power distribution.
- 24 V DC regulated output provides stable power for industrial automation equipment.
- 5 A rated output current suitable for PLCs, sensors, relays and control circuits.
- 200–500 V AC nominal input range supports higher-voltage industrial electrical systems.
- Dual-phase input capability provides flexibility for industrial power distribution installations.
- Adjustable 24–28 V DC output allows configuration for compatible automation equipment.
- Up to 91% efficiency helps minimise power losses and heat generation.
- Integrated DC OK auxiliary feedback contact enables power supply status monitoring.
- Short-circuit protection with automatic recovery supports dependable operation during electrical faults.
- Thermal shutdown and overvoltage protection help protect the power supply.
- 6.5 A peak output current capability supports brief increases in load demand.
- Compact 40 mm-wide construction saves valuable installation space.
- Standard 35 mm DIN rail mounting simplifies installation and maintenance.
Key Features
- Finder 78 Series industrial switch mode power supply.
- 120 W rated output power.
- 24 V DC nominal output voltage.
- 5 A nominal output current.
- 24–28 V DC adjustable output voltage.
- 200–500 V AC nominal input voltage range.
- 282–705 V DC nominal input voltage range.
- Wide-range single-phase or dual-phase AC input compatibility.
- Up to 91% power conversion efficiency.
- 6.5 A peak current capability for 5 ms.
- DC OK volt-free auxiliary feedback contact for output status indication.
- Regulated output voltage with less than 2% variation from no load to full load.
- 120 mV output voltage ripple at full load.
- 50 ms hold-up time at full load with 400 V AC input.
- Integrated short-circuit protection with hiccup-mode automatic recovery.
- Thermal protection with automatic shutdown.
- Overvoltage protection using varistor technology.
- Low standby power consumption.
- Parallel operation capability using an external diode for increased load current or redundancy.
- −25 to +70 °C operating temperature range, subject to derating.
- Screw terminal electrical connections.
- 35 mm DIN rail mounting in accordance with EN 60715.
- Compact housing for industrial electrical control cabinets.
Technical Specifications
- Manufacturer: Finder
- Series: 78 Series Switch Mode Power Supplies
- Model: 78.W2.1.440.2404
- Product type: Industrial switch mode DC power supply
- Power supply technology: Switching power supply (SMPS)
- Rated output power: 120 W
- Nominal output voltage: 24 V DC
- Adjustable output voltage: 24–28 V DC
- Rated output current: 5 A
- Peak output current (5 ms): 6.5 A
- Number of DC outputs: 1
- Nominal AC input voltage: 200–500 V AC
- Nominal DC input voltage: 282–705 V DC
- Extended AC input operating range: 180–550 V AC
- Extended DC input operating range: 254–780 V DC
- Input configuration: Single-phase or dual-phase AC; DC compatible
- Efficiency: Up to 91%
- Output voltage variation (no load to full load): Less than 2%
- Output voltage ripple at full load: 120 mV
- Hold-up time at full load (400 V AC input): 50 ms
- Auxiliary feedback: DC OK volt-free contact
- Short-circuit protection: Hiccup mode with automatic recovery
- Thermal protection: Automatic shutdown
- Overvoltage protection: Varistor
- Parallel operation: Supported with external diode
- Operating temperature: −25 to +70 °C, with derating
- Isolation voltage: 3 kV
- Mounting type: 35 mm DIN rail (EN 60715)
- Electrical connections: Screw terminals
- Dimensions (H × W × D): 125.2 × 40 × 122.8 mm
- Approvals and conformity: CE, cULus, UKCA
- Applicable standards: EN 61010-1, UL 61010
Reliable DC Power for Industrial Automation and Control Systems
Industrial switch mode power supplies such as the Finder 78.W2.1.440.2404 convert incoming AC or DC electrical power into a stable, regulated DC output suitable for automation equipment. By maintaining consistent output voltage under changing load conditions, the power supply helps support reliable operation of programmable logic controllers, industrial sensors, monitoring devices, electronic relays and control circuits.
The Finder 78.W2 Series is designed for industrial installations requiring wide input voltage compatibility and dependable 24 V DC power distribution. Its single-phase and dual-phase input capability makes it suitable for higher-voltage industrial electrical systems, while its efficient switching technology helps reduce energy losses and heat generation. The adjustable output voltage allows engineers to configure the supply for compatible equipment requiring voltages between 24 and 28 V DC.
An integrated DC OK auxiliary feedback contact provides a convenient method of monitoring power supply output status through compatible PLC inputs or industrial monitoring systems. This supports fault detection and preventative maintenance in automated installations. The power supply also includes short-circuit protection with automatic recovery, thermal shutdown and varistor-based overvoltage protection to help maintain dependable operation.
For applications requiring additional current capacity or improved availability, the Finder 78.W2.1.440.2404 supports parallel operation with appropriate external diode arrangements. Its compact DIN rail-mounted construction and screw terminal connections make it suitable for both new electrical control panel designs and upgrades to existing industrial automation systems.
Typical Applications
- Industrial PLC and programmable automation control systems.
- 24 V DC electrical control circuits and industrial control panels.
- Industrial sensors, proximity switches and monitoring equipment.
- Electronic relays, timers and interface modules.
- Industrial machinery and OEM automation equipment.
- Packaging, production and material handling systems.
- High-voltage industrial electrical distribution installations.
- Building automation and industrial control systems.
- Process monitoring and instrumentation equipment.
- Industrial communication and control modules.
- Power supply monitoring using DC OK auxiliary feedback.
- Redundant DC power supply arrangements using suitable external components.
- Machine building and electrical cabinet installations.
