Finder 78.X3.1.440.2414 – 78 Series Switch mode power supplies

Why Choose the Finder 78.X3.1.440.2414 Three-Phase Switch Mode Power Supply?

The Finder 78.X3.1.440.2414 is a high-performance 240 W three-phase switch mode power supply designed to deliver reliable, regulated 24 V DC power for industrial automation, machinery control and electrical distribution systems. Part of the Finder 78 Series, this DIN-rail-mounted power supply combines a wide three-phase AC input range, active power factor correction and integrated protection functions in a compact industrial housing.

With a nominal 380–480 V AC three-phase input, the Finder 78.X3.1.440.2414 provides a regulated 24 V DC output at 10 A, delivering up to 240 W of output power. Its output voltage is adjustable between 24 and 28 V DC, enabling integration with compatible industrial control devices and electronic equipment. The unit also supports high-voltage DC input operation.

Featuring active power factor correction (PFC), efficiency of approximately 92% and an auxiliary DC OK volt-free feedback contact, this power supply provides efficient conversion and convenient output-status monitoring. Its integrated short-circuit and thermal protection, screw terminal connections and standard DIN-rail mounting make it particularly suitable for demanding industrial control cabinets.

Key Advantages

• 240 W rated output power for industrial automation and control systems.
• 24 V DC regulated output for compatible industrial electrical equipment.
• 10 A nominal output current for appropriately rated connected loads.
• Adjustable 24–28 V DC output for greater application flexibility.
• Three-phase 380–480 V AC nominal input for industrial electrical distribution systems.
• High-voltage DC input compatibility for suitable DC supply installations.
• Active power factor correction for improved input power characteristics.
• Double-stage power conversion with active PFC.
• Approximately 92% efficiency to help minimise conversion losses.
• DC OK volt-free feedback contact for remote power supply monitoring.
• Short-circuit protection with automatic recovery.
• Thermal protection against overheating.
• Compact 63 mm housing width for efficient control cabinet installation.
• 35 mm DIN-rail mounting for straightforward integration.
• Screw terminal connections for secure electrical wiring.

Key Features

• Finder 78 Series industrial switch mode power supply.
• Model: 78.X3.1.440.2414.
• Supply configuration: Three-phase AC or compatible high-voltage DC input.
• Rated output power: 240 W.
• Nominal output voltage: 24 V DC.
• Nominal output current: 10 A.
• Number of DC outputs: 1.
• Adjustable output voltage: 24–28 V DC.
• Nominal three-phase AC input: 380–480 V AC.
• AC operating input range: 340–550 V AC.
• DC operating input range: 480–780 V DC.
• Power conversion: Double-stage with active PFC.
• Efficiency: Approximately 92%.
• Auxiliary feedback: DC OK volt-free contact.
• Short-circuit protection: Hiccup mode with automatic recovery.
• Thermal protection: Automatic shutdown under overheating conditions.
• Operating temperature: −30 to +70 °C, with applicable derating.
• Input-to-output isolation: 3 kV.
• DIN-rail mounting for industrial electrical enclosures.
• Screw terminal connections.
• Housing dimensions: 63 × 125.2 × 118.9 mm.
• Protection rating: IP20.

Efficient Three-Phase Power Conversion with Active PFC and DC OK Monitoring

The Finder 78.X3.1.440.2414 converts a compatible three-phase AC supply into a stable 24 V DC output using a double-stage switch mode conversion architecture. Its integrated active power factor correction helps improve input power characteristics, while the regulated output supports reliable operation of compatible industrial automation and electronic control equipment.

The adjustable output range of 24–28 V DC allows the supply voltage to be configured according to the requirements of the connected equipment. At its nominal 24 V DC setting, the unit delivers up to 10 A, corresponding to a rated output power of 240 W. Operation at adjusted output voltages must remain within the manufacturer's applicable power and current limits.

An integrated DC OK volt-free auxiliary contact provides a convenient means of monitoring the power supply's output condition through a compatible PLC input, alarm circuit or supervisory system. The supply also incorporates short-circuit protection with automatic recovery and thermal protection that shuts down the unit under excessive temperature conditions. Its DIN-rail housing enables straightforward integration into industrial control cabinets, subject to the specified ventilation, clearance and operating requirements.

Typical Applications

• Industrial automation and PLC control panels.
• Three-phase industrial electrical distribution systems.
• 24 V DC machinery control circuits.
• Industrial sensors, transmitters and instrumentation.
• Process control and manufacturing equipment.
• Industrial control relays and interface modules.
• Factory automation and production machinery.
• Packaging and material handling systems.
• Industrial monitoring and signalling equipment.
• Control cabinets requiring DC OK status feedback.
• OEM machinery with three-phase AC supply infrastructure.
• DIN-rail-mounted 24 V DC auxiliary power systems.