Finder 78.X2.1.440.2414 – 78 Series Switch mode power supplies

Why Choose the Finder 78.X2.1.440.2414 Industrial Switch Mode Power Supply?

The Finder 78.X2.1.440.2414 is a high-performance 240 W, 24 V DC, 10 A industrial switch mode power supply (SMPS) designed for reliable power distribution in industrial automation, electrical control panels and machinery applications. Part of the Finder Series 78, this dual-phase DIN rail power supply combines a wide AC/DC input range, adjustable regulated output voltage, active power factor correction and an auxiliary DC OK signalling contact.

Delivering a nominal 24 V DC output at 10 A, the Finder 78.X2.1.440.2414 provides 240 W of rated output power. Its output voltage can be adjusted between 24 and 28 V DC, making it suitable for compatible programmable logic controllers, industrial sensors, relays, actuators and electronic control equipment.

The power supply accepts an operating input range of 180–550 V AC or 254–780 V DC. Its dual-phase input configuration is particularly useful for industrial electrical installations with higher-voltage AC supplies.

Featuring 91% efficiency, a double-stage conversion architecture with active power factor correction (PFC), a volt-free DC OK monitoring contact and a compact 63.2 mm-wide DIN rail enclosure, the Finder 78.X2.1.440.2414 provides a professional solution for industrial DC power systems.

Key Advantages

• 240 W rated output power: Provides substantial power capacity for industrial control and automation equipment.
• 24 V DC regulated output: Suitable for compatible PLCs, sensors, relays and industrial electronic devices.
• 10 A rated output current: Supports multiple low-voltage loads within the specified power limits.
• Adjustable output voltage: Allows adjustment from 24 to 28 V DC.
• Dual-phase AC input: Designed for higher-voltage industrial AC supply arrangements.
• Wide AC operating range: Accepts 180–550 V AC.
• DC input compatibility: Supports 254–780 V DC supply systems.
• Active power factor correction: Improves input power characteristics and supports efficient industrial power conversion.
• 91% efficiency: Helps minimise conversion losses and unnecessary heat generation.
• DC OK signalling contact: Provides a volt-free auxiliary contact for monitoring the output supply condition.
• 3 kV input-to-output isolation: Provides electrical separation between the supply and low-voltage output circuits.
• Short-circuit protection: Helps protect the power supply during output fault conditions.
• Adjustable regulated output: Supports applications requiring controlled 24 V DC distribution.
• DIN rail mounting: Simplifies installation in industrial electrical cabinets.
• Compact construction: Provides 240 W output capacity in a housing approximately 63.2 mm wide.
• Industrial temperature capability: Designed for operation from −30 to +70 °C, subject to output derating.

Key Features

• Finder Series 78 industrial switch mode power supply.
• Type 78.X2 dual-phase input configuration.
• 240 W rated output power.
• 24 V DC nominal output voltage.
• 10 A rated output current.
• 24–28 V DC adjustable output voltage.
• Single regulated DC output.
• 180–550 V AC operating input voltage.
• 254–780 V DC operating input voltage.
• 220–500 V AC nominal supply range.
• 311–705 V DC nominal supply range.
• Double-stage switch mode conversion.
• Active power factor correction (PFC).
• 91% rated efficiency.
• Volt-free DC OK auxiliary signalling contact.
• 3 kV input-to-output isolation.
• Integrated short-circuit protection.
• Adjustable regulated output.
• Universal AC/DC input capability within the specified ranges.
• 35 mm DIN rail mounting.
• Screw terminal electrical connections.
• 63.2 mm housing width.
• Operating temperature range of −30 to +70 °C with derating.
• CE, UKCA and cULus approvals.

Reliable 24 V DC Power for Industrial Automation

The Finder 78.X2.1.440.2414 converts compatible higher-voltage AC or DC supplies into a stable 24 V DC output for industrial automation and control systems.

Its 10 A rated output current and 240 W output capacity make it suitable for powering multiple appropriately rated industrial devices from a single supply.

Typical connected equipment includes programmable logic controllers, industrial sensors, electronic relays, control modules, instrumentation and compatible 24 V DC actuators.

The regulated output voltage can be adjusted between 24 and 28 V DC, providing flexibility where connected equipment permits voltage adjustment or where compensation for distribution cable voltage drop is required.

When adjusting the output voltage, installers must ensure that all connected devices can tolerate the selected voltage and that the power supply remains within its permitted current and power ratings.

Wide-Range Dual-Phase AC and DC Input

A distinguishing feature of the Finder 78.X2.1.440.2414 is its dual-phase AC input configuration, designed for industrial applications using higher-voltage electrical distribution systems.

The power supply accepts an AC operating range of 180–550 V AC, with a nominal AC supply range of 220–500 V AC. This makes it suitable for appropriately configured industrial AC systems, including applications where power is taken between two phases.

The unit also supports a DC operating input range of 254–780 V DC, providing flexibility for compatible industrial DC distribution arrangements.

Its broad input capability can simplify the design of equipment intended for different industrial supply environments, reducing the need for separate power supply variants in some applications.

The input voltage and wiring arrangement must always comply with the manufacturer's installation instructions. The dual-phase input designation should not be confused with a three-phase power supply configuration.

Double-Stage Switch Mode Conversion with Active PFC

The Finder 78.X2.1.440.2414 incorporates a double-stage switch mode conversion architecture with active power factor correction.

Active PFC helps improve the relationship between input voltage and input current, supporting more efficient use of the electrical distribution system and reducing undesirable input current characteristics.

This feature is particularly useful in industrial installations containing multiple electronic power supplies and automation components.

With a specified 91% efficiency, the power supply converts incoming electrical energy into regulated DC output while limiting conversion losses.

High conversion efficiency can reduce the heat generated inside electrical control cabinets and support more effective overall thermal management.

DC OK Auxiliary Contact for Power Supply Monitoring

The Finder 78.X2.1.440.2414 includes a volt-free DC OK auxiliary signalling contact, providing a convenient way to monitor the power supply's output condition.

This contact can be incorporated into a suitable PLC input, alarm circuit or supervisory control system to indicate the condition of the DC supply.

Power supply monitoring is especially valuable in industrial automation systems where loss of control voltage could interrupt machinery operation or affect process availability.

Using the DC OK contact, system designers can provide status monitoring, fault indication or diagnostic information within a larger electrical control installation.

The contact must be wired within its specified electrical ratings and interpreted according to the manufacturer's switching thresholds and operating instructions.

Electrical Protection and Operating Reliability

The Finder 78.X2.1.440.2414 incorporates short-circuit protection to help protect the power supply when abnormal output conditions occur.

Its regulated DC output is designed to provide a stable supply voltage under normal operating conditions, while the internal electronic protection functions support dependable operation within the specified electrical limits.

The power supply provides 3 kV input-to-output isolation, supporting electrical separation between the higher-voltage input circuit and the low-voltage DC output.

As with all industrial power supplies, the internal protective features do not replace correctly selected upstream circuit protection, suitable cable sizing, appropriate earthing and compliance with applicable electrical installation standards.

The supply should be installed in a suitable enclosure with adequate ventilation and clearances to maintain reliable thermal performance.

Compact DIN Rail Installation

The Finder 78.X2.1.440.2414 is designed for mounting on a standard 35 mm DIN rail, making it suitable for integration into industrial electrical cabinets and machinery control panels.

Its enclosure measures approximately 125.2 × 63.2 × 118.8 mm (height × width × depth), providing a compact installation footprint for a 240 W industrial power supply.

Screw terminal connections support secure input, output and auxiliary signalling wiring.

The specified ambient operating temperature range is −30 to +70 °C, with output derating required under applicable conditions. Installers should consult the manufacturer's derating information when designing equipment for high ambient temperatures or restricted ventilation.

The power supply is intended for installation within appropriately designed electrical equipment by suitably qualified personnel.

Typical Applications

• Industrial automation control panels.
• Dual-phase industrial AC power distribution systems.
• 24 V DC programmable logic controller power supplies.
• Industrial sensor and actuator circuits.
• Industrial relays and interface modules.
• Manufacturing machinery and production equipment.
• Industrial process control installations.
• Building automation and monitoring systems.
• Packaging and material-handling machinery.
• Industrial instrumentation and electronic control equipment.
• Control cabinet DC power distribution.
• Power supply status monitoring using the DC OK contact.
• OEM industrial machinery and electrical assemblies.
• Equipment requiring an adjustable 24–28 V DC supply.
• Industrial installations requiring wide-range AC/DC input compatibility.