Why Choose the Finder 78.12.1.230.2482 24 V DC DIN Rail Power Supply?
The Finder 78.12.1.230.2482 is a compact 24 V DC switched-mode power supply (SMPS) specifically designed to provide dependable power for Finder OPTA programmable logic relays and compatible industrial automation equipment. Part of the Finder Series 78, this DIN rail mounted power supply delivers a regulated 24 V DC output, a nominal continuous output current of 500 mA and a rated output power of 12 W in a slim 17.5 mm wide housing.
Designed for industrial control panels and automation installations, the Finder 78.12.1.230.2482 converts a compatible AC mains supply into a stable low-voltage DC output. Its 110–240 V AC nominal input, broad operating input range and compact modular construction make it an excellent choice for powering electronic control systems without occupying unnecessary cabinet space.
A key advantage of this model is its compatibility with the Finder OPTA Series 8A programmable logic relay range. It is designed to support reliable operation of the controller and accommodate short-duration current demands associated with compatible connected loads. Its specified 2 A peak output capability for 3 ms provides additional flexibility during brief transient demand.
With integrated short-circuit protection, thermal protection and surge protection, the Finder 78.12.1.230.2482 is designed to support reliable industrial operation. Its SELV-compatible output, efficient switched-mode design and straightforward DIN rail installation make it a practical solution for modern industrial and building automation systems.
Key Advantages
- 24 V DC regulated output for industrial controllers and compatible electronic equipment.
- 12 W rated output power for compact automation systems.
- 500 mA continuous output current under specified operating conditions.
- 2 A peak current for 3 ms to accommodate brief transient demands.
- Specifically designed for Finder OPTA Series 8A programmable logic relays.
- 110–240 V AC nominal input for standard industrial mains supplies.
- 100–265 V AC operating input range at rated output under specified conditions.
- 17.5 mm slimline housing helps conserve space in electrical control cabinets.
- 35 mm DIN rail mounting for quick and convenient installation.
- Short-circuit protection helps protect the power supply against output faults.
- Integrated thermal protection supports safe operation under abnormal temperature conditions.
- Built-in surge protection provides additional resilience against electrical disturbances.
- SELV-compatible design for suitable low-voltage applications.
- Approximately 85% efficiency helps reduce wasted energy and heat generation.
- Low standby power consumption of less than 0.4 W under specified conditions.
- LED status indication supports convenient visual monitoring.
- Suitable for industrial automation, building controls, OEM machinery and low-voltage electronic systems.
Key Features
- Finder Series 78 switched-mode power supply.
- Dedicated OPTA-compatible power supply.
- Power supply technology: Switched-mode, flyback circuit design.
- Output voltage: 24 V DC.
- Rated continuous output current: 0.5 A.
- Rated output power: 12 W.
- Short-duration peak output current: 2 A for 3 ms.
- Nominal input voltage: 110–240 V AC.
- Rated-load AC input operating range: 100–265 V AC.
- Input frequency: 50/60 Hz.
- Number of outputs: 1.
- Output type: Fixed DC voltage.
- Typical efficiency: Approximately 85%.
- Standby power consumption: Less than 0.4 W.
- Input-to-output isolation: 3 kV.
- Short-circuit, thermal and surge protection.
- SELV-compatible output.
- Housing width: 17.5 mm.
- 35 mm DIN rail mounting.
- LED status indication.
- IP20 protection rating for installation in suitable enclosures.
Technical Specifications
- Manufacturer: Finder
- Series: 78
- Manufacturer part number: 78.12.1.230.2482
- Product type: Industrial DIN rail switched-mode power supply
- Primary application: Finder OPTA Series 8A programmable logic relays
- Power conversion: AC to DC
- Topology: Switched-mode, flyback
- Number of outputs: 1
- Output voltage: 24 V DC
- Output type: Fixed
- Rated output current: 500 mA
- Rated output power: 12 W
- Peak output current: 2 A for 3 ms
- Nominal AC input voltage: 110–240 V AC
- AC input range at rated output: 100–265 V AC
- Reduced-load AC input range: 88–100 V AC at 80% rated current
- Input frequency: 50/60 Hz
- Efficiency: Approximately 85%
- Standby power consumption: Less than 0.4 W
- Isolation voltage: 3 kV
- Protection functions: Short-circuit, thermal and surge protection
- Safety classification: Suitable for SELV applications
- Housing width: 17.5 mm
- Housing height: 88.8 mm
- Housing depth: 60.8 mm
- Mounting type: 35 mm DIN rail
- Status indication: LED
- Protection rating: IP20
- Operating ambient temperature: −20 to +40 °C at specified nominal operating conditions; refer to the manufacturer's temperature derating data for other conditions
- Approvals and conformity: CE, UKCA, cULus, EAC and ENEC
- RoHS compliance: Yes
- Country of origin: Italy
Designed for Finder OPTA Programmable Logic Relays
The Finder 78.12.1.230.2482 is specifically developed to supply power to the Finder OPTA Series 8A programmable logic relay family. OPTA controllers are used in industrial automation, machine control, building management and connected control systems, where a dependable low-voltage DC supply is essential.
The power supply delivers a fixed 24 V DC output, making it suitable for the power requirements of compatible OPTA controllers and associated low-power automation components. By providing a dedicated power source, the unit helps maintain reliable controller operation during normal system activity.
Its 2 A peak current capability for 3 ms is particularly useful for accommodating very brief current demands. This short-duration peak capability does not increase the continuous output rating: the total connected load must remain within the applicable continuous current and power limits.
The unit's 17.5 mm wide housing occupies approximately one standard modular DIN rail position, making it convenient for compact electrical cabinets and automation enclosures. Its modular construction supports installation alongside OPTA controllers, protection devices and other compatible DIN rail components.
Although developed for Finder OPTA applications, the power supply can also be considered for other compatible 24 V DC electronic loads, provided their voltage, current, transient and safety requirements are satisfied.
Efficient Switched-Mode Power Conversion and Integrated Protection
The Finder 78.12.1.230.2482 uses switched-mode power supply technology to convert AC mains voltage into regulated DC power. Unlike a traditional linear supply, an SMPS uses high-frequency electronic switching to achieve efficient power conversion within a compact housing.
With an efficiency of approximately 85%, the unit is designed to limit unnecessary energy loss and heat generation during normal operation. Its low standby consumption also makes it suitable for control systems that remain energised for extended periods.
Integrated short-circuit protection helps protect the power supply if an output fault occurs. Thermal protection provides additional protection against excessive internal temperature, while built-in surge protection supports operation in industrial electrical environments.
The SELV-compatible output and specified input-to-output isolation support use in appropriate extra-low-voltage control circuits. Electrical installation, earthing arrangements and connected equipment must nevertheless comply with the applicable standards and the manufacturer's installation instructions.
The power supply also includes LED status indication, allowing technicians to check operating status during commissioning and fault-finding. This can help simplify maintenance in control cabinets containing multiple automation components.
Compact DIN Rail Installation and Load Selection
The Finder 78.12.1.230.2482 is designed for installation on a standard 35 mm DIN rail within an appropriate electrical enclosure. Its compact dimensions of approximately 17.5 × 88.8 × 60.8 mm allow it to fit into space-constrained control panels.
When selecting the power supply, the combined continuous current consumption of the connected equipment must be considered. At a rated output of 24 V DC and 500 mA, the supply provides 12 W of continuous output power under the specified rating conditions.
Connected equipment should not be selected solely on the basis of its nominal voltage. The total steady-state load, start-up demand and possible simultaneous activation of connected devices must also be assessed. The specified 2 A peak current for 3 ms is intended for brief transients rather than sustained overload operation.
The supply should be installed with adequate ventilation and within its permitted ambient temperature range. Output capability may be affected by elevated temperatures or reduced input voltage, so the manufacturer's derating instructions must be followed.
All mains wiring and protective arrangements should be installed by suitably qualified personnel. The device is a power supply, not an isolation switch, circuit breaker or substitute for required upstream electrical protection.
Typical Applications
- Finder OPTA Series 8A programmable logic relay power supply.
- Industrial automation control panels.
- Building automation and management systems.
- Compact PLC and programmable controller installations.
- Low-power 24 V DC electronic control circuits.
- Industrial monitoring and measurement equipment.
- OEM machinery and embedded automation systems.
- Smart building control equipment.
- Industrial process monitoring systems.
- Control cabinet auxiliary power supplies.
- Low-voltage sensor and interface circuits within the available power budget.
- Automation system upgrades and replacement power supplies.
- DIN rail mounted electrical and electronic installations.
