Why Choose the Finder 78.12.1.230.1202 LED Driver Power Supply?
The Finder 78.12.1.230.1202 is a compact 12 V DC, 12 W switch mode LED driver power supply designed to convert AC or DC supply voltage into a regulated low-voltage DC output. Part of the Finder Series 78, this power supply is suitable for compatible constant-voltage LED lighting systems and professional electrical installations.
Delivering a 12 V DC output at up to 1 A, the Finder 78.12.1.230.1202 provides a maximum output power of 12 W. Its nominal input rating of 110–240 V AC, 50/60 Hz, or 220 V DC, makes it suitable for a range of electrical supply arrangements.
The slim 17.5 mm DIN rail housing occupies just one modular width, making it especially useful in distribution boards, lighting control panels and automation enclosures where installation space is limited. Integrated electronic protection and efficient switch mode conversion support dependable operation of appropriately rated LED loads.
Key Advantages
- 12 V DC constant-voltage output: Designed to supply compatible low-voltage LED lighting equipment.
- 12 W maximum output power: Provides up to 1 A of regulated DC output current.
- Wide AC input capability: Nominal 110–240 V AC input at 50/60 Hz.
- DC input compatibility: Also supports a nominal 220 V DC supply.
- Slim 17.5 mm housing: Occupies one module of DIN rail space.
- Switch mode technology: Provides efficient AC/DC power conversion in a compact enclosure.
- Low standby consumption: Helps reduce unnecessary energy use when the output is unloaded.
- Short-circuit protection: Electronic hiccup-mode protection supports automatic recovery when the fault is removed.
- Internal thermal protection: Protects the power supply against excessive operating temperatures.
- Overvoltage protection: Incorporates protective circuitry against specified voltage disturbances.
- 35 mm DIN rail mounting: Facilitates installation in standard electrical control enclosures.
- IP20 enclosure: Suitable for mounting within appropriately protected indoor electrical equipment.
Key Features
- Finder Series 78 switch mode power supply.
- Type 78.12 compact DIN rail configuration.
- LED driver variant for constant-voltage lighting applications.
- Single regulated DC output.
- 12 V DC nominal output voltage.
- 1 A rated output current.
- 12 W maximum continuous output power.
- 110–240 V AC nominal input supply.
- 220 V DC nominal input compatibility.
- 50/60 Hz AC input frequency.
- Switch mode flyback conversion topology.
- Electronic short-circuit protection with automatic recovery.
- Internal thermal protection with output shutdown.
- Overvoltage protection.
- Low standby power absorption.
- 17.5 mm modular width.
- 35 mm DIN rail mounting.
- Screw terminal connections.
- IP20 degree of protection.
- Compact construction for lighting and electrical control cabinets.
Technical Specifications
- Manufacturer: Finder
- Series: 78
- Type: 78.12
- Manufacturer part number: 78.12.1.230.1202
- Product category: LED Drivers and Switch Mode Power Supplies
- Product type: Constant-voltage LED driver power supply
- Power conversion technology: Switch mode AC/DC
- Number of outputs: 1
- Nominal output voltage: 12 V DC
- Rated output current: 1 A
- Maximum output power: 12 W
- Short-duration peak output current: Up to 2 A for 3 ms
- Output characteristic: Constant voltage
- Nominal AC input voltage: 110–240 V AC
- Nominal DC input voltage: 220 V DC
- AC input frequency: 50/60 Hz
- Power conversion topology: Flyback
- Short-circuit protection: Hiccup mode with automatic recovery
- Thermal protection: Internal protection with output shutdown
- Overvoltage protection: Integrated protective circuitry
- Operating ambient temperature: −20 to +40 °C
- Degree of protection: IP20
- Mounting method: 35 mm DIN rail, EN 60715
- Housing width: 17.5 mm
- Housing height: 88.8 mm
- Housing depth: 60.8 mm
- Modular width: 1 module
- Electrical connections: Screw terminals
- Terminal tightening torque: 0.8 Nm
- Typical installation: Indoor electrical enclosures and lighting control panels
Reliable 12 V DC Power for Constant-Voltage LED Lighting
The Finder 78.12.1.230.1202 is specifically configured as a 12 V DC constant-voltage LED driver. It converts the incoming AC or DC supply into a regulated low-voltage output suitable for LED products designed to operate from a 12 V DC supply.
With a maximum output of 12 W and a rated current of 1 A, the power supply is suitable for compact LED lighting installations, provided the combined connected load remains within its rated capacity.
Its constant-voltage design is intended for LED equipment with appropriate internal current regulation or current-limiting components. It is not a substitute for a constant-current LED driver where the LED manufacturer specifies a regulated output current rather than a fixed voltage.
For continuous operation, the connected load should be selected with suitable allowance for operating conditions, startup behaviour and the LED manufacturer's requirements. The specified short-duration peak current of up to 2 A for 3 ms must not be interpreted as a continuous output rating.
Space-Saving DIN Rail Installation
One of the main advantages of the Finder 78.12.1.230.1202 is its compact 17.5 mm-wide enclosure. The power supply occupies a single modular position on a standard 35 mm DIN rail, allowing it to be integrated into distribution boards, lighting control panels and industrial electrical cabinets.
The housing measures approximately 88.8 × 17.5 × 60.8 mm (height × width × depth), making it suitable for applications where space is limited and a conventional enclosed power supply would be less convenient.
Screw terminal connections support straightforward wiring of the input supply and low-voltage output. Installers should follow the manufacturer's terminal specifications, wiring requirements and recommended mounting arrangements.
The IP20 protection rating means the device should be installed in a suitable enclosure that provides the environmental and access protection required for the application.
Integrated Protection for Dependable Operation
The Finder 78.12.1.230.1202 incorporates electronic protection functions intended to improve operational reliability in appropriately designed installations.
Short-circuit protection uses a hiccup-mode response, reducing or interrupting the output during a fault and allowing automatic recovery when the short circuit is removed. This helps protect the power supply against sustained overload conditions.
Internal thermal protection can shut down the output if excessive operating temperatures are detected. Correct ventilation, enclosure design and ambient temperature control remain important to ensure dependable operation.
The supply also incorporates overvoltage protection and uses switch mode conversion technology to provide compact and efficient electrical power conversion.
Protective functions do not eliminate the need for appropriate upstream circuit protection, correct wiring, suitable load selection and compliance with applicable electrical installation requirements.
Typical Applications
- 12 V DC constant-voltage LED lighting systems.
- Compatible LED strip lighting installations.
- Low-power LED cabinet and display lighting.
- Architectural and decorative LED lighting.
- Electrical distribution boards.
- Lighting automation and control panels.
- Commercial and industrial lighting assemblies.
- Building automation equipment requiring a compatible 12 V DC supply.
- Low-voltage electronic control circuits within the rated power limit.
- OEM lighting equipment and electrical assemblies.
- Compact DIN rail installations requiring regulated 12 V DC power.
