Why Choose the Finder 78.50.1.230.1202 12 V DC 50 W DIN Rail Power Supply?
The Finder 78.50.1.230.1202 is a compact, high-efficiency 12 V DC switch mode power supply designed to provide reliable, regulated DC power for industrial automation, electrical control panels and commercial electrical installations. Part of the Finder 78 Series, this DIN rail-mounted power supply converts a suitable AC or DC input into a stable low-voltage output for compatible electrical and electronic equipment.
Featuring a 50 W rated output power, a 12 V DC nominal output and a 4.2 A nominal output current, the Finder 78.50.1.230.1202 provides an efficient power source for control circuits, electronic modules, sensors and other compatible 12 V DC devices.
The power supply accepts a nominal 110–240 V AC input or 220 V DC input, providing installation flexibility across different electrical systems. Its adjustable output voltage, high conversion efficiency and integrated electronic protection features make it suitable for continuous operation in properly designed control cabinets.
With a compact 70 mm-wide modular housing, 35 mm DIN rail mounting and screw terminal connections, the Finder 78.50.1.230.1202 offers a practical solution for panel builders, electrical installers and industrial automation engineers.
Key Advantages
- 50 W output power provides a dependable supply for compatible 12 V DC equipment.
- 12 V DC nominal output supports a wide range of low-voltage control and electronic applications.
- 4.2 A nominal output current provides useful capacity for industrial control circuits.
- Adjustable 12–14 V DC output allows the voltage to be configured for suitable applications.
- 110–240 V AC nominal input accommodates common electrical supply systems.
- 220 V DC nominal input capability provides additional installation flexibility.
- High-efficiency switch mode technology helps reduce energy losses and heat generation.
- Low standby consumption supports energy-conscious electrical system design.
- Integrated short-circuit protection helps protect the power supply during output faults.
- Overload and thermal protection support reliable operation under suitable installation conditions.
- 35 mm DIN rail mounting enables convenient installation inside electrical enclosures.
- Compact 70 mm housing width helps conserve valuable control panel space.
- Screw terminal connections provide secure wiring for power input and DC output circuits.
- Suitable for compatible battery charging and SELV applications when installed in accordance with manufacturer guidance.
Key Features
- Finder 78 Series Type 78.50 switch mode power supply.
- Single regulated DC output.
- 50 W rated output power.
- 12 V DC nominal output voltage.
- 4.2 A nominal output current.
- Adjustable output voltage from 12–14 V DC.
- 110–240 V AC nominal input voltage.
- 220 V DC nominal input voltage.
- 50/60 Hz AC input compatibility.
- High conversion efficiency of up to approximately 91% for the Type 78.50 range.
- Low standby power consumption below 0.3 W for the Type 78.50 range.
- Integrated output short-circuit protection.
- Electronic overload protection.
- Internal thermal protection.
- Regulated DC output for compatible electronic loads.
- Suitable for certain battery charging applications.
- Suitable for SELV applications subject to correct system design.
- 35 mm DIN rail mounting according to EN 60715.
- 70 mm-wide modular housing.
- IP20 protection rating.
- Screw terminal electrical connections.
- RoHS-compliant construction.
Technical Specifications
- Manufacturer: Finder
- Series: 78 Series
- Type: 78.50
- Model: 78.50.1.230.1202
- Product type: Switch mode power supply (SMPS)
- Power supply technology: AC/DC switch mode conversion
- Number of outputs: 1
- Nominal output voltage: 12 V DC
- Output voltage adjustment range: 12–14 V DC
- Nominal output current: 4.2 A
- Maximum output current: 4.6 A, subject to operating conditions
- Rated output power: 50 W
- Nominal AC input voltage: 110–240 V AC
- Nominal DC input voltage: 220 V DC
- AC input frequency: 50/60 Hz
- Output regulation: Stabilised DC output
- Efficiency: Up to approximately 91% for the Type 78.50 range
- Standby power consumption: Below 0.3 W for the Type 78.50 range
- Short-circuit protection: Integrated
- Overload protection: Integrated
- Thermal protection: Integrated
- Mounting type: DIN rail
- DIN rail size: 35 mm
- DIN rail standard: EN 60715
- Connection type: Screw terminals
- Protection rating: IP20
- Housing width: 70 mm
- Modular width: 4 modules
- Operating temperature: −20 to +70 °C, subject to derating
- Country of origin: Italy
- Compliance: RoHS compliant
- EAN: 8012823444918
How the Finder 78.50 Switch Mode Power Supply Works
The Finder 78.50.1.230.1202 converts a suitable incoming AC or DC supply into a regulated 12 V DC output using electronic switch mode power conversion technology.
Unlike conventional linear power supplies, switch mode power supplies use high-frequency electronic switching to regulate the output efficiently. This approach reduces the size and weight of the power conversion components while helping minimise energy losses.
The Finder 78.50.1.230.1202 is designed to maintain a stable output voltage under normal operating conditions, allowing compatible 12 V DC devices to receive the power they require.
Its 4.2 A nominal output current and 50 W rated output power make it suitable for supplying electronic control equipment, sensors, low-voltage interface modules and other compatible electrical loads.
The output can be adjusted between 12 V DC and 14 V DC, allowing the supply voltage to be configured where the connected equipment and application permit.
Adjustable 12–14 V DC Output
A key feature of the Finder 78.50.1.230.1202 is its adjustable DC output voltage.
Although the power supply has a nominal output of 12 V DC, the voltage can be adjusted up to 14 V DC for suitable applications.
This adjustment capability can be useful where a slightly higher supply voltage is required to compensate for permitted cable voltage drops or to meet the operating requirements of compatible equipment.
The output voltage must always be set within the allowable input range of the connected devices. Increasing the voltage does not increase the power supply's rated output power, and the permissible output current must be considered alongside the selected voltage.
Integrated Electrical Protection Features
The Finder 78.50.1.230.1202 incorporates protective functions intended to support dependable operation in industrial and commercial electrical installations.
- Short-circuit protection: Helps protect the power supply if an output short circuit occurs.
- Overload protection: Helps prevent damage when the connected load exceeds the permitted operating conditions.
- Thermal protection: Provides protection against excessive internal operating temperatures.
- Regulated output: Helps maintain a consistent DC supply for compatible connected equipment.
These integrated functions support the reliability of the power supply but do not replace correctly rated upstream protection, suitable wiring or appropriate electrical installation practices.
Compact DIN Rail Installation
The Finder 78.50.1.230.1202 is designed for 35 mm DIN rail mounting in accordance with EN 60715, making it suitable for installation inside industrial electrical cabinets, distribution enclosures and automation control panels.
Its 70 mm-wide housing occupies four standard modular spaces, allowing it to be integrated alongside other DIN rail-mounted electrical components.
Screw terminal connections provide practical wiring for the incoming supply and regulated DC output.
Adequate ventilation and the manufacturer's recommended installation clearances should be maintained to support effective heat dissipation. The power supply should be installed within a suitable enclosure that provides the required environmental and electrical protection.
Typical Applications
- Industrial automation control panels.
- 12 V DC electronic control circuits.
- Low-voltage sensors and monitoring equipment.
- Compatible PLC interface and control modules.
- Industrial electronic instrumentation.
- Building automation and control systems.
- Electrical distribution and control cabinets.
- Compatible low-voltage relay and interface circuits.
- Commercial electrical installations.
- OEM machinery and equipment manufacturing.
- Compatible 12 V DC lighting control equipment.
- Low-voltage signalling and monitoring systems.
- Suitable battery charging applications, subject to manufacturer guidance.
- SELV power supply applications where system requirements are satisfied.
