Switch Mode Power Supply ARF 240O (Open Frame)
Item number: 820330
Switch Mode Power Supply ARF 240O (Open Frame)
The ARF240 switch-mode power supply from ARCH was developed in accordance with the latest energy-saving regulations. It operates with an efficiency of up to 92%, offers high power density, and features an integrated power factor correction (PFC).
With its wide input range of 90 V to 264 V (AC), it can be used worldwide and delivers high performance even without active cooling. The ARF240 is available with output voltages of 12 V, 24 V, and 48 V.
The ARF240 operates in ambient temperatures from -30 °C to 80 °C and is certified for use in IT technology as well as audio/video applications.
Specifications
- Standard mounting design, mechanically compatible with other power supply manufacturers
- High output power up to 240 W without active cooling
- Very long service life through the use of high-quality components, such as Nippon Chemi-Con capacitors, ensuring high MTBF rate
- Protection features against overload, overvoltage, and short circuit with automatic recovery
- Worldwide usability with universal input of 90–264 V/AC / 47–63 Hz or 127–370 V/DC
- Extended operating temperature range from -30 °C to +80 °C with derating
- High efficiency thanks to modern circuit design
Properties
| Type: | PCB (Open Frame) |
|---|---|
| No. of Output Voltages: | 1 - Single |
| Application: | Industrial, IT Technology |
| Protection Class: | Protection Class I |
| Input Connector: | Plug Contact |
| Output Connector: | Plug-In Contact |
| For Region: | Europe, USA / Canada |
Downloads
External Power Supplies (Plug-in and Desktop Power Supplies)
Find practical answers to frequently asked questions about our external plug-in and desktop power supplies for industrial, medical, and IT applications. These articles support you with selecting the appropriate model, navigating country-specific mains plug options, and ensuring safe commissioning and troubleshooting.
Worauf muss ich bei der Auswahl eines passenden externen Netzteils achten?
For an external power supply unit (e.g. a desktop power supply) to operate safely, four criteria must match your device: voltage, current, polarity, and connector dimensions. You will usually find the required ratings on your device’s rating plate (typically under "Input") or on your previous power supply under "Output".
- Voltage (volts / V) – must match exactly: The output voltage of the power supply unit must match your device's input voltage precisely. Excessive voltage can permanently damage the electronics; insufficient voltage will cause the device not to start or to run unstably.
- Current (amperes / A) – may be higher: The power supply unit must supply at least the current required by the device. A higher ampere or wattage rating on the power supply poses no risk, as the device only draws the current it actually requires.
- Polarity – must match: Check the polarity symbol on the device. DC barrel connectors are usually centre-positive (positive pole inside). The replacement power supply must have identical polarity.
- Connector dimensions (DC barrel connector): The connector must fit securely and smoothly into the socket. Common dimensions specify the outer and inner diameters (e.g. 5.5 × 2.1 mm or 5.5 × 2.5 mm). If socket dimensions are non-standard or unclear, universal power supplies with an adapter set can help.