48VDC 2.5A Redundant DIN Rail Power Supply | 120W | Internal ORing Diode | 90-264VAC Input | XCSF120DP
48VDC 2.5A Redundant DIN Rail Power Supply
The XCSF120DP is a compact 120W industrial DIN rail power supply designed for redundant 48VDC power systems where equipment availability and continuous operation are important. It provides regulated 48VDC power at 2.5A continuous output and includes a factory-installed internal ORing diode, simplifying the design of redundant power systems without requiring a separate external ORing diode.
With universal 90–264VAC input, adjustable 45–55VDC output, high temporary overload capability, DC OK monitoring, and comprehensive electrical protection, the XCSF120DP provides reliable power for critical industrial control, communication, automation, and monitoring applications.
What Does This Power Supply Do?
The XCSF120DP converts a wide range of AC input power from 90–264VAC into regulated 48VDC power capable of continuously supplying up to 2.5A at 45°C.
The output voltage can be adjusted from 45–55VDC, providing flexibility for equipment requiring a specific operating voltage or compensation for voltage drop in DC distribution wiring.
The XCSF120DP also accepts 100–345VDC input, with derating below 130VDC.
Most importantly, the XCSF120DP incorporates an internal ORing diode for redundant parallel operation. When properly configured with another compatible redundant power supply, failure of one supply does not necessarily interrupt 48VDC power to the critical load.
Why Use a Redundant 48VDC Power Supply?
A single power supply can represent a single point of failure in an industrial control or communication system.
If that power supply fails, connected 48VDC equipment may immediately shut down, potentially causing loss of communications, monitoring, control functions, or machine operation.
A properly designed redundant power system uses multiple power supplies so another supply can continue supporting the critical load if one power supply fails.
The XCSF120DP simplifies redundant system design by incorporating the ORing diode required for redundant operation directly into the power supply.
What Problem Does This Solve?
Unexpected loss of 48VDC power can cause:
• Loss of Industrial Communications
• Industrial Ethernet Network Shutdown
• Control System Shutdown
• Loss of Remote Monitoring
• Machine or Process Interruption
• Loss of Critical Electronic Equipment
• Production Downtime
The XCSF120DP provides a compact way to build redundancy directly into a 48VDC power system, reducing the risk that failure of a single power supply will interrupt critical equipment.
Key Features
• 120W Industrial DIN Rail Power Supply
• Regulated 48VDC Output
• 2.5A Continuous Output at 45°C
• Adjustable 45–55VDC Output
• Universal 90–264VAC Input
• 100–345VDC Input Capability with Derating Below 130VDC
• Internal ORing Diode for Redundant Parallel Operation
• Parallel Connection Possible
• 8A Overload Capability for More Than 30 Seconds
• 7.5A Short-Circuit Peak Current for 50ms
• DC OK Green LED Status Indicator
• DC OK Dry-Contact Alarm
• Short Circuit Protection
• Overload Protection
• Input and Output Overvoltage Protection
• Overtemperature Protection
• SELV Output
• 86% Efficiency at 120VAC / 90% at 230VAC
• Compact 40mm Wide Aluminum Housing
• Operating Temperature -20°C to +60°C with Derating Above 45°C
Applications
• Redundant 48VDC Power Systems
• Industrial Control Panels
• Industrial Communication Systems
• Industrial Ethernet Networks
• Factory Automation
• Process Control Systems
• Building Automation
• Machine Automation
• Remote Monitoring Systems
• OEM Machinery
• Industrial Instrumentation
• Critical 48VDC Control Systems
Commonly Used To Power
• Industrial Ethernet Switches
• Communication Gateways
• Remote I/O
• Industrial Controllers
• Network Equipment
• Instrumentation
• Monitoring Equipment
• Industrial Electronics
• 48VDC Control Equipment
• Other Critical 48VDC Loads
Why Choose the XCSF120DP?
The XCSF120DP combines 120W of regulated 48VDC power with built-in redundancy capability in a compact 40mm wide DIN rail package.
Its factory-installed internal ORing diode eliminates the need for a separate external ORing diode when configuring redundant power, helping reduce component count, wiring complexity, and panel space.
The XCSF120DP also provides high temporary overload capability, allowing it to support demanding startup and short-duration load conditions beyond its 2.5A continuous rating.
The integrated DC OK dry-contact alarm allows a PLC or monitoring system to detect a power supply problem even while another supply in the redundant system continues supporting the load.
Need More Power?
For applications requiring higher 48VDC output capacity, consider the XCSF240DP, which provides:
• 48VDC Output
• 5A Continuous Current
• 240W Output
• Internal ORing Diode
• Redundant Parallel Operation
For lower-power applications, the XCSF120DP provides the same integrated redundancy concept in a compact 120W / 2.5A package.
Why Buy From ASI?
• Stocked in Pennsylvania, USA
• Fast Shipping Available
• Technical Product Support
• Industrial Power Supply Specialists
• Redundant Power System Application Assistance
• Industrial Automation Specialists Since 1999