Phoenix Contact Energy Storage 15A 1.2Ah 24V Buffer Module 1274520

This buffer module uses double-layer capacitor technology to bridge brief power interruptions and voltage dips in 24 V DC circuits. Unlike battery-based UPS units, it delivers over 1.2 Ah of effective capacity with a service life exceeding 20 years at 20 °C and requires no maintenance or replacement cells.

Highlights

• Maintenance-free energy storage based on supercapacitors
• 15 A input and output current for demanding DC loads
• DIN rail mounting with screw connections for fast installation
• Integrated electronic fuse protects the module and connected devices
• LED status indication for charge, discharge, and fault conditions

In daily use

The module buffers loads up to 15 A and provides 1.2 hours of backup at a 1 A load. It operates across a temperature range from -25 °C to 70 °C, making it suitable for control cabinets in industrial environments. Parallel operation is supported for applications that require higher capacity.

Full specifications

• Nominal input voltage: 24 V DC
• Nominal output voltage: 24 V DC
• Nominal capacity: 1.2 Ah
• Max. input current: 15 A
• Max. output current: 15 A
• Buffer time at 1 A load: 1.2 hours
• Connection method: Screw connection
• Mounting type: DIN rail mounting
• Operating temperature range: -25 °C to 70 °C
• Efficiency: > 99 %
• Service life: > 20 years at 20 °C
• Parallel operation: Yes
• Status indication: LED (charge, discharge, fault)

Final note

For engineers seeking a reliable, long-life alternative to battery-backed buffering in 24 V DC systems, this capacitor-based module offers predictable performance without the upkeep.