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The Mean Well DRDN20-24 is a DIN rail type redundancy module that enhances the reliability of power supply systems. It supports both N+1 and 1+1 redundancy configurations, allowing for increased system uptime and stability.
This module features two DC input channels and a single output channel, capable of handling a maximum output current of 20A. It is designed for mounting on a TS35 standard DIN rail and requires specific ventilation clearances (5mm left/right, 40mm above, 20mm below) to prevent overheating. The unit must be mounted vertically with input terminals at the bottom.
Installation involves using copper wire rated for at least 80°C, with recommended wire strapping lengths of 5mm. Torque settings for terminals are specified for secure connections. The DRDN20-24 includes a DC OK signal with a relay contact for remote status monitoring, providing an additional layer of system oversight.
Typical applications include 1+1 redundancy, where one additional PSU is used as a backup, or 1+N redundancy, employing multiple PSUs to increase overall reliability. It can also be used in single-unit configurations to reduce stress on MOSFETs and enhance longevity.
The input voltage range for the DRDN20-24 is 19-29 VDC for both input channels.
The maximum output current for the DRDN20-24 is 20A.
The DRDN20-24 is designed for DIN rail mounting.
Yes, it has a DC OK signal with a relay contact for remote status monitoring.
Recommended ventilation clearances are 5mm left and right, 40mm above, and 20mm below the unit.