The DUPS20 is a 24V/20A DIN rail DC-UPS controller designed to work with an external power supply and battery to provide backup power for 24V systems.

When the DC bus fails or is interrupted, the load is immediately transferred to the battery to ensure continuous system operation.

Key Specifications

• Nominal voltage: 24V DC

• Input range: 24–29V DC

• Output range: 21–29V DC

• Rated current: 20A

• Battery charging current: 2A

• Battery type: Lead-acid

• Battery capacity: 4Ah–135Ah

• Efficiency up to 98%

• Width: 40 mm

• IP20

• 3-year warranty

Protection Features

• Battery reverse polarity protection

• Short circuit protection

• Over discharge current protection

• Battery deep discharge cut-off

LED indicators for DC BUS OK, Battery Fail, and Battery Discharge.
Relay outputs: DC OK and Battery Fail (30VDC / 1A).