DBUF/DUPS Series
DBUF 20A/40A DIN Rail Buffer Module DUPS 20A/40A DIN Rail Uninterruptible DC-UPS Module
DBUF20
DBUF40
DUPS20
DUPS40
DBUF Spec
DUPS Spec
■ DBUF Features
■ DUPS Features ·Uninterruptible DC-UPS controller ·Parallel connection to DC BUS （Power supply+DC-UPS Module+Batteries+Load） ·Suitable for 24V system，up to 40A ·2A Battery charging current ·Allows 4AH~135AH lead-acid various battery capacities ·Complete diagnostic and monitoring for DC BUS OK, battery discharge, battery fail ·Protections: Battery Reverse Polarity / Short Circuit(By internal fuse) /Battery Discharge / Over Discharge Current
·Buffering with electrolytic capacitors instead of lead acid batteries ·Buffering time: 350ms@20A; 250ms@40A ·Suitable for 24 VDC systems ·Buffer mode selectable by switch: -Fixed mode at 22VDC -Dynamic mode for Vin-1VDC ·Support parallel connection to extend buffering time ·-25~+75℃ wide operating temperature ·LED indicator for signal status ·3 years warranty
·Cooling by free air convection ·LED indicator for signal status ·3 years warranty
■ Models DC Operating Voltage Range Model No.
DBUF20-24
DBUF40-24
22~29VDC
22~29VDC
350ms@20A
250ms@40A
Buffer Time
700ms@10A
500ms@20A
45s@0.1A
42s@0.1A
Dimension (mm)
63x125.2x114.9
63x125.2x114.9
Model No.
DUPS20
DUPS40
DC BUS Voltage DC BUS Current Dimension (mm)
24~29VDC
24~29VDC
20A
40A
40x125.2x113.5
63x125.2x113.5
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