MEAN WELL DBUF20/40 DIN Rail Buffer Modules
MEAN WELL DBUF20/40 DIN Rail Buffer Modules can be used with DIN rail power supplies to provide short-term backup for the load. The units enter the buffer mode when the AC mains power is temporarily suspended or interrupted. The function offers stable 24VDC to extend the system operation time, and the buffer time depends on the load current. MEAN WELL DBUF20/40 DIN Rail Buffer Modules can sustain a 20A load for 350ms and a 40A load for 250ms.
The main feature is to provide a short buffer time through the internal electrolytic capacitor energy storage. The system does not have an external battery, meaning system maintenance costs are significantly reduced. DBUF20/40 modules come with comprehensive protection features such as overvoltage, overcurrent, and short-circuit protection and can be connected in parallel to increase the output ampacity or the hold-up time.
Features
- Buffering with electrolytic capacitors instead of batteries saves maintenance cost
- Suitable for 24VDC systems
- -25°C to +70°C operating temperature range
- Buffering time
- DBUF20: 350ms at 20A load
- DBUF40: 250ms at 40A load
- Buffer mode selectable by switch
- 22VDC (fixed, default setting)
- Vin-1VDC (dynamic mode)
- Supports parallel connection of multiple DBUF20/40 to extend buffering time
- LED indicator for operation status
- Short circuit, overload, overvoltage, reverse polarity (no damage) protections
- Class I installation available (includes grounding pin)
- Passes CB/UL/CUL/EAC//CE international safety approvals
- 63mm x 125.2mm x 114.9mm (W x H x D) dimensions
- 3-year warranty
Applications
- Industrial control system
- Semiconductor fabrication equipment
- Factory automation
- Electromechanical apparatus
Application Note
Can support parallel connection to extend hold up time (buffering time).
Related Products
MEAN WELL DIN-Rail Power Supplies
Wide range of AC-DC, DC-DC, specialty, and LED driver devices that adhere to industry standards.
Đã phát hành: 2020-01-13
| Đã cập nhật: 2024-07-12