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Mean Well DBUF40-24 Buffer Module Power 24V 40A Supply - DIN Rail
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Mean Well DBUF40-24 Buffer Module Power 24V 40A Supply - DIN Rail
The DBUF40 is a Mean Well. power converter. with IEC62368-1, UL62368-1 approvals.
Key Features
- ✓ Protections: Short circuit / Over voltage / Reverse polarity
- ✓ Safety approvals: IEC62368-1,UL62368-1
- ✓ 3 years warranty
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BrandMean Well
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SeriesD-BUF
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No of Output1
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Standards MetCB,CE,EAC,UL
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Operating Temperature-25°C~75°C
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Warranty3 Year
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Length4.93 in
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Width4.52 in
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Height2.48 in
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Weight2.34 lb
::specification::
Frequently Asked Questions
What is the Mean Well DBUF40-24 used for?
The DBUF40-24 is a 24V DIN rail buffer module designed to provide short-term hold-up during brief DC power dips or interruptions. It uses electrolytic capacitors rather than lead acid batteries, making it suitable for industrial control panels and other 24V DC systems that need short buffering support.
How much buffering performance does the DBUF40-24 provide?
This model is rated for 40A output current and provides a typical buffering time of 250 ms at 22V DC and 40A. It is intended for short-duration ride-through support rather than long backup runtimes.
Does the DBUF40-24 use batteries?
No. The DBUF40-24 uses electrolytic capacitors for buffering instead of lead acid batteries. That makes it different from battery-based backup solutions and better suited to applications where compact short-term buffering is the goal.
Can the DBUF40-24 be used in harsh temperature environments?
Yes, this model has a wide operating temperature range of -25°C to +75°C, subject to the output derating curve. That range makes it suitable for many industrial environments where standard commercial-temperature devices may be too limited.
What input and voltage range does the DBUF40-24 support?
The DBUF40-24 is designed for 24V DC systems. Its listed charging voltage range is 23 to 30V DC, and overvoltage protection is specified at 31 to 37.5V with output shutdown protection.
Can buffering time be extended with this model?
Yes. The DBUF40-24 supports parallel connection to extend buffering time. This makes it useful where the standard hold-up performance is not sufficient and a longer short-duration buffer is needed.
What approvals and standards does the DBUF40-24 meet?
This model is approved to IEC62368-1 and UL62368-1 safety standards. It also lists EMC compliance to EN55032 Class B and EN61000-4-2, -3, -4, -5, -6, and -8.
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