Mean Well 24v 20A Din-Rail Buffer Module
Mean Well
- LED indicator
- DIN Rail Mounted
- Electrolytic Capacitors
The Mean Well DBUF20-24 buffer module is a supplementary device for regulated DC 24V power supplies, with maintenance free electrolytic capacitors (Read more)
PRODUCT DETAILS
The Mean Well DBUF20-24 buffer module is a supplementary device for regulated DC 24V power supplies. The buffer module utilizes maintenance free electrolytic capacitors to store energy thus eliminates the need of periodic replacement as compared to costlier batteries which also have shorter functional life span.
The DBUF20-24 comes with comprehensive protection features like over voltage over current and short circuit protections Buffer modules can be connected in parallel to increase the output ampacity or the hold up time.
Features:
- Buffering with electrolytic capacitors instead of lead acid batteries
- Type buffering time of 350ms @22Vdc/20A
- Buffer mode selectable by switch: Fixed mode for Vin-1Vdc, Dynamic mode for Vin-1Vdc
- LED indicator for signal status
- Supports parallel connection to extend buffering time
- Cooling by free air convection
- -25~+75°C wide operating temperature
- 3 years warranty
| CHARGING MODE |
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| DC NORMAL OPERATING VOLTAGE |
24Vdc |
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| CHARGING VOLTAGE |
23~30Vdc |
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| CHARGING CURRENT |
900m Max |
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| CURRENT CONSUMPTION AT
STANDBY |
100mA Max. |
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| CHARGING TI E |
15s Typ 25s Max |
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| BUFFER MODE |
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| DC NORMAL VOLTAGE |
2 V Vin 2 dc 1Vdc |
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| DC VOLTAGE RANGE |
22-2 Vdc |
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| OUTPUT CURRENT ax. (m ) |
20A |
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| BUFFER TIME |
Output
current |
20A |
10A |
| Typ. |
350ms |
700ms |
|
| Min. |
250ms |
500ms |
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| RIPPLE & NOISE (max.) |
200mVp-p |
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| PROTECTION |
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| OVER VOLTAGE |
31 37 5V only, shut down o p
voltage |
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| OVER LOAD |
105% 125% rated output power
at buffer mode Protection type Shut down o p voltage re power on to recover |
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| SHORT CIRCUIT |
Protection type Shut down o
p voltage re power on to recover |
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| TVS FOR SIGNALS (max.) |
35V |
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| REVERSE POLARITY PROTECTION |
By internal MOSFET no damage
recovers automatically after fault condition removed |
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| FUNCTION |
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| SELECTABLE BY SWITCH |
Fix 22Vdc (Default) -
Buffering starts if terminal voltage falls below 22Vdc Vin-1Vdc - Buffering starts if terminal voltage is decreased by > 1Vdc |
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| CONTROL |
Inhibit (I) +Vs - V(I) 6Vdc Buffer module ON Vs - V(I) 10Vdc Buffer module OFF 35Vdc /4mA Max. |
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| SIGNALS |
Ready (R) Charged ready: V(R)>+Vs - 2Vdc; Unready: V(R)<1Vdc 35Vdc /10mA Max. Buffering (B) Buffering: V(B)>+Vs - 2Vdc; Other mode: V(B)<1Vdc 35Vdc /10mA Max Supply Voltage(+Vs) 10 35Vdc /10mA(Connected to +V or external voltage) |
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| LED STATUS DISPLAY |
ON - Ready OFF - Discharged Flashing 1Hz - Charging 10Hz - Buffering |
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| PARALLEL CONNECTION |
Refer to Typical Application
Notes |
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| ENVIRONMENT |
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| WORKING TEMP. |
-25 ~ +75°C | ||
| WORKING HUMIDITY |
5 ~ 95% RH
non-condensing |
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| STORAGE TEMP. |
-25 ~ +80°C |
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| SHOCK TEST |
IEC60068-2-27,30G (300m/S²)
for a duration of time per direction,2 times in total |
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| TEMP. COEFFICIENT |
± 0.03%/°C (0 ~
75°C) |
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| VIBRATION |
Component: 10 ~ 500Hz, 2G
10min./1cycle, 60min. each along X, Y, Z axes; Mounting clip: Compliance to IEC60068-2-6 |
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| OPERATING ALTITUDE |
5000 meters /OVCⅡ |
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| SAFETY & EMC |
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| EMC EMISSION |
Parameter |
Standard |
Test Level /
Note |
| Conducted |
EN55032 |
Class B |
|
| Class B |
EN55032 |
Class B |
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| Voltage Flicker |
- | - | |
| Harmonic Current |
- | - | |
| EMC IMMUNITY |
EN55035, EN61000-6-2 | ||
| Parameter |
Standard |
Test Level / Note |
|
| ESD |
EN61000-4-2 |
Level 4, 15KV air ; Level 3, 8KV contact; criteria A |
|
| Radiated |
EN61000-4-3 |
Level 3, 10V/m ; criteria A |
|
| EFT / Burst |
EN61000-4-4 |
Level 3, 2KV ; criteria A |
|
| Surge |
EN61000-4-5 |
Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG; criteria
A |
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| Conducted |
EN61000-4-6 |
Level 3, 10V ; criteria A |
|
| Magnetic Field |
EN61000-4-7 |
Level 4, 30A/m ; criteria A |
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| OTHERS |
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| MTBF |
164 84K hrs min.
MIL-HDBK-217F (25 . ℃) ; 513.46K hrs min. Telcordia TR/SR-332
(Bellcore) (25°) 1 97K hrs min. MIL-HDBK-217F (4 (4 07 0 ; 255.89K hrs min. Telcordia TR/SR-332 (Bellcore) 40℃ ) ) |
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| DIMENSIONS |
63*125.2*114.9mm (W*H*D) | ||
| PACKING |
1.062Kg;
12pcs/12.8Kg/0.74CUFT |
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| Videos |
|---|
| -- No videos available -- |
| Files |
|---|
| Mean Well DBUF20-24 Datasheet |
| Links* |
|---|
| Mean Well website |
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