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Mean Well 24v 20A Din-Rail Buffer Module
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Mean Well 24v 20A Din-Rail Buffer Module

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Mean Well logo 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)

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£147.19
£122.66 Ex VAT
28 reward points
Availability In stock
Delivery From FREE* Inc VAT
Product Code18258
ModelDBUF20-24
Order before 15:30 for delivery from Tuesday 5th March
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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
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SPECIFICATIONS
CHARGING MODE
DC NORMAL OPERATING VOLTAGE
24Vdc
CHARGING VOLTAGE
23~30Vdc
CHARGING CURRENT
900m Max
CURRENT CONSUMPTION AT STANDBY
100mA Max.
CHARGING TI E
15s Typ
25s Max
BUFFER MODE
DC NORMAL VOLTAGE
2 V Vin 2 dc 1Vdc
DC VOLTAGE RANGE
22-2 Vdc
OUTPUT CURRENT ax. (m )
20A
BUFFER TIME
Output current
20A
10A

Typ.
350ms
700ms

Min.
250ms
500ms
RIPPLE & NOISE (max.)
200mVp-p
PROTECTION
OVER VOLTAGE
31 37 5V only, shut down o p voltage
OVER LOAD
105% 125% rated output power at buffer mode
Protection type Shut down o p voltage re power on to recover
SHORT CIRCUIT
Protection type Shut down o p voltage re power on to recover
TVS FOR SIGNALS (max.)
35V
REVERSE POLARITY PROTECTION
By internal MOSFET no damage recovers automatically after fault condition removed
FUNCTION
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
CONTROL
Inhibit (I)
+Vs - V(I) 6Vdc Buffer module ON Vs - V(I) 10Vdc Buffer module OFF
35Vdc /4mA Max.
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)
LED STATUS DISPLAY
ON - Ready
OFF - Discharged

Flashing
1Hz - Charging
10Hz - Buffering
PARALLEL CONNECTION
Refer to Typical Application Notes
ENVIRONMENT
WORKING TEMP.
-25 ~ +75°C
WORKING HUMIDITY
5 ~ 95% RH non-condensing
STORAGE TEMP.
-25 ~ +80°C
SHOCK TEST
IEC60068-2-27,30G (300m/S²) for a duration of time per direction,2 times in total
TEMP. COEFFICIENT
± 0.03%/°C (0 ~ 75°C)
VIBRATION
Component: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes;
Mounting clip: Compliance to IEC60068-2-6
OPERATING ALTITUDE
5000 meters /OVCⅡ
SAFETY & EMC
EMC EMISSION
Parameter
Standard
Test Level / Note

Conducted
EN55032
Class B

Class B
EN55032
Class B

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

Conducted
EN61000-4-6
Level 3, 10V ; criteria A

Magnetic Field
EN61000-4-7
Level 4, 30A/m ; criteria A
OTHERS
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℃ ) )
DIMENSIONS
63*125.2*114.9mm (W*H*D)
PACKING
1.062Kg; 12pcs/12.8Kg/0.74CUFT
USEFUL FILES AND LINKS
Videos
-- No videos available --
Files
  Mean Well DBUF20-24 Datasheet
Links*
Mean Well website

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