ZBM20 Series
https://product.tdk.com/en/power/zbm
www.emea.lambda.tdk.com/zbm
12V, 15V and 24V 20A Buffer (Hold-Up) Modules
The ZBM20 20A buffer modules are ideal for providing short term hold-up or peak power for loads powered by 12V, 15V or 24Vdc output AC-DC power
supplies. During normal operation, energy is stored in the ZBM20’s electrolytic capacitors. When the AC power is interrupted for a short period of time,
ꢀ theꢀZBM20ꢀcontinuesꢀtoꢀpowerꢀtheꢀload,ꢀallowingꢀequipmentꢀtoꢀshutdownꢀinꢀaꢀsafeꢀandꢀcontrolledꢀmanner.ꢀꢀTheꢀZBM20ꢀcanꢀbeꢀsetꢀtoꢀfixedꢀorꢀvariableꢀbufferꢀꢀ
ꢀ mode.ꢀInꢀfixedꢀmodeꢀitꢀwillꢀprovideꢀpowerꢀwhenꢀtheꢀinputꢀvoltageꢀdropsꢀtoꢀbelowꢀaꢀpresetꢀlevel,ꢀinꢀvariableꢀmodeꢀ(24Vꢀmodelꢀonly)ꢀwhenꢀtheꢀinputꢀdecreasesꢀꢀ
by 1V. Multiple buffer modules can be paralleled for additional hold-up time. Product status can be accessed remotely via a DC OK relay. The output
voltage can also be inhibited to avoid an unsafe discharge of the stored energy.
Features
Benefits
•ꢀProvidesꢀ380msꢀAdditionalꢀHold-UpꢀTimeꢀatꢀMaxꢀBufferꢀPower
• Utilizes Electrolytic Capacitors to Store Energy
• Five Year Warranty
• Avoids Loss of Data During AC Power Interruptions
• No Batteries to Service or Maintain
• Lower Cost of Ownership
• Parallel Capable
•ꢀHold-UpꢀTimeꢀCanꢀBeꢀExtended
• Avoids Unsafe Discharge of Stored Energy
• Output Remote On/Off Function
Model Selector
Output Voltageꢀ
FixedꢀModeꢀ
(V) (1)
OutputꢀVoltageꢀ
DynamicꢀModeꢀ
Maximumꢀ
Currentꢀ
(A)
Averageꢀ
BufferꢀPowerꢀ
(W)
Modelꢀ
(V) (1)
ZBM20-12
ZBM20-15
ZBM20-24
11
13.8
22.4
-
-
20
20
20
220
276
448
Vin-1
1
ZBM20 Series