OMRON S8T-DCBU-01 specification

last update: April 04, 2013

Model				S8T-DCBU-01
Input		Voltage *1		24 to 28 VDC
Output *2	Normal operation	Voltage		24 VDC *3
		Load variation influence *4		6% max.
	Backup operation	Voltage		21.0 to 27.4 VDC *5
		Min. output current *6	S82Y-BAT01	0.11 A
			S82Y-BAT02	0.17 A
		Backup time (reference value) *7	S82Y-BAT01	8 min/3.7 A (at 25°C, battery fully charged, start of battery service life)
			S82Y-BAT02	4 min/8.0 A (at 25°C, battery fully charged, start of battery service life)
Charg- ing	Method			Stable voltage/current charging method
	Charging voltage *8			27.4 V/26.2 V (typical)
	Max. charging current			0.35 A (typical)
	Overvoltage protection *8			Yes (30 V typical)
Addi- tional func- tions	Protection functions	Overdischarge protection *8		Yes (18.5 V typical)
		Overload protection *8		Yes (5.7 A/11.7 A typical)
		Battery misconnection protection *8		Yes
	Input function	Backup ON/OFF input *8		Yes
	Output functions	Output indicator		Yes (color: green)
		Battery status indicator *8		Yes (color: red)
		Battery status output *8		Yes (relay: 24 VDC, 0.1 A)
		Backup status indicator		Yes (color: red)
		Operation mode output		Yes (relay: 24 VDC, 0.1 A)
Other	Ambient operating temperature *4			Operating: Refer to the derating curve in Engineering Data. (with no condensation or icing) Storage: - 25 to 65°C
	Ambient humidity			Operating: 25% to 85%; Storage: 25% to 90%
	Dielectric strength *4 *9			3.0 kVAC for 1 minute (between all S8TS-06024[] AC inputs, and all S8T-DCBU-01 terminals/all S8TS-06024[] outputs; detection current: 20 mA) 2.0 kVAC for 1 minute (between all S8TS-06024[] AC inputs and PE terminal; detection current: 20 mA) 1.0 kVAC for 1 minute (between all S8T-DCBU-01 terminals/ all S8TS-06024[] outputs, and PE terminal; detection current: 20 mA)
	Insulation resistance *4			100 MΩ min. (between all S8T-DCBU-01 terminals and all S8TS-06024[] outputs, and between all S8TS-06024[] AC inputs and PE terminal) at 500 VDC
	Vibration resistance *4 *10			10 to 55 Hz, 0.375-mm single amplitude for 2 h each in X, Y, and Z directions
	Shock resistance *4 *10			150 m/s2 , 3 times each in ±X, ±Y, and ±Z directions
	EMI *4	Conducted Emission		Conforms to EN61204-3 EN55011 Class A and based on FCC Class A
		Radiated Emission		Conforms to EN61204-3 EN55011 Class A
	EMS *4			Conforms to EN61204-3 High severity levels
	Approved standards	UL:		UL508 (Listing: Class 2: Per UL1310) *11, UL60950-1
		cUL:		CSA C22.2 No. 14 (Class 2: Per No.223) *11
		cUR:		No. 60950-1
		EN/VDE		EN50178 (=VDE0160), EN60950-1 (=VDE0805 Teil 1)
	Size			120 × 120 × 43 mm
	Weight			350 g

*1. Refer to Output Voltage Adjustment for S8TS-06024[] on Catalog.
*2. The output specifications are defined at power output terminals.
*3. Specified by performance of S8TS-06024[] Basic Block.
*4. Specified by S8TS-06024[] connection.
*5. The output voltage will be 21.0 V (min.) when switching to backup operation.
*6. The life of the battery will greatly reduced when operating below the minimum output. Design the loadcircuit so that
       at least the minimum output is maintained.
*7. Refer to Backup Time (Reference Value) on Catalog.
*8. Refer to Functions on Catalog for details.
*9. Set the detection current to 20 mA × N, where N is the number of S8TS-06024[] Basic Blocks connected.
*10. Be sure to mount End Plates (PFP-M) on both ends of the Power Supply.
*11. To ensure Class 2, take one of following measures.
         Note that the number of S8TS-06024[] to be connected to the S8T-DCBU-01 shall be one.
       • Connect S8T-DCBU-01 to S82Y-TS01 having its fuse replaced with an UL-Listed and DC rated 32 VDC min./3 A
           max. one.
       • Connect an UL-Listed and DC rated 32 VDC min./2.5 A max. fuse at the location shown in Fig.1.

last update: April 04, 2013

OMRON S8T-DCBU-01 catalog

• Catalog
• Manual
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
S8T-DCBU-01 Data Sheet	- [2532KB]	Aug 03, 201620160803	S8T-DCBU-01 Data Sheet

OMRON S8T-DCBU-01 dimension

last update: July 01, 2016

DC Backup Block

S8T-DCBU-01

Bus Line Connector

S8T-BUS03

Battery Holder

S82Y-TS01

DIN Rail (Order Separately)

Mounting Rail (Material: Aluminum)

PFP-100N
PFP-50N

Mounting Rail (Material: Aluminum)

PFP-100N2

End Plate

PFP-M

last update: July 01, 2016

OMRON S8T-DCBU-01 lineup

last update: April 04, 2013

DC Backup Block *1

Input voltage	Output voltage	Output current	Model number
24 to 28 VDC	24 V	3.7 A/ 8 A *2	S8T-DCBU-01

*1. One S8T-BUS03 Connector is included as an accessory.
*2. The output current can be selected by a switch.

Bus Line Connector

Type	Number of Connectors	Model number
DC Bus Line Connector	1	S8T-BUS03
	10 *	S8T-BUS13

* One package contains 10 S8T-BUS03 Connectors.

Basic Block

Type		Output voltage/Output current	Model number
Screw terminal type	With Bus Line Connectors	24 V/ 2.5 A	S8TS-06024-E1
	Without Bus Line Connectors		S8TS-06024
Connector terminal type	With Bus Line Connectors		S8TS-06024F-E1
	Without Bus Line Connectors		S8TS-06024F

Note: Use S8T-DCBU-01 in a pair with the Block Power Supply Basic Block.

Battery Holder

Model number
S82Y-TS01

Note: Can be set two batteries.

Battery

Model number
S82Y-BAT01
S82Y-BAT02

Note: A set of two batteries.
          Designated battery varies on the number of multi-
          connected S8TS-06024[].
          Refer to “Number of Multi-Connected S8TS-06024[]
          and Designated Battery” on Catalog.

last update: April 04, 2013

• NO. S8T-DCBU-01
• TYPE:Power Supplies Related equipment Copyright Statement
• DATE:2021-06-07
• Associated products:
  S8V-NF Noise Filter (Single-phase 250 V 3 A / 6 A Type)/Features S8T-DCBU-02 Buffer Block/Features