S8T-DCBU-01

DC Backup Block for S8TS

S8T-DCBU-01

DC Backup Block for S8TS Prevents 24-VDC Outages Due to Power Interruptions or Failures

* Information in this page is a reference that you created on the basis of information in the product catalog before the end of production, may be different from the current situation, such as goods for / supported standards options / price / features of the product. Before using, please check the compatibility and safety system.

last update: November 24, 2020

Model				S8T-DCBU-01
Input		*Voltage 1**		24 to 28 VDC
Output *2	Normal operation	Voltage		24 VDC *3
	Normal operation	*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
		Min. output current *6	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)
		Backup time (reference value) *7	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
	*EMI 4**	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
		cUL:		CSA C22.2 No.107.1 (Class 2: Per No.223) *11
		EN:		EN62477-1
	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: November 24, 2020

Product Category

Power Supplies / In Addition
- Power Supplies
  - Discontinued
    - S8T-DCBU-01

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