S8TS DC Backup
Industrial use, modular power supply for multiple configurations
The S8TS is an expandable power supply standard units can easily be snapped
together in parallel to provide you with ultimate flexibility. Expandable up to 4 units, it can deliver a total power of 240W at 24VDC or a multi-output configuration.
• Improves system reliability by building up N+1 redundancy
• Standard unit 60 W at 24 VDC, 30 W at 12 VDC and 25 W at 5 VDC
• Battery back-up unit protects against power outage (see accessories)
• Buffer unit protects against power glitches and outage (see accessories)
• EMI Class B, UL Class 2, UL Class 1 division 2
Basic block Order code
Output current Screw terminal type Connector terminal type
With bus line connectors*1
Without bus line connectors*2
With bus line connectors*1 Without bus line connectors*2
24 V 2.5 A S8TS-06024-E1*3
S8TS-06024 S8TS-06024F-E1 S8TS-06024F
12 V 2.5 A S8TS-03012-E1 S8TS-03012 S8TS-03012F-E1 S8TS-03012F
5 V 5 A – S8TS-02505 – S8TS-02505F
*1 One S8T-BUS01 connector and one S8T-BUS02 connector are included as accessories.
*2 Bus line connectors can be ordered separately if necessary.
*3 Conforms to EMI class B with DC minus terminal ground.
Bus line connector
Type Number of connectors Order code
AC line + DC line bus
1 connector S8T-BUS01
(For parallel operation)
AC line bus (For series operation
1 connector S8T-BUS02
or isolated operation)
*1 One package contains 10 S8T-BUS01 connectors.
*2 One package contains 10 S8T-BUS02 connectors.
Item 5 V models 24/12 V models
Single operation Single operation Parallel operation
Efficiency 62% min. 24 V models: 75%, 12 V models: 70% min. Power factor 0.8 min. 24 V models: 0.9 min., 12 V models: 0.8 min. Input voltage 100 to 240 VAC, (85 to 264 VAC), single-phase
Voltage adjustment 5 V ±10% min. 24 V models: 22 to 28 V, 12 V models: 12 V ±10% min.
Ripple 2% (p-p) max. 2% (p-p) max. 2% (p-p) max. Input variation 0.5% max. – – Temperature influence 0.05%/°C max. (with rated input, 10 to 100% load)
Overcurrent protection 105 to 125% of rated load current, inverted L drop, automatic reset
Overvoltage protection yes yes yes
Output indicator yes (green) yes (green) yes (green) Weight 450 g max. 450 g max. 450 g max. Series operation yes yes yes
Parallel operation no yes yes
Size in mm (HxWxD) 120x43x120