STS 100-800 A
The STS is used as a transfer switch in 3-phase power grids and switches between two power sources
(manually or automatically). So it ensures power supply redundancy of connected devices from 100 to 800A. Break-Before-Make-switching prevents both
power sources being connected simultaneously
to the consumer.
Downloads
Characteristics
- Permanent monitoring of the power sources
- Break-Before-Make Switching
- Automatic switching back
- Manual switching possible
- 3- or 4-pole versions available
- Display: kVA, kW, CF, PF, A, V, Hz.
- Redundant cooling with monitored fans
- Front access to all power components
- Neutral with 2 x Inom
- Interfaces: RS 232, RS 485 (MODBUS protocol)
- Double maintenance bypass prevents cross connection
- 24 months warranty
Specifications
| STS | 100 A | 250 A | 400 A | 630 A | 800 A | |
|---|---|---|---|---|---|---|
| Power | Power | 230V AC L-N, 400 VAC ph-ph, other voltages on request | ||||
| Voltage window | ± 10% (up to ± 20% on request) | |||||
| Rated current | 100 A | 250 A | 400 A | 630 A | 800 A | |
| Rated frequency, Frequency range | 50/60Hz, ± 2Hz (up to ± 4Hz on request) | |||||
| Transfer phase angle | Standard 10° (5° ÷ 30° on request) | |||||
| Output | Output voltage | Same as Input | ||||
| Output frequency | Same as Input (50/60 Hz) | |||||
| Output current | Same as Input | |||||
| Maximum transfer time | 4-15 ms depending on the phase angle | |||||
| Communication | Display | Graphical LCD display, mimic LED panel and keyboard | ||||
| Connections | RS485 (Modbus RTU protocol), Standard: 4 SPDT relays, optional 6 additional SPDT relays | |||||
| Mechanic | Dimensions (H x W x D in mm) | 1475 x 820 x 835 | 1900 x 1220 x 860 | |||
| Weight in kg | 265 | 290 | 305 | 615 | 660 | |
| Input terminals | 3-phase hardwired with neutral | |||||
| Output terminals | 3-phase hardwired with neutral | |||||
| Regulations / standards | Standards | EN62040-1 | ||||
| EMC | EN62040-2 | |||||
| Standards | CE | |||||