

Borri STS 300 100 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 100** |
| Dimensions WxDxH (mm) | 820x835x1475 |
| Weight (kg) | 265 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top or bottom cable |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 250 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 250** |
| Dimensions WxDxH (mm) | 820x835x1475 |
| Weight (kg) | 290 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top or bottom cable |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 400 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 400 |
| Dimensions WxDxH (mm) | 811x980x2100 |
| Weight (kg) | 305 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top or bottom cable |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 630 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 630 |
| Dimensions WxDxH (mm) | 1211x980x2100 |
| Weight (kg) | 615 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top or bottom cable |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 800 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 800 |
| Dimensions WxDxH (mm) | 1211x980x2100 |
| Weight (kg) | 660 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top or bottom cable |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 1000 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 1000*** |
| Dimensions WxDxH (mm) | 2011x980x2100 |
| Weight (kg) | 700 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top cable or busbar |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 1250 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 1250 |
| Dimensions WxDxH (mm) | 2011x980x2100 |
| Weight (kg) | 820 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top cable or busbar |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 1600 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 1600 |
| Dimensions WxDxH (mm) | 2311x980x2100 |
| Weight (kg) | 1150 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top busbar |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 1800 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 1800 |
| Dimensions WxDxH (mm) | 2511x980x2100 |
| Weight (kg) | 1280 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top busbar |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.


Borri STS 300 2000 A
Centralised 3-phase static transfer switch for dual-path supplies. Monitors both sources continuously and manages inrush currents, so the transfer does not disturb the load.
- Disturbance-free load transfer between two sources
- 100–2000 A
- Customisation for critical environments
Technical data
| Rating (A) | 2000 |
| Dimensions WxDxH (mm) | 2511x980x2100 |
| Weight (kg) | 1400 |
Input
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Voltage tolerance | From ±1% to ±20%, adjustable (default ±10%) |
| Frequency and range | 50/60 Hz, from ±1% to ±10%, adjustable (default ±5%) |
| Source harmonic voltage content | Unlimited |
| Transfer phase angle | 5° to 30° |
Output
| Connection type | Hardwired 3w or 4w |
| Nominal voltage | 380/400/415 Vac 3-phase**** |
| Frequency | 50/60 Hz |
| Transfer time | ≤4 ms |
| Transfer mode | Break before make |
| Load power factor | 1 to 0.3 |
| Maximum crest factor | 3:1 |
| THD current fedback from load | Unlimited |
| Overload capacity | 125% for 10 min, 150% for 1 min, 200% for 30 s, 1000% for 10 cycles, 2000% for 1 cycle |
| Efficiency (AC/AC) | >99% |
Connectivity and function extensions
| Front panel | Graphical LCD display, mimic LED panel and keyboard |
| Remote communication | Included: dry contact relay card, RS232 and RS485 serial ports, ModBus-RTU protocol. Optional: additional dry contact relay card, SNMP, ModBus over TCP/IP card; dual ModBus card |
| Optional function extensions | Thyristor protection fuses, isolation transformer, output distribution panels; other options on request |
System
| Protection degree | IP 20 (other options) |
| Colour | RAL 9005 (other options) |
| Installation layout | Wall, back to back and side by side installation allowed |
| Accessibility | Top busbar |
Environmental
| Operating temperature range | 0°C to +40°C |
| Storage temperature range | -10°C to +60°C |
| Altitude (AMSL) | < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m |
| Audible noise at 1 m (dBA) | <65 |
Standards and certifications
| Quality assurance, environment, health and safety | ISO 9001, ISO 14001, ISO 45001 |
| Safety | IEC/EN 62310-1 |
| EMC | IEC/EN 62310-2 |
| Breakers | IEC/EN 60947-3 |
| Transfer voltage limits | IEEE Standard 446 |
| Protection degree | IEC 60529 |
| Performance | IEC/EN 62310-3 |
| Marking | CE |
Source: Borri product page for STS 300.
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