Overview
STS 4000 (50 – 1250 A) Three Phase 4-Pole Static Transfer Switch
Deltron STS, allows instantaneous transfer of power sources to the load. If one power source fails, the STS switches to the back-up power source so fast that the load never recognizes the transfer made.
STS 3000-4000 3 phase, 3&4 pole static transfer switch transfers uninterruptedly critical loads to either of two independent AC power lines. The system monitors two AC inputs. If any of them goes out of the specified tolerance, it transfers the critical load to the other. By increasing the energy quality of the systems used with STS 3000-4000, while reducing the effects of interference and short interruptions, a backup power system is gained.
Neutral Switching
4-pole design switches the three phases and the neutral for full isolation between sources.
Very Fast Uninterrupted Transfer
Below 4 ms for synchronous sources and below 10 ms for non-synchronous sources.
Chassis Type Option
Available as a chassis-type building block for power distribution systems.
Features
Characteristics
- Increased power quality
- Increase noise reduction
- Power blackout protection
- Power redundancy
- Automatic static switching
- Remote monitoring input power sources
- Easy static and mechanical transfer to input sources
- Remote management the power events
- Power event logging
- Output current capability up to 1000% for short time
- 19” Rack cabinet
- Hot swap option
- Manufactured according to EC Directive: EN62310
- 2 years warranty
General Specifications
- Full digital control with microprocessor controlled structure
- 2 AC inputs with 3 phase switching
- Easy installation and maintenance
- Compact design
- Wide input voltage range
- "Break Before Make" type transfer
- Very fast uninterrupted transfer even in case of any failure (4 ms for synchronised sources)
- Selectable preferred source
- Fuse-free construction with a robust, high reliability SCR
- Digitally controlled system set points
- Programmable synchronized and unsynchronized transfers
- Convenient and multifunctional front panel and diagnostic codes
- Transfer inhibit system over a certain current value
- Overload, over temperature and short circuit protections
- Convenience during maintenance and repair with Isolated Maintenance Bypass
- Remote monitoring of energy resources
- TCP/IP, SNMP, MODBUS and RS232 infrastructure for communication
- Dry-contact interface
- Internal cooling fans
- Optional external AC power supply socket outlet
- Optional SNMP adaptor
Technical specifications
STS 4000 (50 – 1250 A) Three Phase 4-Pole Static Transfer Switch – technical data
| Model | STS4050 | STS4100 | STS4150 | STS4200 | STS4250 | STS4300 | STS4400 | STS4600 | STS40800 | STS41000 | STS41250 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal current | 50 A | 100 A | 150 A | 200 A | 250 A | 300 A | 400 A | 600 A | 800 A | 1000 A | 1250 A |
| Electrical | |||||||||||
| Input voltage (Ph-Ph) | 380/400/415 VAC 3P + N + G | ||||||||||
| Input voltage tolerance | 180 – 264 VAC (Ph-N) | ||||||||||
| Input frequency | 50 Hz / 60 Hz | ||||||||||
| Input frequency range | 48 – 65 Hz (upper and lower limits adjustable) | ||||||||||
| Efficiency (at full load) | Up to 99.5% | ||||||||||
| Input voltage THD | < 10% | ||||||||||
| Transfer type | "Break before make" | ||||||||||
| Transfer methods available | Automatic / manual / remote | ||||||||||
| Transfer control | Synchron; with adjustable delay (non synchron); zero current (non synchron) | ||||||||||
| Transfer time | < 4 msn for synchronous sources; < 10 msn for non-synchronous sources | ||||||||||
| Switching type | 3-pole: 3-phase switching / 4-pole: 3-phase switching + neutral switching | ||||||||||
| Output current crest factor | 3:1 | ||||||||||
| Admissible overload | 0% – 100% continuous; 101% – 150% 1 min; 151% – 200% 10 seconds; > 200% 250 msec | ||||||||||
| Protections | Output overload and short circuit protection, overtemperature protection, backfeed protection, SCR fault protection | ||||||||||
| LCD panel and mimic | Standard | ||||||||||
| Communication | RS232 standard, RS485 optional, SNMP optional | ||||||||||
| TCP/IP connection | Optional | ||||||||||
| Dry contacts | 4 programmable relay outputs | ||||||||||
| Two serial ports | Optional | ||||||||||
| Temperature sensor | Standard for internal cabinet temperature | ||||||||||
| Environmental | |||||||||||
| Max. installation altitude | 1000 m at nominal current rate (−1% derate 100 m above 1000 m) | ||||||||||
| Cooling | Forced cooling (redundant fans) | ||||||||||
| Operating temperature | 0 °C – 40 °C | ||||||||||
| Storage temperature | −10 °C – +50 °C | ||||||||||
| Relative humidity | 90% max. (non condensing) | ||||||||||
| Protection degree | IP20 | ||||||||||
| Standards | EN 62310-1, EN 62310-2 | ||||||||||
| Acoustic noise | < 52 dBA | < 52 dBA | < 52 dBA | < 55 dBA | < 55 dBA | < 55 dBA | < 55 dBA | < 60 dBA | < 65 dBA | < 65 dBA | < 65 dBA |
| Physical | |||||||||||
| Net weight STS4000 (kg) | 160 | 175 | 190 | 205 (90) | 235 (95) | 240 (100) | 255 (110) | 375 | 560 | 615 | 660 |
| Dimensions H × W × D (mm) | 1500 × 685 × 540 | 1500 × 685 × 540 | 1500 × 685 × 540 | 1770 × 685 × 590 (chassis type 760 × 600 × 545) | 1770 × 685 × 590 (chassis type 760 × 600 × 545) | 1770 × 685 × 590 (chassis type 760 × 600 × 545) | 1770 × 685 × 590 (chassis type 760 × 600 × 545) | 1905 × 915 × 735 | 1905 × 1250 × 850 | 1905 × 1250 × 850 | 1905 × 1250 × 850 |
* Weights and dimensions in parenthesis belong to Deltron chassis-type STSs.
Downloads
Datasheets & manuals
Official Deltron documents for STS 4000 (50 – 1250 A) Three Phase 4-Pole Static Transfer Switch. All files are PDF.
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