Static Transfer Switch 200-800A, 480 Vac

Superior Reliability

• Redundant auxiliary power, control board, fan and optional output breaker prevent single points of failure
• Layered security and intelligent breaker interlock design prevents improper operation

Easy Management

• 10’’ color display with touchscreen graphical interface
• Analyzes power source and load data with pre-/post-event data capture. Supports 5000+ event log and waveform records for detailed analysis
• Features Modbus and inbuilt SNMP card for remote monitoring and control
• Provides email notifications for user-defined events
• Time-stamped history and event logs

Simple Maintenance

• IR scan window for easy thermal measurement
• Hot-swappable auxiliary power and control board for low MTTR
• Fully front access and compartmentalized electrical components ensure easy and safe access

1. Model
2. STS-200A / STS-400A /  STS-600A /  STS-800A

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4. Input
5. Nominal Voltage: 480 Vac, 3P4W+PE
6. Voltage Range: 432-528 Vac
7. Frequency Range: 45-65 Hz
8. Source Voltage Distortion: Up to 10% THD

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10. Output
11. Nominal Voltage: 480 Vac
12. Frequency: 50/60 ± 0.5 Hz
13. Transfer Time: < 4 ms
14. Overload Capability: 101-125%: 30 mins, 126-150%: 2 mins, 151-500%: 0.25 secs
15. Short Circuit Withstand Current: 65 kA
16. Current Crest Ratio: 3.5:1

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18. Efficiency
19. Online Mode: > 99%

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21. Communication Interface
22. Display: 10-inch color LCD touchscreen
23. Port: USB port x1, RS-485 port x1, Ethernet port x1, Input dry contact x4, Output dry contact x4
24. Protocol: SNMP, Modbus TCP, HTTP, HTTPS

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26. Physical
27. Dimensions (W x D x H):
    ● STS-200A: 610 x 760 x 2000 mm
    ● STS-400A: 965 x 815 x 2000 mm
    ● STS-600A: 965 x 815 x 2100 mm
    ● STS-800A: 1400 x 900 x 2000 mm
28. Net Weight:
    ● STS-200A: 365 kg
    ● STS-400A: 530 kg
    ● STS-600A: 630 kg
    ● STS-800A: 900 kg

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30. Environment
31. Operating Temperature: 0 to 40°C
32. Humidity: 0-95% (non-condensing)
33. Altitude: 0-1200 m
34. Storage Temperature: -40 to 80°C
35. Ingress Protection Level: IP20

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37. Conformance
38. Safety: UL 1008S
39. Surge Protection: ANSI C62.41 Cat A, B
40. Sustainability: RoHS, REACH

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42. All specifications are subject to change without prior notice.