Automatic Transfer Switch ATS for Generator Dual Power Changeover Switch 400A
Electrical Switch

Automatic Transfer Switch ATS for Generator Dual Power Changeover Switch 400A

Elumotive Automatic Transfer Switch (ATS) provides fast, reliable dual-source changeover between mains supply and standby generator.

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Elumotive Automatic Transfer Switch (ATS) provides fast, reliable dual-source changeover between mains supply and standby generator. Purpose-built for 24/7 continuous duty in hospitals, data centres and industrial plants, our ATS achieves sub-100 ms transfer with fully mechanical interlock and remote monitoring.

Technical Specifications

Parameter Value
Rated current 63A / 100A / 160A / 250A / 400A / 630A / 800A / 1000A / 1250A / 1600A / 2000A / 2500A / 3200A
Rated voltage AC 230V / 400V (3P4W or 4P)
Number of poles 3P / 4P
Frequency 50 / 60 Hz
Rated insulation voltage (Ui) 800 V
Rated impulse withstand (Uimp) 8 kV
Transfer time < 100 ms (electrical); mechanical dwell adjustable 0–30 s
Utilisation category AC-33iB (motor + resistive mixed load)
Mechanical life ≥ 8000 operations
Electrical life ≥ 2000 operations at rated current
Short-circuit withstand (Icw) ≥ 25 kA / 1 s (frame dependent)
Control mode Automatic / Manual / Remote / Test
Communication Modbus RTU (optional), dry-contact status output
Interlock Mechanical + electrical double-interlock (guaranteed anti-parallel)
Auxiliary contacts 2 NO + 2 NC per source, additional configurable
Ambient temperature −25 °C to +70 °C
Ingress protection IP20 (standard); IP54 in enclosure
Standards IEC 60947-6-1, GB/T 14048.11
Certifications CE · CCC · ISO 9001

Typical Applications

  • Hospitals — operating theatres, ICU, imaging
  • Data centres and telecom base stations
  • Airports, railway stations, ports
  • Petrochemical, mining, offshore rigs
  • Commercial high-rise buildings
  • Industrial plants with backup gensets

Certifications & Standards

CE Mark · ISO 9001:2015 · CNAS · UDEM · IEC 61000 · IEEE Std 519 · GB/T 14549-93

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Contact our engineers for detailed technical drawings, custom voltage/current configurations, OEM branding options and competitive project pricing. All Elumotive products ship worldwide with full documentation.

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