Automatic Transfer Switch

An Automatic Transfer Switch (ATS) is an intelligent electrical device that continuously monitors two power sources—typically the utility grid and a standby generator. It automatically transfers the load to the backup source when the main supply fails or goes out of tolerance, and switches back once stable power returns. Installation includes commissioning and parameter configuration, after which the ATS operates fully autonomously to ensure seamless power continuity in critical systems.

WCQ2C Series (air-break ATS)

• Rated current range: 6 A–63 A
• Configurations: 1‑pole, 2‑pole, 3‑pole, 4‑pole
• System voltage: 400 V AC, 50 Hz
• Short‑circuit breaking capacity: 5 kA; connecting capacity: 7.5 kA
• Mechanical life: 3,000 cycles; electrical life: 1,500 cycles
• Max insulation voltage: 690 V AC, completion in ≤3 s transfer time

WCQ2G Series (moulded-case ATS)

• Rated current range: 16 A–630 A (frame sizes up to 2000 A)
• Configuration options: 1‑pole to 4‑pole
• System voltage: 400 V AC, 50 Hz
• Peak short‑circuit breaking capacity: up to 26 kA; short-time current withstand up to 90 kA RMS
• Insulation voltage up to 690 V; dielectric withstand 5–10 kV
• Make-break-make transfer time: 0.5–2 s; mechanical life up to 100,000 cycles for lower amps, and 3,000–5,500 cycles for higher frames

Westhomes ATS supports:

• Two-source setup: utility + generator or utility + utility
• Three-source setup: e.g., utility + dual generators or dual utility + generator
  These configurations are ideal for backed-up power systems in industrial settings

Yes. Especially the WCQ2G series is tailored for industrial and factory use, featuring:

• High current capacity (up to 2000 A) and robust short-circuit performance
• Extended mechanical endurance to handle frequent switching
• Manual/auto modes, interlocking, and remote-control compatibility for PLC or BMS integration
• Compact design for mounting in panels or enclosures within production, processing, and utility distribution systems

All ATS models meet IEC/EN 60947-6-1 and GB/T 14048.11 standards.
They offer insulation voltage up to 690 V, dielectric withstand from 5–10 kV, built-in interlocking, signaling, control functions, and optional communication ports, making them safe and compliant for complex industrial setups

• Available in 1P–4P configurations to match system requirements
• Can be configured for manual, automatic, or remote-controloperation
• Suitable for DIN-railor panel-mount installation
• Optional communication interfaces enable integration with PLC, telemetry, or smart factory systems

Yes. Westhomes offers tailored ATS solutions to meet specific factory, OEM, or project requirements, including:

• Custom current/frame ratings
• Specific mechanical life and performance targets for high-use applications
• Integration-ready options for remote monitoring, PLC control, and factory management systems
• Enhanced environmental protections (e.g., IP ratings or extended temperature ranges) upon request
• OEM branding, packaging, and documentation support for B2B deployment