The Schneider Electric WATSNA32/4 is a compact and reliable dual power automatic transfer switch (ATS) designed for three‑phase electrical systems. It provides automatic switching between two independent power sources — such as utility and generator — to maintain continuity of supply in industrial, commercial, and residential power installations.
Technical Specifications
General
Product Type: Dual Power Automatic Transfer Switch (ATS)
Model: WATSNA32/4
Poles: 4 P
Switch Type: Automatic/manual transfer for dual power sources
Electrical Ratings
Rated Operating Current: 32 A
Rated Operating Voltage: ~400 V AC (three‑phase), 50 Hz
Rated Insulation Voltage: Typically up to ~690 V AC
Rated Frequency: 50/60 Hz
Utilization Category: AC‑33B (inductive and motor loads)
Mechanical & Functional
Positions: 3 switching positions — Source A / Off / Source B (or equivalent)
Switching Mode: Automatic transfer on detection of power loss and return when restored
Control: Automatic logic with optional manual override
Phase Configuration: 4‑pole for three‑phase systems with neutral
Protection & Safety
Overcurrent Withstand: Designed to handle typical transient loads
Impulse Withstand Voltage: Protective design for electrical surges
Mechanical Durability: Robust mechanism for frequent switching operations
Mounting & Environment
Installation: Panel / enclosure mount
Ambient Conditions: Designed for standard industrial environments with appropriate enclosure protection
Compliance: Built to meet regional electrical safety standards for automatic transfer equipment
Typical Applications
✔ Emergency power systems (utility ↔ generator)
✔ Backup power routing for critical loads
✔ Industrial and commercial electrical distribution boards
✔ Standby power panels and UPS integration