Automatic Transfer Switch ATS 220 (4P 400V)

⭐ Key Features

•Automatic & Manual Dual Mode: Switch seamlessly between city power (Grid, marked "Ⅱ") and backup generator (marked "Ⅰ") with our intelligent ATS transfer switch. Features both automatic and manual operation modes with clear indicator lights for real-time status monitoring. When utility power fails, the automatic transfer switch instantly transfers load to the backup source; when grid power restores, it automatically switches back—no manual intervention required

•Reliable Performance: Built-in over-voltage and under-voltage protection safeguards your connected equipment from unstable power supply. Unlike basic transfer switches, this ATS monitors voltage levels continuously and prevents damage from power surges or brownouts. Note: This unit provides voltage protection but does NOT include overload or short-circuit protection—please ensure proper circuit breakers are installed upstream

•Durable Flame-Retardant Nylon Construction: Engineered with high-grade flame-retardant nylon material for enhanced safety and durability. The rugged housing resists impact and heat, ensuring long-term reliability in residential, commercial, or industrial environments. Compact design saves installation space while maintaining robust performance

•Versatile Applications for Every Setup: Choose the right model for your power configuration: 2P 220V – Ideal for single-phase residential applications, home backup generators, and small offices. 4P 220V – Perfect for three-phase systems with 220V line voltage, suitable for larger homes, workshops, and light commercial use. 4P 400V – Designed for three-phase 400V industrial and commercial applications, including factories, data centers, and large commercial buildings.

•Easy Installation & What to Know: Clear terminal markings ("Ⅱ" for city power/grid, "Ⅰ" for backup/generator) simplify wiring and reduce installation errors. Compatible with most generator sets and utility power systems. Professional installation recommended to ensure proper configuration and compliance with local electrical codes. Please verify your system voltage and phase requirements before purchasing

🛠️ Specifications

• Brand : Pjerjzn
• Size : 4P 400V
• Included components : Automatic Transfer Switch
• Number of items : 1
• Package quantity : 1
• Type : CIRCUIT_BREAKER
• Package dimensions : H: 3.2 / L: 4.6 / W: 4.5 (Weight: 1.34)