ATS-250A Automatic Transfer Switch – 250A, 4-Pole, SKT1 Series

ATS-250A Automatic Transfer Switch – 250A, 4-Pole (SKT1 Series)

Keep your power supply running without interruption.

The ATS-250A Automatic Transfer Switch ensures seamless switching between your main power (PEA) and standby generator (GEN), delivering reliable protection for industrial, commercial, and residential applications.

Key Features

• 250A Rated Capacity – Handles heavy-duty power requirements with ease.
• 4-Pole Design – Full isolation between sources for maximum safety.
• Automatic & Manual Modes – Choose between fully automated changeover or manual control.
• LED Status Indicators – Instantly see which power source is active and whether the load is connected.
• Rapid Switching Time – Changeover in ≤0.6 seconds to minimize downtime.
• Heavy-Duty Enclosure – Durable steel cabinet with lockable door for added security.
• Pre-Wired & Ready to Install – Supplied with wiring harness, cable glands, and installation instructions.

Technical Specifications

• Model: SKT1 Series ATS-250A
• Rated Current: 250A
• Rated Operational Voltage: AC400V
• Rated Insulation Voltage: 1000V
• Rated Impulse Voltage: 12kV
• Utilization Category: AC-33A (Suitable for mixed resistive/inductive loads, including motor loads)
• Control Voltage: AC220V
• Fuse Size: Main power control fuse F1 – 3A / Standby power control fuse F2 – 3A
• Switching Time: ≤0.6s
• Electrical Life: ≥3,000 cycles
• Mechanical Life: ≥8,000 cycles
• Operating Temperature: -20°C to +75°C

Applications

•  power systems for factories, warehouses, and workshops
• Data centers & telecoms requiring uninterrupted supply
• Large residential and commercial buildings
• Agricultural and farm equipment with standby power

Package Includes

• ATS-250A Automatic Transfer Switch unit
• Pre-wired harness
• Cable glands (4 pcs)
• User manual with wiring diagrams & troubleshooting guide
• Mounting hardware