4-Pole 100/160/250 Amp Automatic Transfer Switch

4-pole transfer switch covers 100A to 250A current specifications for standard 400V AC 50Hz power distribution systems, packed with flexible full-automatic, remote and emergency manual operation modes alongside core safety isolation features. Engineered with integrated electromechanical control and strict international standard certification, it delivers fast dual-power switching and strong short-circuit resistance, ideal for commercial, industrial and standby generator power backup scenarios.

Feature

• Integrated Design: Combines switching hardware and logic control to realize complete electromechanical integration for simplified wiring and installation.
• Multi Safety Functions: Built-in voltage detection, forced 0-position isolation and manual emergency operation to fully protect circuits and loads.
• Wide Load Compatibility: Rated for AC-31A, AC-35A and AC-33A usage, matching most common distribution and motor loads.
• Reliable Durability: Complies with IEC standards, with 8kV impulse withstand voltage and up to 100kA short-circuit current resistance.

Details

1. Incoming Line Terminal: Ensure stable connection and low heat generation for dual power input.
2. Outgoing Line Terminal: Multi-pole output terminals fit elevator, fire control and other critical loads.
3. Indication Part: Clear indicators show real-time power source status at a glance.
4. Padlock Padlock: Reserved padlock position for mechanical locking during maintenance safety isolation.

4 Pole ATS Dimensions(Unit: mm)

4 Pole ATS Wiring Diagram

4 Pole ATS Mounting Method

4 Pole ATS Structure

4 Pole ATS Controller Mode Functions

1. Full Auto: When normal power is off, the ATS will automatically transfer to standby power; when normal power recovers, ATS will auto-transfer back to normal power.
2. Forcedly Switching Off “0” Position: Push “0” button forcedly, and ATS will cut off two loops of power supply.
3. Remote Control: Push “I” button, and normal power will be in service; push “II” button, and backup power will be put into use; push “0” button, and two loops of power supply will be cut off.