The ATS-250A-RSC-4P changeover switch is designed to automatically transfer load circuits from main power source to reserve source in a wide variety of 1-3 phase applications.

FEATURES

- Electric motor gear activated switching;
- 1-3 phase 4 pole operation;
- Auto and Manual/Remote mode switch;
- 3 position switch handle("I"-"0"-"II");
- Generator start/stop remote control outputs;
- External ATS/AMF controller remote control inputs;
- High reliability and low power consumption due to fixed positions of the change-over mechanism energized during switching process only;
- Front side position indication pointer and external lamp outputs;
- Control signal protection fuses;
- Built-in mechanical and electrical interlocking.

INPUTS AND OUTPUTS

- Normal source inputs: R, S, T, N;
- Reserve source inputs: R, S, T, N;
- Load cirquit outputs: R, S, T, N;
- External indication lamp outputs;
- Generator start/stop remote control outputs;
- External ATS/AMF controller remote control inputs.

TECHNICAL SPECIFICATIONS

- Rated Operating Voltage: 230/400V(2-3 phase), 230V (single phase), 120/208V(3 phase), 120/240V (2 phase).
- Voltage frequency: 50/60Hz.
- Switching poles: 4
- Rated operating current: up to 250А per device pole;
- Working temperature range: from -5'C to +40'C;
- Humidity: up to 95%;
- Installation type: vertical;
- Control voltage: 175-265VAC
- Switching current: up to 0.5A;
- Switching time: 1-2 sec;
- Rated insulation voltage: 800V
- Rated impulse withstand voltage: 8kV
- Rated making capability: 10KA
- Rated short-time withstand currrent Ie 30ms:17KA
- Nominal control supply voltage: 230VAC
- Life switching cycles: up to 10000;
- Use category: AC-331B;
- Altitude: up to 2000 meters;
- Protection class: IP30
- Weight: 2.2 kg.