Key Advantages & Technical Features
① High Reliability & Fast Switching
Ultra-Fast Transition: Achieves source-to-source transfer in ≤0.2 seconds, minimizing downtime for sensitive equipment.
Robust Design: Mechanical interlocks prevent simultaneous connection of dual power sources, ensuring operational safety.
Durable Performance: Withstands 60kA short-circuit current and offers a mechanical lifespan of 10,000 cycles, reducing maintenance needs.
② Flexible Operation Modes
- Supports automatic, electric, and manual control, adaptable to diverse scenarios.
- Emergency Manual Override: Allows safe switching during power failures or maintenance, though manual load operation is restricted to avoid contact wear.
- Integrated controllers (e.g., SKR4-B) enable precise monitoring and configuration.
Technical Parameters Table
Item | Specification |
Conventional Free Air Thermal Current Ith | 3200A, 3600A, 4000A, 4500A, 5000A, 6300A |
Busbar Rated Insulation Voltage Ui | AC1000V |
Rated Impulse Withstand Voltage Uimp | 12kV |
Busbar Rated Operating Voltage Ue | 660V 50/60Hz |
Busbar Rated Operating Current Ie | 3200A, 3600A, 4000A, 4500A, 5000A, 6300A |
Mechanism Structure | Three-position type |
Connection Method | Rear connection (Front connection available upon special request) |
Poles(P) | 3P | 4P |
Weight (kg) | 121 | 190 |
Operating Current (A) | DC110V/125V | 36 | 38 |
AC100V/110V | 36 | 38 |
AC200V/220V/230V | 18 | 20 |
Tripping Current (A) | DC110V/125V | 6 |
AC100V/110V | 6 |
AC220V/230V | 2 |
Short-Time Withstand Current | 60kA |
Performance | Rated limiting short-circuit current （fuse protection) | 180kA |
Category of use | AC-33A |
Contact switching time | A → B | ≤ 0.2s |
B → A |
Service Life | Electrical life (times): 6000 |
Mechanical life: 10000 |
Number of operating cycles (times/h) | 120 |
Auxiliary Contact | Each of A and B power sources has 2 NO and 2 NC contacts. |
Contact capacity: AC: 110V 5A / AC: 220V 3A / DC: 220V 0.2A |
Application Scenarios
- Critical Infrastructure: Hospitals, data centers, and emergency lighting systems requiring zero downtime.
- Industrial Facilities: Manufacturing plants with high-power machinery dependent on stable power supply.
- Commercial Buildings: Shopping malls, airports, and telecom hubs needing backup power resilience.
- Renewable Energy Systems: Integration with solar/wind grids for seamless hybrid power management.
FAQs
Q1: What control voltage is required for the ATS?
A: Standard control voltage is AC 230V or DC 110V/125V. Ensure wiring complies with specified cross-sections (4mm²–6mm²) and avoid voltage drops for optimal performance.
Q2: How to ensure safe installation?
A: Install vertically in enclosures, maintain clearance per dimension diagrams, and use upstream circuit breakers for protection. Verify phase alignment between primary/backup sources.
Q3: Does the ATS support auto-reversion to the primary source?
A: Yes. In auto-recovery mode, the ATS automatically switches back to the primary source once restored. Configure via time relays (e.g., KT1/KT2) with ≥0.5s delay to avoid transient issues.
