Product Description
Key Features & Benefits
-
Ultra-Fast Transfer: Provides automatic, seamless transfers between two independent power sources, ensuring zero downtime for downstream equipment.
-
Triple Redundant Logic: Utilizes three independent logic boards to control the switching process, ensuring that no single component failure can prevent a safe transfer.
-
Fuseless Design: Unlike many competitors, the STS2 is 100% rated and does not rely on fuses, which improves reliability and simplifies maintenance.
-
Front-Only Service Access: All components are accessible from the front of the unit, allowing it to be installed against a wall or in a back-to-back configuration to save valuable floor space.
-
Internal CANBUS Protocol: Features a high-bandwidth communication system between internal components for faster diagnostics and more reliable switching decisions.
-
User-Friendly Interface: Equipped with a detailed LCD display and LED mimic bus for real-time monitoring of source status and load conditions.
Technical Specifications
| Feature | Specification |
| Current Rating | 800 Amps |
| Phase | 3-Phase (Input & Output) |
| Voltage Options | 208V, 220V, 240V, 380V, 415V, 480V, 600V |
| Transfer Time | < 4ms (sub-cycle) |
| Dimensions (WxHxD) | 84″ x 77″ x 32″ (2134 x 1956 x 813 mm) |
| Weight | ~2,500 lbs (1,134 kg) |
| Overload Capacity | 125% for 30 minutes; 1000% for 1 cycle |
| Cooling | Forced Air (Redundant Fans) |


