1. Zero-Wear Electronic Switching (SCR-Based)

• No moving parts: Unlike mechanical ATS units, the SW-STS uses silicon-controlled rectifiers (SCRs) for switching, eliminating mechanical wear, friction, and contact degradation.
• MTBF > 1,000,000 hours: Proven in Tier IV data centers, offering decades of maintenance-free operation.
• 100% solid-state reliability: Ideal for mission-critical environments (hospitals, financial HFT systems, cloud infrastructure).

2. Sub-Cycle Transfer Speed with Phase-Lock Precision

• <4 ms synchronous transfer: Ensures zero perceptible interruption even for the most sensitive IT loads (e.g., servers with PLL-based PSUs).
• <10 ms non-synchronous: Adjustable delay and zero-current crossing modes prevent inrush currents during out-of-phase switching.
• Break-Before-Make topology: Guarantees galvanic isolation between sources, preventing cross-conduction.

3. Extreme Overload & Fault Resilience

• 1000% short-time current capability (250 ms @ >300% load): Handles massive inrush without tripping upstream breakers.
• Selective fault isolation: In case of downstream short circuit, blocks transfer and isolates fault within <1 ms, protecting other loads and maintaining upstream selectivity.
• Backfeed protection K1/K2 circuit: Automatically triggers upstream breakers if reverse power is detected, preventing energy feedback into utility or generator inputs.

4. Ultra-High Efficiency & Thermal Design

• >99% efficiency at full load: Minimal heat generation (<1% loss), reducing cooling costs in dense rack environments.
• Redundant forced-air cooling: Dual fans with failure alarm ensure continuous operation even if one fan fails.
• Low acoustic noise:
  • <52 dBA (50–250A)
  • <55 dBA (300–600A)
  • <60 dBA (800–1250A) → Suitable for office-adjacent or colocation facilities.

5. Built-In Transient Voltage Surge Suppression (TVSS)

• Integrated surge protection on both inputs absorbs spikes, sags, and transients.
• User-configurable voltage/frequency windows allow tailored protection for regional grid variations.

6. Full Frontal Serviceability & Hot-Swap Design

• All connections and boards accessible from front: No rear access required — critical for wall-mounted or zero-U-space installations.
• Modular SCR and control board design: Enables live replacement without load interruption (in redundant dual-STS configurations).
• Cable entry from bottom: Simplifies installation in raised-floor data centers.

7. Advanced Digital Ecosystem Integration

• Standard RS232 + optional RS485/TCP/IP: Full Modbus/SNMP support for DCIM, BMS, and EPMS platforms.
• Dual serial ports + dry contact I/O: Enables alarm integration with fire panels, generators, and security systems.
• Event logging with timestamp: Stores >10,000 power events for forensic analysis and SLA compliance.
• Remote source monitoring: Real-time input voltage, current, frequency, and phase sync status via web interface.

8. Wide Environmental & Electrical Tolerance

• Input voltage range: 180–264 VAC (Ph-N) → Supports brownout conditions without transfer.
• Frequency tracking: 48–65 Hz (adjustable) → Compatible with generator drift and microgrid instability.
• Operating temperature: 0–40°C, <90% non-condensing → Reliable in non-climate-controlled edge sites.

9. Scalability & Configuration Flexibility

• 3-pole and 4-pole versions: 4-pole models switch neutral, preventing ground loops in IT loads with separate N-G bonding.
• Current range: 50A to 1250A: Covers edge computing to hyperscale data halls.
• Parallelable for redundancy: Two STS units can operate in active-active mode with load sharing and automatic failover.

10. Compliance & Future-Proof Design

• Certified to EN 62310-1 (Safety) & EN 62310-2 (EMC).
• RoHS and CE compliant.
• Designed for IEEE 519 harmonic compliance with <10% input THD.