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1 / 6ATS Dual Power Switch
STQ1-63 63A 2P CB Class Auto Transfer Switch 110V/220V - Economical ATS for Home, RV & Fire Protection
The STQ1-63-2P is a CB class automatic transfer switch for single-phase 110V or 220V AC systems up to 63A, designed as an economical civilian-grade solution for non-critical backup power applications. Unlike PC class switches, the STQ1-63 uses a circuit breaker with mechanical interlock mechanism 鈥?physically preventing both power sources from connecting simultaneously. When Normal Power (N/mains) fails, the unit automatically transfers the load to the backup source (generator or PV inverter) in approximately 2 seconds; a brief 2s power interruption occurs during the switchover, which is acceptable for most residential and light-commercial loads. The unit reverts to Normal Power priority automatically once mains is restored. With a maximum load capacity of approximately 6930W (鈮?.9kW) and compatibility with mains, generator, and PV inverter sources, the STQ1-63-2P is a cost-effective solution for home emergency backup, RV setups, elevators, and fire-protection panel circuits.
Key Features
- 2-pole switching (Live + Neutral) 鈥?2 inputs / 1 output
- CB class 鈥?circuit breaker with mechanical interlock, prevents dual-power connection
- ~2s auto transfer time 鈥?brief 2s interruption acceptable for most civilian loads
- Dual voltage: supports both 110V and 220V AC single-phase
- Auto & manual transfer modes; Normal Power (N) priority with auto return
- Compatible with mains, generator, and PV inverter sources
- Max load capacity: ~6930W (鈮?.9kW)
- Economical civilian-grade ATS 鈥?cost-effective alternative to PC class units
Samples available · OEM pricing on request · Ships worldwide
Technical Specifications
| Poles | 2P (Live + Neutral) |
| Rated Current | 63A (Working Range: 6A鈥?3A) |
| Rated Voltage | 110V / 220V AC |
| Frequency | 50/60Hz |
| Phase | Single Phase |
| Type | CB Class (Circuit Breaker + Mechanical Interlock) |
| I/O Configuration | 2 Inputs / 1 Output |
| Priority Source | Normal Power (N / Mains) |
| Compatible Sources | Mains, Generator, PV Inverter |
| Switching Mode | Auto & Manual |
| Auto Transfer Time | ~2s |
| Power Interruption | Brief ~2s during transfer |
| Max Load Power | ~6930W (鈮?.9kW) |
| Internal Components | PCB Control Board, Motor, Thermal Relay |
| Applications | Home Emergency, Fire Protection, Elevators, RV |
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