ATS
ATS Manufacturer — Dual Power Automatic Transfer Switches
TPKELE automatic transfer switches (ATS) move critical loads between the mains and a generator, inverter or backup source automatically. Four series cover every backup-power need: ATS-ST and ATS-W2R are PC-class (load-level) switches with fast ~50ms changeover, while STQ1 and STQ2 are CB-class motorized switches with mechanical interlock and ~2s transfer. All are rated 63A at 110V / 220V AC in 2P / 3P / 4P configurations, with auto/manual operation and flame-retardant housings — built for installers, panel builders and project distributors.
- Four series — ATS-ST, ATS-W2R (PC class) and STQ1, STQ2 (CB class)
- Fast PC-class changeover ≤0.05s (50ms) on ATS-ST / ATS-W2R
- CB-class motorized transfer with mechanical interlock on STQ1 / STQ2
Hospitals & life-safety circuitsData centers & telecom roomsProcess industry continuity loadsCommercial buildings with diesel generator backupSolar / hybrid systems with grid-failover
Specified by installers, panel builders and electrical distributors needing reliable automatic source transfer with proven quality and competitive lead time.
Frequently Asked Questions
What is the difference between the PC-class and CB-class series?
ATS-ST and ATS-W2R are PC-class (load-level) switches with very fast ~50ms changeover, ideal where short transfer time matters. STQ1 and STQ2 are CB-class motorized switches with mechanical interlock and a robust ~2s transfer, preferred for fire protection, elevators and heavy industrial backup.
What current ratings and poles are available?
All four series are rated 63A (operating range 6A–63A) and offered in 2P, 3P and 4P (ATS-ST is 2P / 4P). Contact us with your line current and phase configuration and we will confirm the right model.
Can the ATS work with diesel generators?
Yes — all series are designed for mains plus generator, inverter or backup setups. They transfer loads automatically when the primary source fails and return when mains is restored.
Do you support OEM branding for ATS?
Yes — logo, label and packaging customization are available for distributor and brand-owner programs.
