Flash sale Thomson 400 Amp 3 Poles Automatic Transfer Switch is in perfect working condition! fully operational and functions as intended.come with warranty
The Thomson Power Systems 400 Amp 3-Pole Automatic Transfer Switch (commonly found in TS910, TS920, or TS870 series) is an industrial-grade, open-transition switching system designed for 3-phase, 4-wire applications. It features micro-processor controls, high short-circuit withstand ratings, and robust mechanical interlocks
Specification
- Amperage: 400 Amps (100% continuous current rating)
- Poles / Phases: 3-Pole, 3-Phase (4-wire system with solid neutral)
- Voltage Options: Reconnectable ranges including 120/208V, 120/240V, 277/480V, up to 600VAC (depending on exact series model like TS910 vs TS870)
- Frequency: 50 / 60 Hz
- Withstand Current Rating: Up to 50kA–65kA symmetrical amps (higher with specific fuse configurations)
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- Controller Type: Advanced microprocessor controller ( TSC9 or TSC7320 series depending on light commercial or mission-critical line)
- Transition Type: Open Transition (Break-before-make) with adjustable neutral delay
- Engine Start: 2-wire dry contact output for automatic generator start/stop
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