The Kohler RXT JMTC QS3 Three Phase 400 Amp 3 Pole 480V Automatic Transfer Switch delivers commercial and heavy industrial-grade emergency power control for large facilities and complex electrical architectures. Part of the advanced RXT series, this heavy-duty power switch continuously monitors incoming utility power grid lines 24/7 to automatically prompt generator initialization and securely shift major electrical loads the moment utility power fails.

Engineered for high-voltage multi-phase distribution, this Three Phase 3-Pole 4-Wire Automatic Transfer Switch is designed for exclusive use with Kohler standby generators equipped with advanced RDC2 or DC2 controller boards. Operating with built-in load control time delay logic, it seamlessly manages automatic operation to protect complex manufacturing equipment and prioritized building circuits without overloading the generator backup system.

Built for exceptional field longevity and extreme environmental resilience, this robust assembly weighs 104 lbs and features massive mechanical contacts safely wrapped inside a rugged, corrosion-resistant aluminum enclosure measuring 48.1 x 24.0 x 13.5 inches. Tested and verified under rigorous safety codes, this premium US-built transfer switch supports optional external status displays and ensures quiet, secure operation during extended grid blackouts, backed by a 5-year limited equipment warranty.

Key Features

• Designed for use only with KOHLER generators equipped with RDC2 or DC2 controls
• Installs indoors or outdoors with heavy-duty construction
• Available in service-entrance models
• Optional external LED performance status display
• Corrosion-resistant protective aluminum enclosure
• Premier 5-year, 2000-hour limited equipment warranty
• Industrial 400-amp model with 480V configuration
• Poles: 3 (three-phase 4-wire setup)

Specifications