Dual Power Supply Switch (Automatic Transfer Switch, 3Pole, 100 A, 220 V) Product overview This automatic transfer switch (ATS) provides fast, reliable switching between a primary power source and a backup source for residential and light commercial electrical systems. Designed for household orbittype installations and compatibility with PZ30 power distribution boxes, the unit is a compact 3pole selector switch rated for 100 A and 220 V operation at 50 or 60 Hz. Key benefits Minimize downtime: Automatic transfer occurs in 0.05 seconds or less, reducing interruption when switching between mains and backup power. Flexible control: Integrated manual and automatic modes let you choose automatic transfer or manual override for maintenance or testing. Durable conduction: Industrialgrade silver contacts provide improved electrical conductivity for consistent switching performance. Robust internal connections: Braided internal wiring supports secure, reliable internal connections and installation stability. Easy integration: Designed for household orbittype distribution and compatible with PZ30 power distribution boxes for straightforward installation. Features and specifications Name: Dual Power Supply Switch Type: Electrical selector switch, automatic transfer switch function Poles: 3pole configuration for threephase or threewire singlephase systems as applicable Current rating: 100 A Voltage: 220 V Frequency: 50/60 Hz compatibility Switching time: 0.05 seconds or less Contacts: Industrial silver contacts for enhanced conductivity Internal wiring: Braided internal wire for reliable connections Operation modes: Manual and automatic integrated design Installation: Designed for household orbittype installations; compatible with PZ30 power distribution box Package contents 1 x ATS for Power Backup 1 x User Manual 1 x Mounting Kit Practical applications and use scenarios Home backup generator integration: Automatically transfer household power from mains to a standby generator during an outage, then switch back when mains power is restored. Manual mode supports testing and commissioning. Home office and critical circuits: Protect routers, network equipment, and workstation circuits by minimizing downtime during power transitions. The fast switching time helps prevent brief interruptions that can disrupt sensitive electronics. Small commercial or utility circuits: Use in small shops or utility rooms to switch lighting, refrigeration, pumps, or HVAC control circuits between primary and backup sources while maintaining centralized installation in a PZ30 distribution box. Installation and operation notes Ensure compatibility with your distribution box and wiring layout before installation. Observe local electrical codes and use a qualified electrician for connection and commissioning. Use manual mode for maintenance or system checks; use automatic mode for routine transfer operation. This dual power supply switch offers a straightforward solution for fast, selectable transfer between power sources while fitting standard household distribution configurations.