Automatic Transfer Switches (ATSs)

APC AP4422. AC input frequency: 50 - 60 Hz. Form factor: Rackmount, Rack capacity: 1U, Product color: Black. AC outlets quantity: 2 AC outlet(s). Weight: 9.28 lbs (4.21 kg). Package width: 23.6" (600 mm), Package depth: 13.7" (349 mm), Package height: 4.49" (114 mm)

APC AP4421A. Input operation voltage (min): 207 V, Input operation voltage (max): 253 V, AC input frequency: 50/60 Hz. Form factor: Rackmount, Rack capacity: 1U, Product color: Black. AC outlets quantity: 12 AC outlet(s), AC outlet types: C13 coupler. Width: 17" (432 mm), Depth: 9.29" (236 mm), Height: 1.73" (44 mm)