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3 Phase Transfer Switch 120/208 L21-20 / Mfr. no.: AP7701

3 Phase Transfer Switch 120/208 L21-20 / Mfr. no.: AP7701
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Item Number: sch-ap7701
Vendor Number: AP7701
Vendor: Schneider Electric It Usa
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APC's Rack Automatic Transfer Switch (ATS), also known as the Redundant Switch, is a high availability switch that has two input power cords, one for each AC line, which provide redundant power to connected equipment. The Rack ATS is designed to supply power to the connected load from a primary AC source. If that primary source becomes unavailable for whatever reason, the Rack ATS will automatically begin sourcing power from the secondary source. The transfer time from one source to the other is seamless to the connected equipment.

General Information

ManufacturerAmerican Power Conversion Corp
Manufacturer Part NumberAP7701
Manufacturer Website Address
Product Name1U Rack Mountable 16A Automatic Transfer Switch
Product TypeAutomatic Transfer Switch

Technical Information

Plug/Connector TypeNEMA L21-20P
Receptacles1 x NEMA L21-20
Protection TypeOverload

Power Description

Input Voltage110 V AC
Input Voltage Range208 V AC3-phase Nominal
Output Voltage208 V AC 3-phase Nominal
Current16 A Line Current Per Phase
Frequency60 Hz

Environmental Conditions

Temperature32°F (0°C) to 113°F (45°C) Operating
Humidity0% to 95% Relative Humidity Operating
Altitude0 ft to 50000 ft Storage

Physical Characteristics

Form Factor1U Rack-mountable
Power Cord/Cable3 ft Output
Weight (Approximate)15 lb


Package Contents
  • 1U Rack Mountable 16A Automatic Transfer Switch
  • Rack Mounting Brackets
Certifications & Standards
  • cUL Listed
  • FCC Part 15 Class A
  • UL Listed
  • VCCI


Limited Warranty2 Year
Parts Warranty/Labor2 Year