American Power Conversion AP7721 User Manual
Automatic Transfer Switch
Overview
The American Power Conversion (APC®) Rack Automatic Transfer Switch (ATS) provides reliable,
redundant power to single-corded equipment. The Rack ATS has dual input power cords supplying
power to the connected load. If the primary source becomes unavailable, the Rack ATS will
seamlessly source power from the secondary source without interrupting critical loads. Networked
units have built-in network connectivity, which allows for remote management via Web, SNMP, or
Telnet interfaces.
Rear view—AP7721
Item Description/Function
Power inlets The two (2) C14 inlets support the connection of two
Outlets The outlets connect the ATS to equipment in the rack or
power cords (not provided) to link the ATS to two
separate power sources (A, B). The switch draws power
from the preferred source and automatically switches to
the secondary source when necessary.
enclosure, providing a redundant source of power to the
connected equipment. Each switch has twelve (12) C13
outlets.
Specifications
AP7721
Electrical
Nominal input voltage 208 or 230 Vac (software selectable)
Acceptable input voltage ±10% of nominal
Input frequency 50/60 Hz
Input connectors Two (2) C14 inlets
Output connectors Twelve (12) C13 outlets
Maximum output current
(outlet)
Maximum output/input
current
Overload protection
Internal
External (recommended)
Transfer time
10 A–C13, 12 A for North America
10 A, 12 A for North America
Not provided with unit
16 A facility provided
8–12 ms typical, 16 ms maximum 60 Hz,
18 ms maximum 50 Hz
Physical
Dimensions
(H x W x D)
Shipping dimensions
(H x W x D)
Weight 3.65 kg (8.05 lb)
Shipping weight 5.42 kg (11.95 lb)
4.37 x 43.00 x 23.62 cm
(1.72 x 17.00 x 9.30 in)
11.43 x 60.02 x 35.56 cm
(4.50 x 23.63 x 14.00 in)
Environmental
Maximum elevation
(above MSL)
Operating
Storage
Temperature
Operating
Storage
Humidity
Operating
Storage
0 to 3000 m (0 to 10,000 ft)
0 to 15 000 m (0 to 50,000 ft)
–5 to 45°C (23 to 113°F)
–25 to 65°C (–13 to 149°F)
0 to 95%, non-condensing
0 to 95%, non-condensing
Compliance
EMC approvals
Safety approvals TUV, cTUVus, S-Mark (Argentina), GOST-R, CE
Customer support and warranty information is available at the APC Web site, www.apc.com.
© 2010 American Power Conversion. All rights reserved. All APC trademarks are property of American Power
Conversion. Other trademarks are property of their respective owners.
EN55022-Class A, FCC-Class A, VCCI, MIC,
C-Tick, ICES-003 Class A, CE
990-3033D-001
12/2010
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