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SPECIFICATIONS
ENCLOSED AUTOMATIC TRANSFER SWITCH
Enclosure Size
Type 1 24” H x 14¼” W x 8” D..................
(610 mm H x 362 mm W x 203 mm D)
Type 3R 25” H x 14¾” W x 8½” D...............
(635 mm H x 375 mm W x 216 mm D)
Weight Type 1 enclosure 67 lb......................
Type 3R enclosure 82 lb.....................
Temperature
Operating –4˚ F to +122˚ F(–20˚ Cto+50˚ C)...
Storage –67˚ F to +149˚ F(–55˚ Cto+65˚ C)....
TRANSFER SWITCH
Poles 2............................................
Voltage (nominal) 220–240 V ac single pha se..........
Frequency (nominal) 60 Hz...........................
Current (depending upon the unit) 100, 200, or 230 amps
Withs tand / Close–On Current 10,000 amps............
RMS Symmetrical amps 240 V ac max.
for any circuit breaker, manufacturer, or Type
per National Electrical Code, NEC/NFPA 70
100 amp. Transfer Switch pow er terminals accept wire sizes
one #14 to 4/0 AWG AL or CU
200 amp. Transfer Switch pow er terminals accept wire sizes
one #14 to 4/0 AWG CU (copper only)
230 amp. Transfer Switch pow er terminals accept wire sizes
one #14 to 4/0 AWG CU (copper only)
CONTROLLER
Voltage (nominal) 220–240 V ac......................
Pickup (source acceptable) 204 V ac............
Dropout (source unacceptable) 180 V ac........
Frequency (nominal) alternate (generator) source 60 Hz.
Pickup (source accept able) 57 Hz...............
Dropout (source unacceptable) 54 Hz...........
Generator control contacts
Start / Stop spdt 5 A max / 300 mA min at 30 V dc max.
terminals accept #22 to #14 AWG
stranded copper wire per terminal
Time Delays
Ignore preferred (utility) source outages 3 sec.........
Ignore alternate (generator) source outages 15 sec.....
Load transfer to alternate (generator) source 15 sec....
Load retransfer to preferred (utility) source 5 min.......
Generator cooldown period (after load retransfer) 1 min.
Automatic Generator Exerciser
Repeat time every 14 days......................
Duration 20 minutes...........................
INTRODUCTION
INTRODUCTION
ASCO Series 165 Automatic Transfer Switches are Listed
under the Underwriter’s Laboratories Standard for Transfer
Switch Equipment, UL–1008. Theyare intended for use only
in optionalstandby systems in accordance withthe National
Electrical Code, NEC/NFPA 70, Article 702.
This automatic transfer s witch is i ntended for standby power
applications in r esidential o r l ight commercial u se only.
The Series 165 Automatic Transfer
Switch is not for e mergency or
life–support systems.
!
This product is not intended for emergency or
life–support systems.
If you have more stringent application requirements contact
ASCO for other products suitable for critical applications.
The automatic transfer sw itch helps provide safe
connection of the alternate source (generator) to the
electrical load after disconnecting the preferred source
(utility). It contains a double–throw, electromechanical
switching device f or inherent isolation of the preferred and
alternate sources. This isolation prevents the danger of
connecting the utility to the generator which could cause
damage or personal injury. The automatic transfer sw itch’s
digital controller provides continuous monitoring of both
power sources and a start/stop signal to the generator.