Withstand Ratings - GE Zenith Controls ZTS Specification

ZTS Series

Withstand Ratings

GE Zenith ZTS Series Automatic Transfer Switches have been subjected to an extensive test program to show that they comply with and exceed UL 1008 standards,
as well as the various performance specifications used by most government agencies and major electrical engineering firms throughout the world. The primary test to
ensure the quality and dependability of an automatic transfer switch is its ability to close into and withstand high fault currents. The table shows the Underwriters
Laboratories and Canadian Standards certified withstand and closing current ratings in symmetrical RMS amperes at 480 and 600 volts AC .
GE Zenith ZTS Switches
Rated for Total Systems or Motor Loads (1)
UL 1008
GE Zenith
ZTS Switch
Model No.
Rating
ZTS4 (2) 40
ZTS8 (2) 80
ZTS10 (2) 100
ZTS15 (2) 150
ZTS22 (2) 225
ZTS26 (2) 260
ZTS40 (2) 400
ZTS60 600
ZTS80 800
ZTS100 1000
ZTS120 1200
ZTS160 1600
ZTS200 2000
ZTS300 3000
ZTS400 4000
ZBTS10 (2) 100
ZBTS15 (2) 150
ZBTS22 (2) 225
ZBTS26 (2) 260
ZBTS40 (2) 400
ZBTS60 600
ZBTS80 800
ZBTS100 1000
ZBTS120 1200
ZBTS160 1600
ZBTS200 2000
ZBTS300 3000
ZBTS400 4000
ZTSD4 (2) 40
ZTSD8 (2) 80
ZTSD10 (2) 100
ZTSD15 (2) 150
ZTSD22 (2) 225
ZTSD26 (2) 260
ZTSD40 (2) 400
ZTSD60 (2) 600
ZTSD80 (2) 800
ZTSD100 (2) 1000
ZTSD120 (2) 1200
1. For each rating attained in above table, the heat run was
performed after the overload and endurance tests.
2. These models also listed for 100% tungsten lamp loads.
3. Consult factory for coordinated breaker types and ratings.
age 7 • PB-5066
P
Current Limiting Fuse
Maximum Maximum
Maximum
Circuit Amps Circuit Amps
Fuse Size
at 480 VAC at 600 VAC
Amps
( UL ) ( CSA )
50 200,000 200,000
100 200,000 200,000
125 200,000 200,000
200 200,000 200,000
300 200,000 200,000
350 200,000 200,000
600 200,000 200,000
750 200,000 150,000
1000 200,000 150,000
1250 200,000 150,000
1500 200,000 150,000
2000 200,000 150,000
2500 200,000 150,000
4000 200,000 150,000
6000 200,000 150,000
125 200,000 200,000
200 200,000 200,000
300 200,000 200,000
350 200,000 200,000
600 200,000 200,000
750 200,000 150,000
1000 200,000 150,000
1250 200,000 150,000
1500 200,000 150,000
2000 200,000 150,000
2500 200,000 150,000
4000 200,000 150,000
6000 200,000 150,000
50 200,000 200,000
100 200,000 200,000
125 200,000 200,000
200 200,000 200,000
300 200,000 200,000
350 200,000 200,000
600 200,000 200,000
750 200,000 200,000
1000 200,000 N/A
1250 200,000 200,000
1500 200,000 200,000
4. All transfer switches are rated in coordination with the protective
5. Consult the factory for IEC ratings.
Withstand and Closing Current Ratings per UL 1008 and CSA
Specific Coordinated
Breaker Rating (3)
Maximum Maximum
Circuit Circuit Amps
Breaker at 480 VAC
Size Amps ( UL )
400 30,000
400 30,000
400 30,000
400 30,000
800 50,000
800 50,000
800 50,000
800 65,000
1600 65,000
1600 85,000
1600 85,000
2500 100,000
2500 100,000
4000 100,000
5000 100,000
800 50,000
800 50,000
800 50,000
800 50,000
800 50,000
800 65,000
1600 85,000
1600 85,000
1600 85,000
2500 100,000
2500 100,000
4000 100,000
5000 100,000
800 50,000
800 50,000
800 50,000
800 50,000
800 50,000
800 50,000
800 50,000
800 65,000
1200 65,000
1600 85,000
1600 85,000
device installed. Lower rated devices than those shown may be
utilized and the system rated accordingly.
Any Molded Case
Breaker Rating
Maximum
Maximum
Circuit Amps
Circuit Amps
at 600 VAC
at 480 VAC ( UL )
( CSA )
22,000 10,000
22,000 10,000
22,000 10,000
22,000 10,000
42,000 35,000
42,000 35,000
42,000 35,000
50,000 50,000
50,000 50,000
65,000 50,000
65,000 50,000
85,000 100,000
85,000 100,000
85,000 100,000
85,000 100,000
42,000 35,000
42,000 35,000
42,000 35,000
42,000 35,000
42,000 35,000
50,000 50,000
65,000 50,000
65,000 50,000
65,000 50,000
85,000 100,000
85,000 100,000
85,000 100,000
85,000 100,000
42,000 35,000
42,000 35,000
42,000 35,000
42,000 35,000
42,000 35,000
42,000 35,000
42,000 35,000
50,000 50,000
N/A 50,000
65,000 50,000
65,000 50,000
Maximum
Circuit Amps
at 600 VAC ( CSA )
10,000
10,000
10,000
10,000
35,000
35,000
35,000
42,000
42,000
42,000
42,000
85,000
85,000
85,000
85,000
35,000
35,000
35,000
35,000
35,000
42,000
42,000
42,000
42,000
85,000
85,000
85,000
85,000
35,000
35,000
35,000
35,000
35,000
35,000
35,000
42,000
N/A
42,000
42,000