ABB Zenith ZTX Series Operation, Maintenance, And Installation Manual page 47

Recommended Operating / Storage Temperature
Do not store the automatic transfer switch in corrosive environments above LC1 (sea
salt mist) and G1 as per ANSI/ ISA-S71.04 -1985. Failure to comply with these instruc-
tions may result in product damage. Store the automatic transfer switch and related
accessories in a clean, dry location in their original packaging.
Environmental
Environments category
EMC environment
Operating temperature (without derating)
Operating temperature (with derating)
Transportation and storage temperature
Altitude (without derating)
—
Table 7.2 General technical data of automatic transfer switch
Type
ZTX 30 - 260A
ZTX 400 - 600A
ZTX 800 - 1200A
Under nominal conditions
1
Time from source fail detection to contact closing on already-available secondary source
2
All times consider that all timers are set to "0"
3
—
Table 7.3 Specified technical data of operating times
Voltage Nominal
[Vac] current*
200 - 480
200 - 480
200 - 480
Operating
transfer time
1, 2
[A] AUTO mode
I-II or II-I
[ms]
37 < 500
40 < 500
40 < 500
47
Value
E
Environment A
-20 - +40 °C
-25 - +70 °C
-40 - +70 °C
Up to 2000 m
Contact
transfer
time
1
I-II or II-I
[ms]
< 50
< 50
< 50