ABB Zenith ZTG 30 Operation, Maintenance And Installation Manual page 89

Automatic transfer switches
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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 7.1 General technical data of automatic transfer switch
Type
ZTG 30 - 260A
ZTGD 30 - 260A
ZTG 400 - 600A
ZTGD 400 - 600A
ZTG 800 - 1200A
ZTGD 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 7.2 Specified technical data of operating times
Voltage
Nominal
[Vac]
current*
[A]
200 - 480
37
200 - 480
37
200 - 480
40
200 - 480
40
200 - 480
40
200 - 480
40
Operating time*
= current duration
transfer time
I-0, 0-I,
0-II, II-0
[ms]
-
< 110
-
< 130
-
< 130
89
Value
E
Environment A
-20... +40 °C
-25... +70 °C
-40... +70 °C
Up to 2000 m
Operating
Contact
transfer
1, 2
AUTO mode
time
1
I-II or II-I
I-II or II-I
[ms]
[ms]
< 500
< 50
< 500
< 50
< 500
< 50
< 500
< 50
< 500
< 50
< 500
< 50

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