213859 / 825260300060
2019-08-07·BA00·III·en·05
Putting into Service
11
Terminal Box Ex d
8252/1
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Table 1:
Versions differing from the specifications given in Table 1, such as mixed equipment with
terminals of different cross-sections or types, can only be supplied ex factory.
Subsequent changes or retrofitting are not possible in this case.
12
Putting into Service
Before putting into service
- Make sure that the components are not damaged.
- Make sure that the device has been installed correctly.
- Remove any foreign objects from the device.
- Check the tightening torques.
13
Maintenance, overhaul and repair
The following details must be checked during maintenance:
- Compliance with the permitted temperatures (according to ANSI/ISA 60079)
- Damage to the enclosure and to the thread
Terminal
type
MBK 2.5/E
MBK 3/E-Z
MBK 5/E-Z
UT 2.5
UT 4
UT 6
UT 10
UT 16
ST 2.5
ST 4
ST 6
STTB 2.5
STTB 4
Rated volt
-
age
176
V
275
V
500
V
690
V
690
V
690
V
690
V
690
V
550
V
550
V
550
V
440
V
550
V
Rated cur
-
rent
22 A 28 A 32 A 30 A 41 A 53 A 74 A 97 A 29 A 36 A 48 A 25 A 36 A
Maximum
number of
terminals
Enclosure
size 2
8252/12
8
8
8
–
–
–
–
–
–
–
–
–
–
Enclosure
size 3
8252/13
10
10
8
6
5
4
–
–
6
4
–
–
–
Enclosure
size 4
8252/14
17
17
14
11
11
10
6
5
11
10
4
5
3
WARNING
No explosion protection if enclosure is improperly closed!
The device must be operated only with completely closed enclosures.
WARNING
Live parts may cause electric shock!
Do not open the enclosure when live!
Summary of Contents for 8252/1
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