Siemens SIMOTICS GP Operating Instructions Manual page 73

Cable entries for explosion-proof machines
The cable entries (cable glands) must have an EC or EU type
examination certificate and be certified for the particular hazardous zone.
•
•
•
Thread sizes in terminal box.
Thread sizes in the cast iron terminal box.
Frame
Type
size
140
180
210
250
280
320
360
400
447
449
Connecting Converters.
WARNING
Machine overheating
Operating explosion-protected machines at the converter without using
the appropriate protective equipment can result in death or severe injury.
•
Always use Thermal Protectors monitoring when operating
explosion-protected machines at the converter. Tripping units
according to directive 94/9/EC are always necessary when using
Thermal Protectors monitoring.
Unrestricted
Any openings that are not being used must be sealed using
the corresponding certified plugs.
Please observe the manufacturer's specifications when
fitting cable entries.
Before installing the cable, remove the dust protection
element or plug from the cable gland.
Type of
protection
(Zone)
Standard thread
Size Number
¾"
- 14NPT
¾"
- 14NPT
1" - 11.5 NPT
1.25"-11.5 NPT
1.5" - 11.5 NPT
2" - 11.5 NPT
2" - 11.5 NPT
3" - 8 NPT
3" - 8 NPT
3" - 8 NPT
73
Additional thread
with mounting parts
Size
1
1
1
1
1
1
1
1
1
1
A5E43486667A_AB
Number
1
1
1
1
1
2
2
2
2
2