Reed contact without series resistor or Namur switch BGU-...NI and
BGU-...RI
Temperature
class
T3, T2, T1
T4
T5
T6
2D dust maximum surface temperature in case of use in Zone 21
T≤+80°C...180°C
1
with plastic cable glands reduced to -20°C
KSR KUEBLER Operating instruction Bypass magnetic switch – BGU-...I
permitted operating temperature at in-
stallation site
-40 ... +80°C (PVC cable)
-50 ... +175°C (Silicone cable)
-30 ... +150°C (Cable LMGSG)
... +100°C (Connection housing)
1
-50
-25 ... +80°C (Connector)
-40 ... +80°C (PVC cable)
-50 ... +100°C (Silicone cable)
-30 ... +100°C (Cable LMGSG)
... +100°C (Connection housing)
1
-50
-25 ... +80°C (Connector)
-40 ... +65°C (PVC cable)
-50 ... +65°C (Silicone cable)
-30 ... +65°C (Cable LMGSG)
... +65°C (Connection housing)
1
-50
-25 ... +65°C (Connector)
-40 ... +50°C (PVC cable)
-50 ... +50°C (Silicone cable)
-30 ... +50°C (Cable LMGSG)
... +50°C (Connection housing)
1
-50
-25 ... +50°C (Connector)
The maximum surface temperature of the operating material
depends on the operating temperatures of the fluid and the
ambient temperature and is 5 K higher than the operating
temperature at the installation site.
permitted am-
bient tempera-
ture
-40°C...+80°C
-40°C...+80°C
-30°C...+80°C
...+80°C
1
-40°C
-25°C...+80°C
-40°C...+80°C
-40°C...+80°C
-30°C...+80°C
...+80°C
1
-40°C
-25°C...+80°C
-40°C...+65°C
-40°C...+65°C
-30°C...+65°C
...+65°C
1
-40°C
-25°C...+65°C
-40°C...+50°C
-40°C...+50°C
-30°C...+50°C
...+50°C
1
-40°C
-25°C...+50°C
55