Betriebsanleitung / Operating manual
Leitungsdurchführungen / line bushings
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Version 06/2018 Seite/page 17/30
3. Identification Key
LB _ _ _ _ _ _ _ / _____
*same for blind plug gettable
Identification line bushing
Type Code:
S = Threaded, P= Pluggable
U = Threaded with impact protection
Z = Pluggable with impact protection
Number of cores ( 2 digits)
00 = no cores (Blind Plug)
55 = 55 cores
Without Ex-protection relevance
Thread/gap type:
M = Metric
N = NPT-thread
W= Whitworth thread
S = Special thread in accordance
with the minimum requirements
of IEC/EN 600079-1 table 3 or 4
1 = without thread (gap length
≥ 12,5mm < 25mm)
2 = without thread (gap length
≥ 25mm < 40mm)
3 = without thread (gap length
≥ 40mm)
P = special type in accordance with
the minimum requirements of
IEC/EN 60079-1 table 1 or 2
Average surface finish
Ra < 6,3µm
Size of thread/core diameter
(2digits) e.g.:
10,15,16,18,22,24,30,32,33,34,36,
38,40,42
.
Rated insulation voltage:
0 = without
1 = 440V; 2 = 690V; 3 = 1000V;
4 = 3000V; 5 = 6000V
