
?
?
Alignment Key (B series)
Alignment Key and Polarized Keying System
B series connector model part numbers are composed of three letters. The LAST LETTER indicates the key position and the
contact type (male or female).
Front view of a socket
Nb of
keys
00
Series
0B
1B
Nb of
keys
2B
Series
3B
4B
5B
Contact type
Plug Socket
Note
α
G
A
1
2
0°
30°
0°
30°
0°
30°
G
A
1
2
0°
30°
0°
30°
0°
30°
0°
30°
male
male
female
female
q
q
)
B
2
α
60°
60°
60°
B
2
α
45°
45°
45°
45°
male
female
q
C
2
–
90°
90°
C
2
60°
60°
60°
60°
male
female
q
D
2
–
135°
135°
D
2
γ
95°
95°
95°
95°
male
female
q
E
F
2
2
β
–
–
145°
155°
145°
155°
E
F
2
2
β
120°
145°
120°
145°
120°
145°
120°
145°
male
male
female
female
q
q
γ
J
K
L
M
Y
2
2
2
2
3
γ
δ
–
–
45°
–
–
–
–
–
45°
70°
80°
110°
–
–
45°
70°
80°
–
–
–
J
K
L
M
Y
2
2
2
2
3
α
γ
–
β
γ
37.5°
52.5°
70°
–
112.5°
100°
37.5°
52.5°
70°
–
126°
102°
37.5°
52.5°
70°
–
112.5°
147.5°
37.5°
52.5°
70°
–
–
–
female
female
female
female
male
male
male
male
male
female
q
q
q
q
q 1)
Front view of a socket
Nb of
keys
00
Series
0B
1B
Nb of
keys
2B
Series
3B
4B
5B
Contact type
Plug Socket
Note
α
–
–
–
α
–
–
–
95°
R
5
β
γ
–
–
–
–
–
–
R
5
β
γ
–
–
–
–
–
–
115°
20°
male
female
q
δ
–
–
–
δ
–
–
–
30°
Note:
FTG, FGY, ENY models are not available with all the keys. Please consult pages corresponding to these models.
For R qq models see explanation on page 21 and for S qq models see explanation
on page 28.q First choice alternative
q Special order alternative
www.lemo.com
31