Precision modular connectors to suit your application
Since its creation in Switzerland in 1946 the LEMO Group has been recognized as a global leader of circular Push-Pull con-
nectors and connector solutions. Today LEMO and its affiliated companies, REDEL and COELVER, are active in more than
80 countries with the help of over 40 subsidiaries and distributors.
Over 50’000 connectors
The modular design of the LEMO range provides over 50’000 connectors from miniature ø 3 mm to ø 50 mm, capable of han-
dling cable diameters up to 30 mm and for up to 114 contacts.
This vast portfolio enables you to select the ideal connector configuration to suit almost any specific requirement in most mar-
kets, including medical devices, test and measurement instruments, machinery, audio video broadcast, telecommunications
and military.
LEMO’s Push-Pull Self-Latching Connection System
(not shown in this catalogue)
This self-latching system is renowned worldwide for its easy and quick mating and unmating features. It provides absolute secu-
rity against vibration, shock or pull on the cable, and facilitates operation in a very limited space.
The LEMO self-latching system allows the connector
to be mated by simply pushing the plug axially into the
socket.
Once firmly latched, connection cannot be broken by
pulling on the cable or any other component part other
than the outer release sleeve.
When required, the connector is disengaged by a sin-
gle axial pull on the outer release sleeve. This first dis-
engages the latches and then withdraws the plug from
the socket.
UL Recognition
LEMO connectors are recognized by the Underwriters Laboratories (UL). The approval of the complete system (LEMO
connector, cable and your equipment) will be easier because LEMO connectors are approved.
CE marking
CE marking
means that the appliance or equipment bearing it complies with the protection requirements of one or
several European safety directives. CE marking
applies to complete products or equipment,
but not to electrome-
chanical components, such as connectors.
RoHS
LEMO connector specifications exceed the requirements of the RoHS directives (2002/95/EC) of the European Parliament
and the latest amendments. This directive specifies the restrictions of the use of hazardous substances in electrical and elec-
tronic equipment marketed in Europe. LEMO guarantees that its connectors are free of mercury, cadmium, lead, hexavalent
chromium and polybromide biphenyl (PBB), polybromide diphenyl ether (PBDE), or DecaBDE.
www.lemo.com
®
®
W Series
W Series connectors have been developed for utilisation where protection must be guaranteed under high pressures of
liquids. The basic elements, insulators, contacts and clamping system are from the B series. The push-pull latching system
has been replaced by a screw coupling system with watertightness maintained by compression of an O-ring in FPM (Viton
®
)
according to the triangular shaped cavity principle. There are multiple application possibilities ranging from nuclear physics
to the petroleum industry. After cable assembly, the rear part must be covered by an adhesive heatshrink boot in order to
ensure watertightness on the cable side. W series connectors provide the following main features:
– multipole types from 2 to 64 contacts
– fibre optic or mixed types available upon request
– solder or crimp contacts
– keying system («G» key standard) for connector alignment
– multiple key options to avoid cross mating of similar connectors
– 360° screening for full EMC shielding
– rugged housing for extreme working conditions.
Interconnections
Models
(page 3)
Straight plugs
Fixed socket
Free sockets
FVG
PVG
FVG
EVG
PVG
FVG
PVG
Vacuumtight models
(page 6)
Fixed sockets
HVG
HRG
Part Section Showing Internal Components
Straight plug
1
outer shell
3
2
4
1
7
5
6
8
7
6
2
3
1
5
9
11 12
10
4
2
coupling nut
3
circlip
4
collet nut
5
split insert carrier
6
o-ring
7
insulator
8
male contact
9
earthing cone
10
collet
11
gasket
12
washer
www.lemo.com
1
Fixed socket
1
outer shell
2
earthing crown
3
retaining ring
4
hexagonal nut
5
insulator
6
female contact
7
O-ring
®
®
Part Number Example
Straight plug with cable collet
FVA
2W
319
C
L
A C 85
Model: (page 3)
Series: (page 3)
Insert configuration: (page 7)
Housing:
C = brass chrome-plated
S = stainless steel AISI 304
Insulator:
L = PEEK, for solder contacts
Y = PEEK, for crimp contacts
Variant: (page 14)
1)
Z = nut for fitting a bend relief
Cable ø: (page 12)
Collet type:
C = cable collet
K = oversize cable collet
Contact type:
A = male to solder
C = male to crimp
FVA.2W.319.CLAC85
= straight plug with key (A), 2W series, multipole type with 19 contacts, outer shell in chrome-
plated brass, PEEK insulator, male solder contacts, C type collet for 8.5 mm diameter cable.
Fixed socket, vacuumtight
HVG
2W
306
C
L
L
P
V
Model: (page 6)
Series: (page 6)
Insert configuration: (page 7)
Housing:
C = brass chrome-plated
S = stainless steel AISI 304
V = vacuumtight
Sealing epoxy resin:
P = Araldite
®
S = Stycast
®
Contact type:
L = female to solder
Insulator:
L = PEEK, for solder contacts
Y = PEEK, for crimp contacts
HVG.2W.306.CLLPV
= fixed socket, nut fixing, key (G), 2W series, multipole type with 6 contacts, outer shell in chrome-
plated brass, PEEK insulator, female solder contacts, potted with Araldite
®
epoxy resin, vacuumtight.
Note:
1)
The «Variant» position in the reference is used to specify either the presence of a collet nut for fitting the bend relief.
For models with collet nut for fitting the bend relief, a «Z» should be indicated and a bend relief can be ordered separately. An order for a connector with
bend relief should thus include two part numbers.
Alignment Key
Alignment Key and Polarized Keying System
W series connector model part numbers are composed of three letters. The LAST LETTER indicates the key position and
the contact type (male or female).
Angles
Model
Front view of a socket
Series
0W-5W
0°
30°
45°
75°
Contact type
Note
Plug
male
male
male
female
Socket
female
female
female
male
●
●
●
●
Nb of
keys
1
2
2
2
G
A
B
L
2
α
γ
●
Available
●
On request
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®
®
Models
Technical Characteristics
Mechanical and Climatical
Characteristics
Endurance
Temperature range
Salt spray corrosion test
Protection index (mated)
Resistance to hydrostatic
pressure (mated)
Climatical category
Value
Standard
Electrical
Characteristics
Shielding
efficiency
at 10 MHz
at 1 GHz
Value
> 95 dB
> 80 dB
Standard
IEC 60169-1-3
IEC 60169-1-3
> 1000 cycles IEC 60512-5 test 9a
-20° C, +200° C
> 144h
IEC 60512-6 test 11f
> IP 68
IEC 60529
~ 30 bars
1)
20/200/21
IEC 60512-7 test 14d
IEC 60068-1
Note:
1)
in order to perform correctly and withstand the pressure, cable
assembly shall be made according to instruction we recommand. See
page 16.
FVG
Straight plug, key (G) or keys (A, B or L),
cable collet
Reference
Model
~L
S3
~M
S1
Dimensions (mm)
A
17.2
19.3
23.5
27.8
34.3
50.0
B
L
M
30.8
35.5
43.0
48.0
57.5
83.0
N
13.5
14.0
15.5
16.5
17.5
21.0
S1
16
18
22
26
32
47
S3
8
9
12
15
19
30
Series
0W
1W
2W
3W
4W
5W
N
øB
FVG
FVG
FVG
FVG
FVG
FVG
8.9 35.5
11.0 43.7
14.0 52.5
17.0 61.5
22.0 71.5
34.0 100.0
øA
FVG
Straight plug, key (G) or keys (A, B or L),
oversize cable collet
1)
Reference
~L
~M
S3
S2
S1
N
Dimensions (mm)
A
19.3
23.5
27.8
34.3
B
L
M
48.3
56.0
67.0
91.5
N
14.0
15.5
16.5
17.5
S1
18
22
26
32
S2
12
15
19
30
S3
12
15
19
32
Model
FVG
FVG
FVG
FVG
Series
1W
2W
3W
4W
øB
øA
14.5 56.5
17.0 68.5
22.0 80.5
36.0 105.5
Note:
1)
correspond to K type of collet, the fitting of oversize collets onto this
model allows them to be fitted to the cables that can be accommodated by
the next housing size up (see page 12).
FVG
Straight plug, key (G) or keys (A, B or L),
cable collet and nut for fitting a bend relief
1)
Reference
Model
~L
S3
~M
S1
Dimensions (mm)
A
17.2
19.3
23.5
27.8
34.3
B
8.9
11.0
14.0
17.0
22.0
L
35.5
43.7
52.5
60.5
71.5
M
30.8
35.5
43.0
46.9
57.5
N
13.5
14.0
15.5
16.5
17.5
S1
16
18
22
26
32
S3
7
9
12
15
19
Series
0W
1W
2W
3W
4W
N
FVG
FVG
FVG
FVG
FVG
øA
øB
Note:
1)
to order, add a «Z» at the end of the reference.
The bend relief must be ordered separately (see pages 141 and 142 of the
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