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O VE LIM

VE R I

M SI NA

BE O R

R N Y

uNIPOLE & MuLtIPOLE

cONNEctORS

LEMO unipole and multipole connectors

This catalogue gives the complete description of LEMO unipole and multipole type connectors. The LEMO manufacturing

programme has been extended to almost 40 series divided into 7 product families with specific mating and environmental

characteristics. Each series includes a wide variety of plug, socket, coupler and bridge plug models, available in contact

configurations adapted to all round cables, including up to 114 conductors, and a maximum diameter of 30 mm.

Watertight and vacuumtight models are also available. Since LEMO connectors are perfectly screened and designed to

guarantee very low resistance to shell electrical continuity, they are particularly adapted to applications where electro-

magnetic compatibility (EMC) is important.

Table of Contents

3 steps to select the right connector................................................................................................................................................................................

B Series (indoor, keyed)

Part Numbering system ......................................................................................................................................................................................... 13

Metal Housing models............................................................................................................................................................................................ 14

Elbow socket models..............................................................................................................................................................................................25

Plastic housing models...........................................................................................................................................................................................28

Watertight or vacuumtight models.......................................................................................................................................................................... 30

Bridge models........................................................................................................................................................................................................ 34

Threaded-latching models...................................................................................................................................................................................... 35

Alignment Key and Polarized Keying System........................................................................................................................................................ 36

K Series (outdoor, keyed)

Part Numbering system.......................................................................................................................................................................................... 38

Alignment Key and Polarized Keying System........................................................................................................................................................ 49

T Series (outdoor, keyed)

Part Numbering system.......................................................................................................................................................................................... 52

Chrome-plated Housing models............................................................................................................................................................................. 53

Plastic housing models, alignment Key and Polarized Keying System..................................................................................................................56

B, K and T Series

Insert configuration, Housings, Insulators, Contacts, Collets, Variant..................................................................................... 57

S Series (indoor, stepped insert)

E Series (outdoor, stepped insert)

Part Numbering system.......................................................................................................................................................................................... 94

L Series (outdoor, stepped insert)

Part Numbering system........................................................................................................................................................................................ 104

Alignment Key and Polarized Keying System...................................................................................................................................................... 109

S, E and L Series

Insert configuration, Housings, Insulators, Contacts, Collets, Variant................................................................................... 111

2G Series (indoor, keyed)...............................................................................................................................................................................................134

2C Series (indoor, stepped insert).................................................................................................................................................................................141

M Series (outdoor, keyed)..............................................................................................................................................................................................

149

F Series (outdoor, keyed)...............................................................................................................................................................................................

150

Spare parts......................................................................................................................................................................................................................

152

Accessories.....................................................................................................................................................................................................................

160

Tooling.............................................................................................................................................................................................................................

173

Panel cut-outs and PCB drilling pattern.......................................................................................................................................................................

179

Cable assembly

(B, K, T, S and E series)....................................................................................................................................................................... 191

Technical characteristics...............................................................................................................................................................................................

205

www.lemo.com

Precision modular connectors to suit your application

Over 75’000 connectors

Since it’s creation in Switzerland in 1946 the LEMO Group has been recognized as a global leader of circular Push-Pull

connectors 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.

The modular design of the LEMO range provides over 75’000 connectors from miniature ø 3 mm to ø 50 mm, capable of

handling 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

markets, including medical devices, test and measurement instruments, machinery, audio video broadcast, telecommuni-

cations and military.

This self-latching system is renowned worldwide for its easy and quick mating and unmating features. It provides absolute

security against vibration, shock or pull on the cable, and facilitates operation in a very limited space.

LEMO’s Push-Pull Self-Latching Connection System

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

single axial pull on the outer release sleeve.

This first disengages the latches and then withdraws

the plug from the socket.

UL Recognition

CE marking

RoHS

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 recognized.

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.

LEMO connector specifications conforms the requirements of the RoHS directive (2011/65/EU) of the European Parlia-

ment and the latest amendments. This directive specifies the restrictions of the use of hazardous substances in electrical

and electronic equipment marketed in Europe.

www.lemo.com

3 steps to select the right connector

Step 1: Select connector series

Select the appropriate LEMO connector series according to the environmental parameters that will affect your device

or cable such as indoor, outdoor, temperature range, ingress protection of the mated connector and of your device.

Use the table shown on page 4.

Part number coding

B, K, T, S, E, L, G or C

Step 2: Select connector size

Use the section (mm

) or the AWG of your cable wire to select the optimal contact diameter (values vary between

solder, crimp or print contact), see page 8.

Use this optimal contact diameter to determine the right connector size as well as the insert configuration, see page 6.

Part number coding

0, 1, 2, 3, 4, 5 or 6

Step 3: Complete the part number

Now that you know the series, as well as the insulator configuration, complete the part numbering system with the help

of the following table.

Part number coding

Model

B Series (indoor, keyed)

K Series (outdoor, keyed)

T Series (outdoor, keyed)

S Series (indoor, stepped insert)

E Series (outdoor, stepped insert)

L Series (outdoor, keyed, stepped insert)

G Series (indoor, keyed)

C Series (indoor, stepped insert)

105

135

142

Series

105

135

142

Insert

configuration

111

137

145

Housing

material

120

137

146

Insulator

material

120

134

141

Contact

120

137

146

Collet

123

127

129

138

146

Variant

130

138

147

Note:

Figures in the above table refer to the catalogue pages.

www.lemo.com

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