Number of contacts Low Voltage
8
Wire Size/AWG
26 - 22
Gender
Standard
Socket / Receptacle
Socket / Receptacle - Fixed Panel Front Mounted
Locking system
Ratchet
Jacket cable outside diameter [mm]
4.85 - 9.70 mm
Size
1M

Electrical Configuration

Contact Termination Low voltage
Crimp
R (max)
6.1 mOhm
Insert configuration value
1M.308 - 8 Low Voltage
Insulator
L: PEEK
Rated current
5 A
Test voltage (kV rms) Contact-contact
1.3
Test voltage (kV rms) Contact-shell
1.1
Contact retention
22 N
Contact Type
Crimp
Max. Conductor
0.34 mm^2 (AWG 22)
Min. Conductor
0.14 mm^2 (AWG 26)
Bucket Dia.
0.8 mm (0.031in)
Contact Dia.
0.7 mm (0.028in)
Number of contacts Low Voltage
8
Wire Size/AWG
26 - 22
Gender
Standard

Form & Material

Shell style / Model id
ED - Fixed receptacle with square flange
Socket / Receptacle
Fixed Panel Front Mounted
Housing material
Aluminium (nickel plated [SAE AMS QQ N 290], anthracite color) shell and nut, other pieces bronze/brass
Locking system
Ratchet
Keying
3 keys (beta=165, gamma=30, plug: male contacts, receptacle: female contacts)
Weight
6.3 g

Environment

Technical domain
Motorsport, Security and Defence, Transportation, Aerospace and UAV
Environmental sealing (IP rating)
IP68
Temperature range
-20°C / +200°C
EMI Shielding EIA 364-66A
>= 80 dB (1 GHz), >=70 dB (3 GHz), >= 58 dB (6 GHz), >= 40 dB (10 GHz)
Gunfire vibration
25 Hz - 2000 Hz, 3 axis (Apache helicopter)
Humidity (max)
21 days at 95%
Lighting strike EIA 364-76
10K amps - 6 times
Shock Resistance
300 g [ 3 ms]
Thermal shock
5 cycles: -65°C to +150°C
Vibration-Random
37.8 g rms - 3 axes, 4 hr amb [50 Hz - 2000 Hz]
Vibration-Sine
30 g, 3 axes, 12 hr [10 Hz - 2000 Hz]
Salt Spray Corrosion
max. 48 hr

Cable fixation

Jacket cable outside diameter [mm]
4.85 - 9.70 mm

Technical plans

https://web.lemo.com/img/Illustrations/m/types/1m_308_f.gif
https://web.lemo.com/img/Illustrations/m/models/edn.gif
https://web.lemo.com/img/Illustrations/m/keys/n.gif

Dimensions

A B C G H K Ls Lr N P SV
mm. 23.8 5.95 14.2 12.8 12.9 1.5 18.3 18.3 18.4 5.3 3.3
in. 0.94 0.23 0.56 0.5 0.51 0.06 0.72 0.72 0.72 0.21 0.13
icon pdf
Solutions Selection Guide
icon pdf
M series catalog
icon pdf
Product brief - High-speed data transfer
icon pdf
Product brief - M series High Power
icon pdf
Product brief - M series Multi coax solution
Other documents
M - Rugged Ratchet coupling
M - Rugged Ratchet coupling
Harsh environments (IP68)
Ratchet coupling, strong resistance to shocks and vibrations
Stealth Anthracite coating
Light & compact construction
Robust Multi-Keying system with color coding
Main Features
Harsh environments (IP68)
Ratchet coupling, strong resistance to shocks and vibrations
Stealth Anthracite coating
Light & compact construction
Robust Multi-Keying system with color coding
Cable Assembly UK
Cable assembly service

Receive the same high quality cable assemblies that you've come to expect from LEMO Push-Pull connectors.

Discover
Contact us
t Contact-us-1576x512.jpgt

Do you
have a 
challenging 
project?

No matter how harsh the environment may be, LEMO has a solution ready for you to implement today.

If not, we promise to relentlessly innovate and develop one for you. 
Please take a moment to reach out and describe your project, technical specifications and deadlines. We are standing by and looking forward to hearing from you - and adding your business to our thousands of longstanding satisfied customers, partners and employees - very soon.