Low Voltage
4
Wire Size/AWG
32 - 28
Gender
Reverse Gender
Plug
Plug - Straight
Locking system
Ratchet
Jacket cable outside diameter [mm]
2.80 - 5.60 mm

Electrical Configuration

Contact Termination Low voltage
Crimp
R (max)
8.7 mOhm
Insert configuration value
MM.304 - 4 Low Voltage
Insulator
L: PEEK
Rated current
2 Amps
Contact retention
12 N
Contact Type
Crimp
Max. Conductor
0.09 mm^2 (AWG 28)
Min. Conductor
0.035 mm^2 (AWG 32)
Bucket Dia.
0.45 mm (0.018in)
Contact Dia.
0.5 mm (0.02in)
Low Voltage
4
Wire Size/AWG
32 - 28
Gender
Reverse Gender

Form & Material

Shell style / Model id
FG - Straight plug with arctic grip
Plug
Straight
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=155, gamma=50, plug: female contacts, receptacle: male contacts)
Weight
5.24 g

Environment

Technical domain
Motorsport, Security and Defence, Transportation, Aerospace and UAV
Environmental protection
IP68
Minimal temperature
-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

Cable termination protection
For backshell MIL-DTL-38999M
Fixation type
MIL-DTL-38999M
Jacket cable outside diameter [mm]
2.80 - 5.60 mm
icon pdf
M series catalog
icon pdf
Solutions Selection Guide
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.