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- M - Rugged Ratchet coupling
- BMK.2M.200.CAZ
Form & Material
- Shell style / Model id
- BMK - Blanking caps, large washer for fixed sockets(knurled grip)
- Housing material
- Brass (chrome plated [SAE AMS 2460]) shell and collet nut, nickel plated [SAE AMS QQ N 290] brass latch sleeve and mid pieces
- Keying
- 3 keys (alpha=42, gamma=30, plug: male contacts, receptacle: female contacts)
- Colour
- Grey
- Weight
- 6.88 g
Environment
- Technical domain
- Motorsport, Security and Defence, Transportation, Aerospace and UAV
- Environmental sealing (IP rating)
- IP68
- Temperature range
- -55°C / +135°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
- >1000 hr
Dimensions
A | C | L | N | P | X | |
---|---|---|---|---|---|---|
mm. | 17.6 | 17.2 | 17.2 | 21 | 23.4 | 85 |
in. | 0.69 | 0.68 | 0.68 | 0.83 | 0.92 | 3.35 |
M - Rugged Ratchet coupling

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

Contact us

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challenging
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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.