M.x. Threaded line bushings

Line bushings are used for connecting of electrical respectively optical circuits of two separate parts of ex equipment, usually between instrument part of flameproof enclosure and explosion-protected terminals part, eventually between two flameproof enclosures. Explosion-proof line bushings type M.x. are designed as Ex component (or stand-alone Ex device), intended for installation in flameproof enclosures of explosion-proof electrical devices. Line bushings casing creates together with the wall of flameproof enclosure a flameproof enclosure threaded joint

Specific make of line bushings is given by technical specification on the basis of which we will propose the optimal solution.

K - coaxial Threaded line bushings with coaxial cables

M (1) K (2) x (3) (4) / (5)

  • (1)  Thread size - 10, 12, 16, 24, 25, 32, 33, 36, 38, 42
  • (2)  Cables quantity - 1 to 45
  • (3)  Impedance - 50, 75, 95 Ω
  • (4)  Cable length L1 [mm] (hexagon side)
  • (5)  Cable length L2 [mm] (thread side)

Order code example: M24K2x50 200/200

V - wire Threaded line bushings with stranded conductors

M (1) V (2) x (3) (4) (5) / (6)

  • (1)  Thread size - 10, 12, 16, 24, 25, 32, 33, 36, 38, 42
  • (2)  Conductor quantity - 1 to 45
  • (3)  Conductor cross-section - 0,35 to 70 mm2
  • (4)  Conductor color and quantity
  • (5)  Cable length L1 [mm] (hexagon side)
  • (6)  Cable length L2 [mm] (thread side)

Order code example: M36V7x2,5 4bk+3bu 300/500

O - optical Threaded line bushings with optical cables

M (1) O (2) x (3) (4) / (5)

  • (1)  Thread size - 10, 12, 16, 24, 25, 32, 33, 36, 38, 42
  • (2)  Cables quantity - 1 to 45
  • (3)  Thread type - 9/125, 50/125, 62.5/125, 100/125, 200/300 μm
  • (4)  Cable length L1 [mm] (hexagon side)
  • (5)  Cable length L2 [mm] (thread side)

Order code example: M36O2x9/125 150/300

P - flat wire Threaded line bushings with flat conductor

M (1) P (2) x (3) (4) / (5)

  • (1)  Thread size - 10, 12, 16, 24, 25, 32, 33, 36, 38, 42
  • (2)  Flat conductor quantity - 4 to 48
  • (3)  Conductor cross-section - 28, 26, 24, 20, 18 AWG
  • (4)  Cable length L1 [mm] (hexagon side)
  • (5)  Cable length L2 [mm] (thread side)

Order code example: M42P48x18 200/200

S - bolt Threaded line bushings with bolt

M (1) S (2) x (3)

  • (1)  Thread size - 24, 25/32, 33
  • (2)  Bolt quantity - always 1
  • (3)  Bolt thread - M6, M8/M10, M12

Order code example: M32S1xM12

Technical data

Basic overview

  • Explosion protection I M2 Ex db (eb) I Mb / II 2G Ex db (eb) IIC Tx Gb
  • Zone 1, 2 - SNM 1, 2
  • Ambient temperature -60°C up to +115°C
  • * This is the maximum range of operating temperatures for all types of explosion-proof bushings. The actual range is given by the type of wires or cables used.
Files to download

User manuals

User manual_M.x._CZ
Threaded line bushings - Ex devices
pdf 366 KB Download
User manual_D.x._M.x._CZ
Cylindrical and threaded line bushings - Ex components
pdf 970 KB Download

Certificates

FTZÚ 10 ATEX 0022X_M.x._CZ
Threaded line bushings - Ex devices
pdf 5584 KB Download
FTZÚ 10 ATEX 0022X_M.x._EN
Threaded line bushings - Ex devices
pdf 5323 KB Download
FTZÚ 07 ATEX 0019U_D.x._M.x._CZ
Cylindrical and threaded line bushings - Ex components
pdf 1632 KB Download
FTZÚ 07 ATEX 0019U_D.x._M.x._EN
Cylindrical and threaded line bushings - Ex components
pdf 1546 KB Download

Declarations of Conformity

Declaration of conformity_M.x.
Threaded line bushings - Ex devices
pdf 88 KB Download
Certificate of Conformity_D.x._M.x.
Cylindrical and threaded line bushings - Ex components
pdf 83 KB Download

This website uses cookies to ensure you get the best experience on our website.