767 | Dome Stopper Plug Available brass, nickel plated brass, aluminium, stainless steel & nylon

Dome Head Stopper Plug, Globally Approved, Explosive Atmosphere Cable / Conduit Accessory

• Provides means of blanking unused cable entries
• Temporary or permanent
• General purpose / industrial version available
• Equipment interface o-ring seal available
• Nylon Ex e only version available (-20°C to +60°C)
• -60°C to +200°C (metallic versions)
• Globally marked, IECEx, ATEX, cCSAus and UL (metallic versions only)
• Nylon stopper 717 / 717e to be used for sizes M20, M25, M32, 1⁄2″, 3⁄4″ and 1″

DescriptionAllen key recessMetallicNon-Metallic
Ex dEx eIndustrialEx eIndustrial
747 Recessed Non-Tamper Proof Type 'A'YYYYYY
747 Recessed Tamper Proof Type 'B'YYYYYY
757 Hexagon HeadNYYYYY
757 Hexagon Head c/w 'O' ring sealNYYYYY
767 Dome HeadYYYYYY
767 Dome Head c/w 'O' ring sealYYYYYY
717 UniversalYNNNYY

e.g. 747 – D – A – M – 3 – 1
= Dual Certified Ex d & Ex e- Type A – M25 – Aluminium

For Tamper-Proof Type B Stopper Plugs please substitute the letter A with the letter B in the Ordering Reference list opposite.

Other Thread Variations are available on request.

For further information on ordering please contact a member of the CMP team.


Design Specification BS 6121:Part 1:1989, IEC 62444, EN 62444
Enclosure Protection IK10 to IEC 62262 (20 joules) Brass & Stainless Steel Only
Accessories Included (781E only) 2020322313001727
ATEX Certificate CML 18ATEX1320X
Code of Protection II 2G Ex db IIC Gb, Ex eb IIC Gb, II 1D Ex ta IIIC Da
IM2 Ex db I Mb, Ex eb I Mb
(II 2G Ex eb IIC Gb, II 1D Ex ta IIIC Da only on Nylon version)
Compliance Standards EN 60079-0,1,7, 31
IECEx Certificate IECEx CML 18.0177X, IECEx SIM 15.0002X
Code of Protection Ex db I Mb, Ex eb I Mb; Ex db IIC Gb, Ex eb IIC Gb, Ex ta IIIC Da
(Ex eb IIC Gb, Ex ta IIIC Da only
on Nylon version)
Compliance Standards IEC 60079-0,1, 7, 31
cCSAus Certificate 1055233 (Metallic versions only)
Code of Protection Class I, Groups A, B, C and D; IP66, 67, 68; Enclosure Type 4X; Class II groups E, F and G; Class III
Ex de II, Class I, Zone 1, AEx de II;
Compliance Standards C22.2 No. 0, 0.5, 30,94,CAN/CSA E60079-0, 1, 7, UL50 Edition 11, UL1203 Edition 4,
UL 60079-0, 1, 7
UL Certificate E214221(Metallic versions only)
Code of Protection Class I, Groups A,B,C,D; Class II Groups E,F,G; Class III
Compliance Standards UL 1203
EAC Certificate (Formerly GOST R, K & B) TC RU C-GB.AA87.B.00487
GOST R Certificate POCC.GB.HA46.H00140
KCs Certificate 14-GA4BO-0248X
CCC Certificate 2020322313001727
CCOE / PESO (India) Certificate P444949
INMETRO Approval TÜV 12.1333X
RETIE Approval 03866
UkrSEPRO CU 19.0372X
SANS MS-XPL21804 21.0006X
Marine Approvals LRS: 01/00173, DNV: TAE00000Y, ABS: 17-LD1619350-PDA, BV: 43180/A1 BV
Continuous Operating Temperature -60°C to +200°C (Metallic), -20°C to +60°C (Nylon)
Ingress Protection Rating ** IP66 or IP68 when fitted with an ‘O’ ring
Available Materials Brass, Electroless Nickel Plated Brass, Aluminium, Stainless Steel, Nylon

** When CMP installation accessories are used. Refer to Maintaining a Seal for further information.
*** IP68 tested to a minimum depth of 30 metres for 12 hours, alternative depths / durations can be provided upon request

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Product Selection Table

Click here to view how to order

Ordering ReferenceThread SizeMinimum Thread LengthHead Diameter 'A'Protrusion Length 'B'Allen Key
Size A/F
767DM1M16 X 1.50.590.870.22M8
767DM2M20 X 1.50.591.060.22M10
767DM3M25 X 1.50.591.180.22M10
767DM4M32 X 1.50.591.420.22M10
767DM5M40 X 1.50.591.810.22M10
767DM6M50 X 1.50.592.170.22M10
767DM7M63 X 1.50.592.680.22M10
767DM8M75 X 1.50.593.150.22M14
767DM9M90 X 2.00.943.740.22M14
767DM10M100 x 2.00.944.250.22M14
Dimensions displayed in inches unless otherwise stated
Ordering ReferenceThread SizeMinimum Thread LengthHead Diameterq AProtrusion Length 'B'Allen Key
Size A/F
767DM1M16 X 1.515.022.05.5M8
767DM2M20 X 1.515.027.05.5M10
767DM3M25 X 1.515.030.05.5M10
767DM4M32 X 1.515.036.05.5M10
767DM5M40 X 1.515.046.05.5M10
767DM6M50 X 1.515.055.05.5M10
767DM7M63 X 1.515.068.05.5M10
767DM8M75 X 1.515.080.05.5M14
767DM9M90 X
767DM10M100 x 2.024.0108.05.5M14
Dimensions displayed in millimeters unless otherwise stated
If a nylon stopper is required for sizes M20, M25, M32, 1⁄2", 3⁄4" and 1" please order717 or 717e.

Technical Illustration

Additional Information

Cable Gland & Enclosure Material Selection ‘Quick Guide’

The specific conditions of any installation will play a major part in the selection of the cable gland material, taking into account the level of environmental exposure along with the nature of the enclosure and cable armour or braid material.

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ATEX Insights

Comprehensive information on the use and application of the Directive ATEX 2014/34/EU, which became mandatory on 20th April 2016 can be obtained from the europa.eu web resources. The third edition of the ATEX 2014/34/EU guidelines were issued in December 2017 and form an important reference point for member states to follow; they can be found here :  http://ec.europa.eu/DocsRoom/documents/41403/attachments/1/translations/

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Material Differences

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