783 | Dual Entry Y Adaptor Available in brass, nickel plated brass, stainless steel

Internationally Approved, Explosive Atmosphere Cable / Conduit Accessory

• Provides an opportunity for two entries
• As standard one male & two female entries
• Supplied with male or female threads upon request
• All angles 120°
• Protects cables from excessive bending stress
• General purpose / industrial version available
• Can be supplied with thread conversion upon request
• -60°C to +200°C
• Globally marked, IECEx, ATEX & EAC (TC RU)
• Can be used with 737 (not Ex d direct entry applications)

Design Specification BS 6121:Part 1:1989, IEC 62444, EN 62444
Enclosure Protection IK10 to IEC 62262 (20 joules) Brass & Stainless Steel Only
ATEX Certificate CML 18ATEX1306U
UKEX Certificate CML 21UKEX1216U
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
Compliance Standards EN 60079-0,1,7,31
IECEx Certificate IECEx CML 18.0171U
UkrSEPRO CU 19.0370X
CCOE / PESO (India) Certificate Ex d: P548696, Ex e: P533772
Code of Protection Ex db IIC Gb, Ex eb IIC Gb, Ex ta IIIC Da
Ex db I Mb, Ex eb I Mb
Compliance Standards IEC 60079-0,1,7,31
EAC Certificate (Formerly GOST R, K & B) C-GB.A07.B.02491/20
Ingress Protection Rating ** IP66, IP67 & IP68 (when fitted with CMP sealing accessories)
Available Materials Brass, Electroless Nickel Plated Brass, Stainless Steel
NEPSI Certificate GYJ18.1258U
ECAS Certificate 24-03-106290/E24-03-110155/NB0007

e.g. 783 - D - M - 2 - M - M - 2 - F - M - 2 - F - 5
= Dual Certified Ex d & Ex e - M20 (M) x M20 (F) x M20 (F) - Nickel Plated Brass

* Any combination of Male (M) / Female (F) threads is available e.g.
(M) X (M) X (M), (F) X (F) X (F), (M) X (F) X (M)

Marked with ATEX, IECEx and EAC (TC RU) certification details as standard
Other thread variations are available upon request
Please refer to ordering guide tables in ‘Ordering Accessories’ for further information

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Product Selection Table

Diameter '‘C'’
Thread 1 ‘'A'’
(Entry Thread)
Thread 2 '‘B’'Thread 3 '‘B’'Thread Length ‘'E’'Protrusion Length ‘'D'’Protrusion Length ‘'F’'Width
783DM2MM2FM2F0.58M20M20M200.591.892.870.98 - 1.06
783DT1MT1FT1F0.581/2' NPT1/2' NPT1/2' NPT0.781.692.870.98 - 1.06
783DM3MM3FM3F0.74M25M25M250.591.893.031.18 - 1.26
783DT2MT2FT2F0.743/4" NPT3/4" NPT3/4" NPT0.801.893.031.18 - 1.26
783DM4MM4FM4F1.02M32M32M320.592.223.641.46 - 1.54
783DT3MT3FT3F1.021" NPT1" NPT1" NPT0.982.223.641.46 - 1.54
All dimensions shown are in inches unless otherwise stated
Diameter ‘'C'’
Thread 1 ‘'A’'
(Entry Thread)
Thread 2 ‘B’Thread 3 '‘B’'Thread Length ‘'E’'Protrusion Length ‘'D’'Protrusion Length ‘'F'’Width
783DM2MM2FM2F14.7M20M20M2015.048.073.025 - 27
783DT1MT1FT1F14.71/2' NPT1/2' NPT1/2' NPT19.943.073.025 - 27
783DM3MM3FM3F18.9M25M25M2515.048.076.930 - 32
783DT2MT2FT2F18.93/4" NPT3/4" NPT3/4" NPT20.248.076.930 - 32
783DM4MM4FM4F25.9M32M32M3215.056.592.537 - 39
783DT3MT3FT3F25.91" NPT1" NPT1" NPT25.056.592.537 - 39
All dimensions shown are in millimetres unless otherwise stated

Technical Illustration

Additional Information

Cable Gland Material Selection

There are numerous different grades of materials used for the production of cable glands by different manufacturers and it is important to identify the precise grades used before proper and effective evaluation can be achieved. Given the range of potential environments, including indoor and outdoor, the compatibility and the selection of material used in the production of cable glands is very important.

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The Use of Multiple Adaptors in a Single Entry for Ex Equipment

The IEC 60079-1 standard allows the use of threaded adaptors and reducers for direct entry into Flameproof type ‘d’ enclosures. In future, the female connection threads of the adaptors and/or reducers will be limited to metric or NPT only. When using thread adaptors and reducers or reducer bushings, only one is permitted for any single cable entry of Flameproof type ‘d’ (Ex d) equipment.

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Installation Accessories

Depending upon the specific form of protection of the main equipment it may be necessary (and often advisable) to fit a sealing washer at the cable entry interface to maintain the appropriate Ingress Protection level of the enclosure. For Increased Safety (Ex e) equipment, or Increased Safety terminal chambers included in Ex de (or Ex db eb) equipment, a sealing washer is recommended to maintain the minimum ingress protection rating, and should always be fitted.

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