PX2KX | Ex eb, Ex db, Ex nR & Ex ta | Explosive Atmosphere Barrier Cable Gland For all types of Braid & Tape Armoured Cables

Globally Approved, Explosive Atmosphere Barrier Cable Gland 

• Metal-to-metal armour clamping
• Direct & remote installation
• Compound barrier type flameproof seal
• Controlled outer ‘load retention’ seal
• Unique OSTG prevents overtightening
• Integral protected deluge seal
• -60°C to +85°C
• Class I Zone 1, 21 and Zone 2, 22 Class I Division 1 & 2 ABCD
• Globally marked, IECEx, ATEX, UL & cCSAus
• Superior EMC performance
• Compound barrier seals around internal cable cores after removing any inner cable sheath/bedding; completely eliminating any risk of coldflow

† Grooved Cone (X) is predominantly used for Wire Braid (e.g. GSWB, TCWB), Steel Tape Armour (STA, DSTA) and Aluminium Strip Armour (ASA) but is also suitable for Single Wire Armour (SWA), Aluminium Wire Armour (AWA) and Pliable Wire Armour (PWA) if the range is outside that of the Stepped Cone (W).

Note: Grooved Cone (X) dimensions shown in the Cable Gland Selection Table below are for a double wire strand of braid armour cables. Tapes can also be doubled over. For cables that have only a single layer of armour such as SWA the clamping range should be used as shown in the table below.

Design Specification BS 6121:Part 1:1989, IEC 62444, EN 62444
Mechanical Classifications * Impact = Level 8, Retention = Class B
Enclosure Protection IK10 to IEC 62262 (20 joules) Brass & Stainless Steel only
Electrical Classifications * Category B (Category A when used with braid, tape or pliable wire armour cables)
ATEX Certificate CML 18ATEX1325X, CML 18ATEX4317X
UKEX Certificate CML 21UKEX1214X, CML 21UKEX4215X
Code of Protection II 2G, II 1D, Ex db IIC Gb, Ex eb IIC Gb, Ex ta IIIC Da,
II 3G Ex nR IIC Gc, IM2 Ex db I Mb, Ex eb I Mb
Compliance Standards EN 60079-0,1,7,15,31
IECEx Certificate IECEx CML 18.0182X
Code of Protection Ex db IIC Gb, Ex eb IIC Gb, Ex nR IIC Gc, Ex ta IIIC Da, Ex db I Mb, Ex eb I Mb
Compliance Standards IEC 60079-0,1,7,15,31
cCSAus Certificate (20s16 - 100) 2288626
CSAus Code of Protection*** Class I, Div. 1, 2 Groups A, B, C and D; Class II, Div. 1, 2 Groups E, F and G; Class III, Div. 1, 2; Type 4X: Oil Resistant II:
Class I, Zone 1 AEx d IIC Gb, AEx e IIC Gb, Class I, Zone 2 AEx nR IIC Gc,
Class I, Zone 20 AEx ta IIIC Da
CSAus Code of Protection*** Class I, Div. 1, 2 Groups A, B, C and D; Class II, Div. 1, 2 Groups E, F and G; Class III, Div. 1, 2; Type 4X: Oil Resistant II:
Ex d IIC Gb, Ex e IIC Gb, Ex nR IIC Gc, Ex ta IIIC Da
Compliance Standards CAN/CSA-C22.2 No 0,18,25,30,94,174, CAN/CSA-E60079-0,1,7,15,31 CAN/CSA-E61241-1-1 Part
1-1, ANSI/UL 514B Ed 5, ANSI/UL 50 Ed 11, ANSI/UL 2225 Ed 4, UL60079
UL Certificate (20s16 - 100) E201187
Code of Protection Class I Div 1,2, Groups A,B,C,D, Class II Div 1,2, Groups E,F,G
Compliance Standards UL 2225, CSA C22.2 No 174
EAC Certificate (Formerly GOST R, K & B) C-GB.A07.B.04595/22
UkrSEPRO CU 19.0371X
KCs Certificate 14-GA4BO-0252X
CCOE / PESO (India) Certificate Ex d: P548696, Ex e: P533772 Ex nR: P548695
CCC Certificate 2020322313003190
INMETRO Certificate TÜV 12.2073X
RETIE Certificate 03866
Marine Approvals LRS: 01/00172, DNV: TAE00000Y, ABS: 20-LD1948801-PDA, BV: 43180/A1BV
Ingress Protection Rating ** IP66, IP67 & IP68
Deluge Protection Compliance DTS01 : 91
Cable Gland Material Electroless Nickel Plated Brass, Brass,   Stainless Steel, Aluminium
Seal Material CMP SOLO LSF Halogen Free Thermoset Elastomer / Epoxy Barrier Compound
Cable Type Screened Flexible (EMC) Wire Braid (e.g. CY / SY), Pliable Wire Armour (PWA), Steel Tape
Armour (STA), Wire Braid Armour (e.g. SWB), Aluminium Strip Armour (ASA), Armoured
& Jacketed***
Armour Clamping Detachable Compound Tube / Cone & AnyWay Universal Clamping Ring
Sealing Area(s) Inner Compound Barrier & Outer Sheath
Sealing Technique Unique CMP ‘LRS’ Outer Seal (Load Retention Seal)
Optional Accessories Locknuts, Earth Tags, Serrated Washers, Entry Thread Seals, Shrouds,Ingress Discs
Optional Installation Tools Spanners

* Mechanical & Electrical Classifications applied as per IEC 62444 & EN 62444
** When CMP installation accessories are used. Refer to Maintaining a Seal for further information.
***Where the cable is permitted by code (NEC and/or CEC)
*** IP68 tested to a minimum depth of 30 metres for 12 hours, alternate depths / durations can be provided upon request

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Product Selection Table

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Combined Ordering Reference (*Nickel Plated Brass NPT) Available Entry Threads 'C'
(Alternative Metric Thread Lengths Available)
Number of CoresDiameter Over Conductors
Cable Bedding Diameter 'G'Overall Cable Diameter 'B'Armor Range
Grooved Cone (X)
Across Flats 'D'Across Corners 'D'Protrusion Length 'F'ShroudCable
Gland Weight (oz)
SizeTypeOrdering SuffixNPTNPT
Thread Length (NPT) 'E'MinMax
32PX2KX1RA5331"1 ¼"M320.98380.930.940.931.340.020.051.811.992.95PVC1120.11
40PX2KX1RA5341 ¼"1 ½"M401.01591.
50SPX2KX1RA5351 ½"2"M501.03891.441.451.391.840.020.062.362.603.03PVC1831.75
50PX2KX1RA5362"2 ½"M501.061151.611.631.592.
63SPX2KX1RA5362"2 ½"M631.061151.891.881.802.340.020.062.953.253.14PVC2349.03
63PX2KX1RA5372 ½"3"M631.571152.
75SPX2KX1RA5372 ½"3"M751.571402.362.372.322.840.020.063.543.903.42PVC2873.72
75PX2KX1RA5383"3 ½"M751.631402.532.532.633.
90PX2KX1RA5393 ½"4"M901.691402.972.983.003.560.030.064.504.954.02PVC32130.87
100PX2KX1RA5393 ½"4"M1001.692003.293.383.393.990.
*Note : For material options please change the suffix in the ordering reference ; Brass (no suffix required), Nickel Plated Brass “5” (as standard), 316 Grade Stainless Steel “4”, Copper Free Aluminum “1”
For NPT options please change the following digits after the material suffix ; ½” = 31, ¾” = 32, 1” = 33, 1 ¼” = 34, 1 ½” = 35, 2” = 36, 2 ½” = 37, 3” = 38, 3 ½” = 39, 4” = 310 (Brass requires prefix “0”)
Examples: 32PX2KX1RA534 = Nickel Plated Brass 1 ¼” NPT, 50SPX2KX1RA035 = Brass 1 ½” NPT, 25PX2KX1RA432 = Stainless Steel ¾” NPT, 20PX2KX1RA5 Nickel Plated Brass M20
Dimensions in inches unless otherwise stated
Cable Gland SizeAvailable Entry Threads 'C' (Alternate Metric Thread Lengths Available)Number of CoresDiameter Over Conductors
Armour RangeAcross
Length 'F'
Combined Ordering Reference
(*Brass Metric)
StandardOptionGrooved Cone (X)
MetricThread Length (Metric) 'E'NPTThread Length
(NPT) 'E'
32M3215.01'25.01 ¼"3823.623.923.733.
40M4015.01 ¼'25.61 ½"5930.030.327.940.40.41.655.060.575.040PX2KX1RAPVC150.80
50SM5015.01 ½'26.12"8936.636.935.
50M5015.02'26.92 ½"11541.041.340.453.00.61.670.077.077.050PX2KX1RAPVC211.19
63SM6315.02'26.92 ½"11547.948.445.659.40.61.675.082.579.763SPX2KX1RAPVC231.39
63M6315.02 ½'39.93"11553.754.054.665.80.61.680.088.080.363PX2KX1RAPVC251.41
75SM7515.02 ½'39.93"14059.960.
75M7515.03'41.53 ½"14064.264.266.778.40.61.6100.0110.088.375PX2KX1RAPVC302.54
90M9020.03 ½'42.84"14075.375.676.
100M10020.03 ½'42.84"20085.685.986.1101.40.81.6127.0139.7114.0100PX2KX1RALSF334.31
Dimensions displayed in millimeters unless otherwise stated

Technical Illustration

Additional Information

NEMA 250 & IEC 60529

The table included on this page is provided for comparison purposes between typical NEMA 250 and IEC 60529 ratings.

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Sources of Ignition

Ignition of a flammable mixture, or explosive atmosphere, may occur following an arc, spark or hot surface during the use of electrical as well as nonelectrical equipment. Arcs can result from the discharge of stored energy or from switching contacts.

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Sources of Release & Grades of Release

Sources of release may originate from almost anywhere in the process or storage area of an explosive atmosphere site. Flammable materials may be released from pumps, pipes, flanges, valves, sampling points, or other similar equipment. The release may be caused for example by either process seal failure, leakage to flanged joints, ruptures to pipe work, spillage from over filling of floating roof storage tank (e.g. following faulty level switch reading), other mechanical failure, or an inadvertent operations error.

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Cable Glands Permitted Under NEC & CEC Wiring Rules

In the IEC world, there are essentially two different types of cables, armored and unarmored, whilst the test parameters for the cable gland varies, depending on the cable type, the cable glands themselves are not required to be tested on cables, but are instead tested on steel mandrels. Conversely, in the NEC and CEC world, cable glands are tested on cables, with very different test parameters applicable to the different types of armored and unarmored cables. Before selecting a cable gland for use in a classified location, the cable must be permitted and approved for the location and then the cable gland must also be listed for use on that specific type of cable.

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Certification to IEC 60079 Based Standards

There are some subtle differences when selecting cable glands, or cable connectors for use in Zones. This is because the National Electric Code (NEC), API and Canadian Electric Code (CEC) wiring requirements take precedence in the United States and Canada over normal IEC practices.

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IECEx Certified Equipment

Under normal circumstances, because of the national deviations or national differences inherent within the ANSI, UL, ISA and CSA standards published in North America it is not possible to select IECEx ‘only’ certified equipment for use in classified locations defined by NFPA (NEC) Article 505 & API 505 (14FZ), or C22.1-18 Section 18, unless that equipment is also certified and marked with an AEx or Ex codification signifying that it has been assessed, tested and certified to all of the relevant ANSI, UL, ISA or CSA standards, and is installed in accordance with the applicable wiring method and installation code.

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CMP Recommendations to Eliminate Explosion Risks

Clause 9.3.1 of AS/NZS 60079.14:2017 (Edition 2.0), states that cables with low tensile strength (<8.5 MPa) sheaths shall not be used in explosive atmospheres. However, if the inner sheath/bedding is unable to support the application of a sealing ring due to low tensile strength / hardness, or a loose cable construction without fillers, then a barrier type cable gland can be used after removal of the inner sheath / bedding.

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CMP Recommendations to Eliminate Explosion Risks

Recommended Additional Selection Criteria For Direct Entry Flameproof Type ‘d’ Cable Glands Clause 9.3.1 of IEC 60079-14:2013 (Edition 5.0), states that cables with low tensile strength (<8.5 MPa) sheaths shall not be used in explosive atmospheres. However, if the inner sheath / bedding is unable to support the application of a sealing ring due to low tensile strength / hardness, or a loose cable construction without fillers, then a barrier type cable gland can be used after removal of the inner sheath / bedding.

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