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Cable Glands

321

Hazardous Area

(Fully Compressed Length)
G' Approx
15.0mm

Increased Safety Exe
Class - Zones - Divisions
Certified ATEX / IECEx / c CSA us

Application
The 321 cable gland provides a seal on the outer cable sheath and is
intended for use on non-armoured elastomer and plastic insulated
cables. The cable gland certified Exe and is suitable for installation in
Zone 1 (21) and Zone 2 (22) hazardous areas.

Ø 'B'

Entry Thread

Metric
Entry

CABLE GLAND SELECTION TABLE
Entry Thread Size
Size
Ref.

Metric

NPT *
Standard or
Option

2K
Os
O
A
B
C
C2
D
E
F
G
H
J

M16
M20²
M20²
M20
M25
M32
M40
M50
M63
M75
M80
M90
M100

½"
½"
¾" or ½"
1" or ¾"
1¼" or 1"
1½" or 1¼"
2" or 1½"
2½" or 2"
3" or 2½"
3½"
3½"
4"

Cable Acceptance Details

Hexagon Dimensions

Outer Sheath ‘B’
Standard Seal
Min.
3.2
3.2
6.5
10.0
13.0
19.5
25.0
31.5
42.5
54.5
67.0
67.0
75.0

Max.
8.0
8.0
11.9
14.3
20.2
26.5
32.5
44.4 / 42.3¹
56.3 / 54.3¹
68.2 / 65.3¹
73.0
77.6
91.6

‘G’

Across
Flats

Across
Corners

23.5
23.8
23.8
24.8
25.8
28.2
29.5
40.4
38.2
40.5
41.0
41.0
41.0

19.0
24.0
24.0
30.0
36.0
46.0
55.0
65.0
80.0
95.0
106.4
115.0
127.0

21.2
26.5
26.5
32.5
39.5
50.5
60.6
70.8
88.0
104.0
115.0
130.0
142.0

Alternative Seal (S)
Min.
9.0
9.5
15.5
22.0
27.5
39.0
49.5
-

Max.
13.4
15.4
21.2
28.0
34.8
46.5
58.3
-

All dimensions in millimetres (except * where dimensions are in inches). 2K - F size metric entry threads are 1.5mm pitch as standard, 15mm length of
thread. For G size glands and above, a 2mm pitch is supplied as standard, 20mm length of thread (1.5mm pitch with 15mm length
of thread can be supplied) please specify when ordering.

¹ Smaller value is applicable when selecting reduced NPT entry option.
² Sizes Os and O are available with an M16 thread size. For O size with M16 thread, the maximum cable outer sheath diameter is 10.9mm

Technical Data
ATEX/IECEx
Increased Safety Exe IIC Gb and Dust Extb IIIC Db II 2 GD.
Certificate No’s: Baseefa06ATEX0059X and IECEx BAS 06.0016X.
Suitable for use in Zone 1, Zone 2, Zone 21, Zone 22.
Construction and Test Standards: IEC/EN 60079-0, IEC/EN
60079-7 and IEC/EN 60079-31.
Ingress Protection: IP66, IP67 and IP 68 (30 metres for 7 days)
to IEC/EN 60529 and NEMA 4X.
Deluge Protection to DTS01.
Operating Temperature Range: -60°C to +100°C.
Assembly Instruction Sheet: AI 451.

cCSAus
Increased Safety AExe IIC and Dust AExtD Zone 21.
Explosion-proof Class 1 Division 2, Class II Division 2 Groups
EFG, Class III.
Certificate No’s: CSA1205533 for Marine Shipboard Cable.
Construction and Test Standards: UL 60079-0, UL 60079-7, ISA
60079-31.
CSA 22.2 No: 60079-0, CSA 22.2 No: 60079-7, CSA 22.2 No:
60079-31, UL 2225

Features

• When used in Increased Safety applications, this cable gland
may be used with braided cable where the braid and the
outer sheath pass into the enclosure. The braid must then be
suitably terminated inside the enclosure.
Note: Braided cable is classed as unarmoured cable in the
EN/IEC 60079 series standards for Exe applications.

• Manufactured in Brass (standard), Nickel Plated Brass, 316
Stainless Steel or Aluminium.
• Brass NPT entries are nickel plated as standard.

Ordering Information
Format for ordering is as follows:
Certification required i.e. ATEX / IECEx
Material & Finish i.e. Brass Nickel Plated
Alternative Seal (S), add suffix S to ordering information.
Cable Gland Type
321
321

Size
C
C

Thread
M32
1 1⁄4"NPT

(Optional)
S
S

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