501/421 Cable Gland

Application

The 501/421 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 is dual certified Exd and Exe and is suitable for installation in Zone 1 (21) and Zone 2 (22) hazardous areas.

Features

When used in increased safety applications, this cable gland may be used with braided cable where the braid and the cables outer sheath pass into the enclosure. The braid must be suitably terminated inside the enclosure.
Manufactured in brass (standard), nickel plated brass, 316 stainless steel or aluminium.
Brass NPT entries are nickel plated as standard.

Technical Data

Flameproof Exd and Increased Safety Exe. II 2 GD ExtD A21.
Baseefa Certificate No. Baseefa06ATEX0056X.
IECEx Certificate No. IECEx BAS 06.0013X.
Suitable for use in Zone 1, Zone 2, Zone 21 and Zone 22.
Suitable for use in Gas Groups IIA, IIB and IIC.
Construction and test standards IEC 60079-0, IEC 60079-1, IEC 60079-7, IEC 61241-0 and IEC 61241-1.
IP66, IP67 and IP68 (30 metres for 7 days) ingress protection to IEC 60529, EN 60529 and NEMA 4X.
DTS01 deluge protection certified by ITS.
Operating temperature range -60°C to +100°C as standard.
Alternative certification options available:
Option available, Exd IIC, Exe II. Certificate No. 1015065 (LR 78713-7).
Option available, BR-Exd IIC/Exe II. Certificate No. CEPEL-EX-059/2001X.
GOST R-Exd IICU/Exe IIU.
Option available, Exd IIC/Exe II/DIP A21 IP66.
Approved for use in Kazakhstan.
Marine Approval. Certificate No. 06-LD142850A-PDA.
Marine Approval. Certificate No.E-8003.

501/421 Cable Gland

CABLE GLAND SELECTION TABLE
Size Ref.	Entry Thread Size			Thread Length ‘H’	Cable Acceptance Details				‘G’ Compressed Length	Hexagon Dimensions
					Outer Sheath ‘B’
	Metric	NPT *			Standard Seal		Alternative (S) Seal			Across Flats	Across Corners
		Standard	Option		Min.	Max.	Min.	Max.
2K	M16	-	-	15.0	3.0	8.0	-	-	23.5	19.0	21.2
Os	M20 ‡	½"	-	15.0	3.0	8.0	-	-	21.8	24.0	27.7
O	M20 ‡	½"	-	15.0	7.5	11.9	-	-	21.8	24.0	27.7
A	M20	¾"	½"	15.0	11.0	14.3	8.5	13.5	22.8	30.0	34.6
B	M25	1"	¾"	15.0	13.0	20.2	9.5	15.4	23.8	36.0	41.6
C	M32	1¼"	1"	15.0	19.0	26.5	15.5	21.2	26.2	46.0	53.1
C2	M40	1½"	1¼"	15.0	25.0	32.5	22.0	28.0	27.5	55.0	63.5
D	M50	2"	1½"	15.0	31.5	44.4/42.3 †	27.5	34.8	38.5	65.0	75.1
E	M63	2½"	2"	15.0	42.5	56.3/54.3 †	39.0	46.5	36.2	80.0	92.4
F	M75	3"	2½"	15.0	54.5	68.2/65.3 †	48.5	58.3	38.5	95.0	109.6
G	M80	3½"	-	20.0	67.0	73.0	-	-	41.0	106.4	123.0
H	M90	3½"	-	20.0	67.0	77.6	-	-	41.0	115.0	132.8
J	M100	4"	-	20.0	75.0	91.6	-	-	41.0	127.0	146.7
†Smaller value is applicable when selecting reduced NPT entry option. ‡ Sizes Os and O are available with an M16 thread size. For O size with M16 thread, the maximum cable outer sheath diameter is 10.9 mm 2K - F size metric entry threads are 1.5mm pitch as standard. For G size Cable Glands and above, a 2mm pitch is supplied as standard (1.5mm pitch with 15mm length of thread can be supplied) please specify when ordering. All dimensions in millimetres (except * where dimensions are in inches).

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