B Series

BNT

type

Flameproof Ex d • increased safety Ex e • for indoor & outdoor applications

for unarmoured cables • Outer sheath seal
BNT-type-foto-B-series-rcn
BNT-esploso-21
Pag92-resina serie B-21

Cable glands BNT type 
(code: BNT)

Flameproof Ex d Barrier Cable Glands sealed with sealing compound. The sealing ring blocks the cable on the cable outer sheath.
Metric cable glands are made according to EN 62444 standard.
Maintenance and installation operations and product selection must be done in accordance with IEC EN 60079-14 and 17 standards.

Application fields

Surface - Group II • Mines - Group I

Approvals / Certifications

ATEX certifi cate: INERIS 06 ATEX 0014X
Type examination certifi cate: INERIS 17 ATEX 3009X (Ex nR IIC Gc)
IEC Ex certifi cate: IEC Ex INE 10.0010X
UKCA certifi cate: CML 21UKEX1590X;
UKCA certifi cate (Cat 3): CML 21UKEX1591X
EAC certifi cate: HACTXOЛ RU C-IT.AЯ45.B.00909
CCC Ex NEPSI Certifi cate: Nr. 2021322313003706

Protection type

Ex db IIC • Ex eb II (gas) • Ex tb IIIC (dusts) • Ex db I • Ex eb I (mines)

EPL (Equipment protection level)

Zone 1-2: Mb mines • Gb, Gc gas
Zone 21-22: Db Dc combustible dusts

Execution

Ex db IIC • Ex eb II • Ex tb IIIC • Ex db I • Ex eb I Db according to
ATEX: EN IEC 60079-0:2018 • EN 60079-1:2014 •
EN IEC 60079-7:2015/A1:2018 • EN 60079-15:2010 •
EN 60079-31:2014 • EN 60529:1991
IEC Ex: IEC 60079-0:2017 • IEC 60079-1:2014 •
IEC 60079-7:2015/A1:2017 • IEC 60079-15:2017 •
IEC 60079-31:2013 • IEC 60529:1989+A1:1999+A2:2013

Ambient temperatures in services: sealing washers materials

EPDM seals + Resin RCN SFR+SFH: -40°C ÷ +100°C (code: EP)
Silicone seals + Resin RCN SFR+SFH: -50°C ÷ +149°C (code: SI)
EPDM seals + Resin RCN EPR+EPH: -40°C ÷ +100°C (code: EP)
Silicone seals + Resin RCN EPR+EPH: -60°C ÷ +150°C (code: SI)

Cable type

Unarmoured

Available materials

Brass (code: OT) • Nickel-plated brass (code: ON)
AISI316L Stainless steel (code: S6) • Aluminium (code: AL)
AVP Steel (code: AVP)

Available threads

ISO 262 Metrical • ISO 228 • DIN 40430 Pg
ANSI B1.20.1 NPT • EN 10226 Gk (only for ATEX)

Degree of protection

The cable glands degree of protection is IP66 or IP66/68, 30-meters depth for 7 days according to the IEC EN 60529 standard; the degree of protection IP 68 is obtained by using flat sealing rings on cable glands with cylindrical threads. Without gaskets, the degree of protection is IP 66. If the cable glands with cylindrical or tapered threads are screwed on the threaded hole of an apparatus, in order to guarantee an IP66 or IP66/68 degree of protection, threaded parts must be sealed with Loctite or similar. In order to maintain the IPX8 degree of protection, the cable entry shall be fitted on enclosure witch satisfies an immersion test under 30 meters of water during 7 days. Metric cable glands are made in accordance to 
EN 62444 Standard.

Kit version (code: KIT)

0 kit version Includes cable glands and
the requested complete series of
the rubber seals accompanying the size

Example Code

BNT-type-example-code-table-or

Technical Drawing

BNT-disegno-21
BNT-type-table-details