The TRANBERG® TEF D620 is an Ex e / Ex d cable gland for unarmoured and braided cables, made in brass. It seals on the outer sheath of the cable and clamps it with a gasket developed by R. STAHL Tranberg: an elastic, expandable silicone with an admixture of coarse aluminium-oxide grains that grip the cable surface. The result is a 100 % pull-out force integrated in the gland itself, fully compliant with the clamping test in IEC/EN 60079-0, and no special conditions for safe use.
Application
- Outdoor or indoor installation of unarmoured cables (Ex e / Ex d)
- Outdoor or indoor installation of armoured cables (Ex e)
- Hazardous area Zone 1 and Zone 2, and safe area
- Sealing on the cable outer sheath only
Features and benefits
- Patented Tranberg® gasket: 100 % pull-out force, cable cannot slip while the gland is tightened
- Relieves strain on the electrical connection and circuitry inside the enclosure
- O-ring for sealing between cable gland and enclosure
- Fully compliant with the IEC/EN 60079-0 clamping test requirement
- No “special conditions for safe use”
- Marked according to Ex protection
Technical data
| Material, cable gland | Brass |
|---|---|
| Material, gasket | Silicone Shore A 70 with 50 % aluminium oxide |
| Material, O-ring | Silicone Shore A 70, red |
| Ingress protection | IP66 / IP67 |
| Ambient temperature | −60 °C to +135 °C |
| Cable type | Unarmoured and braided |
| Sealing technique | Tranberg® patented gasket, sealing on cable outer sheath |
| Entry length | 15 mm |
| Ex protection | II 2 G Ex d IIC Gb · II 2 G Ex e IIC Gb |
Approvals and certificates
- IECEx certificate IECEx PRE 14.0023
- ATEX certificate Presafe 14 ATEX 1532
- Directive 2014/34/EU; IEC 60079-0, IEC 60079-1, IEC 60079-7
Datasheet, user manual, EU declaration of conformity and the certificates apply to the whole D620 series and are listed once above the variant table.
Selecting the right size
Every variant has its own part number. Choose by entry thread (the thread in the enclosure) and overall cable diameter: the cable’s outside diameter must fall inside the clamping range of the sealing code. Several sealing codes are available for each thread size, so a given cable can often be fitted through more than one entry size. Across-flats and across-corners dimensions are given for spanner and hole-spacing planning.
The same gland is also available in stainless steel AISI 316.
