The TRANBERG® TEF 663 is a fixed 90° angle adaptor with Ex e certification for hazardous-area enclosures, developed and manufactured at the R. STAHL Tranberg factory in Stavanger. It lets a cable gland enter an enclosure at a right angle where space is limited, with a male metric thread towards the enclosure and a female metric or NPT thread for the gland. Sealed with an O-ring, available in brass and stainless steel AISI 316 (EN 1.4401). A 45° neck is available on request.
Application
- Outdoor or indoor installation
- Hazardous area Zone 1 and Zone 2, and safe area
- Fitting a cable gland at a right angle to the enclosure where straight entry is not possible
Features and benefits
- Available in brass and stainless steel AISI 316 (EN 1.4401)
- O-ring seal, IP66/67
- Female thread metric or NPT
- Option: 45° neck
- Certified to both ATEX and IECEx
Technical data
| Material | Brass or stainless steel AISI 316 |
|---|---|
| Material, O-ring | Silicone Shore A 70, red |
| Male thread | Metric, 15 mm length |
| Female thread | Metric or NPT |
| Ingress protection | IP66 / IP67 |
| Ambient temperature | −60 °C to +135 °C |
| Ex protection | II 2 G Ex eb IIC |
Approvals and certificates
- IECEx certificate IECEx NEM 13.0025X
- ATEX certificate Nemko 13 ATEX 1553X
- Directive 2014/34/EU; IEC 60079-0, IEC 60079-7
Special conditions for use: only one adaptor is permitted for each cable entry. Blanking elements shall not be used with adaptors. When NPT threads are used with an Ex d enclosure, the threads must conform to ANSI/ASME B1.20.1.
Datasheet, EU declaration of conformity and the certificates apply to the whole series and are listed once above the variant table.
Selecting the right size
Every variant has its own part number. Choose by male thread (the enclosure entry) and female thread (the cable gland). If the outlet must be turned to any position, see the adjustable TEF 664.









