The TRANBERG® TEF 664 is an adjustable Ex e angle adaptor for hazardous-area enclosures, developed and manufactured at the R. STAHL Tranberg factory in Stavanger. A swivel lets the outlet be set in any position after the adaptor is fitted, so the cable can be led in the direction the installation needs. Male and female thread are metric and equal in size. Sealed with an O-ring, available in brass and stainless steel AISI 316 (EN 1.4401).
Application
- Outdoor or indoor installation
- Hazardous area Zone 1 and Zone 2, and safe area
- Fitting a cable gland at an angle where the cable direction must be adjusted on site
Features and benefits
- Swivel allows the outlet to be set in any position
- Available in brass and stainless steel AISI 316 (EN 1.4401)
- O-ring seal, IP66/67
- 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, same size as male thread |
| 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.
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 thread size: male and female thread are the same. For a fixed 90° angle or an NPT outlet, see the TEF 663.








