Uploaded By Chris Dodds – Thorne & Derrick Sales & Marketing Manager
What Is The Function Of Bushings?
Bushings are electrical equipment devices designed to distribute electric power and energy through a grounded barrier, such as the wall of a transformer or switchgear. The Euromold epoxy bushings provide an insulated and screened connection between the conductors in the equipment and conductor of the cable.
Nexans Euromold are world leaders in the manufacture of Screened Separable Connectors to enable the safe termination of medium voltage and high voltage power cables onto outer cone bushings of electrical equipment including switchgear, transformers and motors up to 66kV – cable connectors for the termination of MV-HV cables into gas insulated switchgear are also available with inner cone bushings, see inner cone plugs.
Euromold connectors are approved by leading gas insulated switchgear and electrical equipment manufacturers including ABB, Schneider, Brush and Siemens.
All Nexans Euromold connectors are 100% Â AC withstand and partial discharge tested at Nexans factory prior to shipment.
Euromold bushings are deadbreak bushings for de-energised systems – the power has to be switched off before the connector can be disconnected from the bushing.
The following article enables the correct selection and specification of Nexans Euromold connectors depending on a) cable specification and b) electrical equipment bushing type (A, B, C, D, E or F). The diameter over the core insulation of the cable to be terminated is critical to the reliable performance of separable connectors.
T&D provide an informative overview of the 6 Bushing Interfaces common to MV-HV electrical equipment with dimensions according to European CENELEC EN 50180 and 50181 – this should benefit the electrical design engineer, project manager, project engineer and cable jointer.
Some tips and hints are provided by kind courtesy of the Nexans UK Team.
Nexans Euromold connectors must be fitted onto the correct bushing when installed and can be used to terminate both single and 3 core medium voltage cables.
Multiple medium/high voltage cables can be connected per bushing by double-stacking or “piggy-backing” providing flexible solutions to complex cable termination applications.
The MV-HV electrical equipment to which Nexans Euromold connectors are fitted to must have the correct bushing Interface and be designed to suit the cable specification.
Euromold connectors are suitable for connecting single and 3 core polymeric insulated cables with copper wire or tape screens up to 33kV – this has recently been increased to 66kV/72kV to cater for offshore wind farm cable terminations onto 66kV equipment in wind turbines.
Euromold Overview
| Interface type |
Contact type | Current rating (A) | RMS symm. (kA)  | Peak asymm. (kA) |
Voltage Um (kV) |
||
|  1 sec. |  2 sec. | 3 sec. | |||||
| A1 | Pin and socket | 250 | 12.5 | 9.0 | 7.5 | 31 | 24 |
| B1 | Pin and socket | 250 | 12.5 | 9.0 | 7.5 | 31 | 36 |
| B2 | Pin and socket | 400 | 16.0 | 11.3 | 9.2 | 40 | 36 |
| C1 | Bolted | 630 | 28.0 | 19.7 | 16.1 | 70 | 36 |
| C2 | Bolted | 1250 | 75.0 | 53.0 | 43.3 | >150 | 36 |
| D1 | Bolted | 800 | 50.0 | 35.3 | 28.8 | 125 | 24 |
| D2 | Bolted | 1250 | 75.0 | 53.0 | 43.3 | >150 | 24 |
| E1 | Bolted | 800 | 50.0 | 35.3 | 28.8 | 125 | 36 |
| E2 | Bolted | 1250 | 75.0 | 53.0 | 43.3 | >150 | 36 |
| F1 | Bolted | 2500 | – | – | – | – | 36 |
| F2 | Bolted | 630 | 28.0 | 19.7 | 19.1 | 70 | 52 |
| F3 | Bolted | 1250 | 75.0 | 53.0 | 43.3 | >150 | 52 |
Euromold 158LR Elbow Connectors are used with 200 Series Interface A Bushing – a Euromold 152SR straight connector option is also available.
Interface A can be identified by the 6 tabs common to 200amp load break systems typical to padmounted transformer applications.
Includes a push-on pin contact bail rather than bolt for connecting to unthreaded medium voltage bushings. The 200 series range of connectors for use with Interface A bushings are common to low powered 11kV transformers typically providing tap-off or direct feed of medium voltage power to remote locations.
âž¡ See Interface A Connectors & Bushings From Nexans Euromold
Euromold 400LR Elbow Connectors are used with 400 Series Interface B Bushing.
Interface B is common to France and French manufactured medium voltage electrical equipment and Alston Grid Turkey oil type transformers up to 33kV. Interface B bushings are pin-type connectors, not bolted, to the bushings..
➡ See Interface B Connectors & Bushings From Nexans Euromold
Euromold 430TB Elbow Connectors are used with 400 Series Interface C Bushing.
Bolted M16 Nexans Euromold connectors suit 630amp switchgear systems and can be “piggy-backed” using couplers to terminate multiple cables per phase in compact switchgear – common to the UK switchgear market including both air and gas insulated type equipment.
The physical dimensions of the Interface C connectors are identical to the specification of Interface B design but with bolted contacts.
Interface C1 is 630Amp whereas Interface C2 is 1250Amp.
➡ See Interface C Compact Connectors & Bushings From Nexans Euromold
Video : Nexans Euromold 430TB Tee Connector 11kV-33kV
 ➡ See Interface C Symmetrical Connectors & Bushings From Nexans Euromold
Type D Bushing –Â 1250Amp
Interface D bushing connectors are available in both 800A Aluminium (Interface D1) or 1250A Copper (Interface D2).
âž¡ See Interface D Connectors & Bushings From Nexans Euromold
Type E Bushing – 1250 Amp
➡ See Interface E Connectors & Bushings From Nexans Euromold
Interface E bushing connectors are available in both 800A Aluminium (Interface E1) or 1250A Copper (Interface E2).
➡ See Interface F Connectors & Bushings From Nexans Euromold
Interface F bushing connectors are available in 630A (Interface F1), 1250A (Interface F2) and 2500A (Interface F3) with tee connector design and supporting range of coupling connectors up to 66kV.
As a rule, ANSI specification type Interface D and Interface E connectors are usually black coloured whereas types A, B & C are orange-brown in colour.
Nexans Euromold surge arresters can be provided depending on the medium voltage earthing system design.
 ♦ Further Reading About Bushings & Connectors Applications
Contact us for Competitive Prices & Fast Delivery from Stocks for Heat Shrink, Cold Shrink & EPDM Rubber Connectors, Joints & Terminations up to 66kV.
Go to our Price List and contact us with your enquiries.
Heat Shrink Cable Accessories for 11kV Triplex Cables
Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Accessories, Jointing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV.
Stocking & Supplying | Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Jointing Tools | Cable Pulling Eqpt | Earthing & Lightning Protection | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV
Euromold MV HV | Cable Terminations, Connectors, Elbows & Joints
Euromold 400 Series Connectors | MV HV
➡ To view the complete range of Euromold 400 Series Connectors and medium/high voltage cable accessories for use with Interface B Bushings please see below.
THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HVÂ
T&D stock and supply cable accessories to Cable Cleat, Gland, Joint & Terminate armoured/unarmoured multicore (SWA) or single core (AWA) power cables into low and high voltage substations – the LV cable installation accessories support electricity distribution to main distribution switchgear, sub-distribution boards and transformers.
CMP Glands | 3M Joints | Cembre Lugs | Ellis Cleats | LV Cable Accessories
Euromold 600 Series Connectors | MV HV
➡ To view the complete range of Euromold 600 Series Connectors and medium/high voltage cable accessories for use with Interface C Bushings please see below.
THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HVÂ
T&D stock and supply cable accessories to Cable Cleat, Gland, Joint & Terminate armoured/unarmoured multicore (SWA) or single core (AWA) power cables into low and high voltage substations – the LV cable installation accessories support electricity distribution to main distribution switchgear, sub-distribution boards and transformers.
CMP Glands | 3M Joints | Cembre Lugs | Ellis Cleats | LV Cable Accessories
Euromold 600 Series Connectors | MV HV
➡ To view the complete range of Euromold 600 Series Connectors and medium/high voltage cable accessories for use with Interface C Bushings please see below.
THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HVÂ
Euromold 600 Series Connectors | MV HV
➡ To view the complete range of Euromold 600 Series Connectors and medium/high voltage cable accessories for use with Interface D Bushings please see below.
THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HVÂ
T&D stock and supply cable accessories to Cable Cleat, Gland, Joint & Terminate armoured/unarmoured multicore (SWA) or single core (AWA) power cables into low and high voltage substations – the LV cable installation accessories support electricity distribution to main distribution switchgear, sub-distribution boards and transformers.
CMP Glands | 3M Joints | Cembre Lugs | Ellis Cleats | LV Cable Accessories
Published 02 Sep 2026
Celebrating Charlie & Ella’s Level 4 Sales Executive Apprenticeships At Thorne & Derrick International, we are proud to champion talent development and recognise the dedication required to achieve professional growth. We are therefore delighted to congratulate Charlie Baines and...
Published 11 Aug 2026
Thorne & Derrick will be Exhibiting at Solar & Storage Live UK 2026 at the NEC Birmingham from 22nd–24th September, showcasing our support for HV Cable Accessories, Joints, Terminations, Separable Connectors, Cable Tooling and Grid Connection Products used across...
