Products / Separable Connector
400TB / 440TB Series
Nexans Euromold 400TB/440TB Symmetrical T-Connectors
When a screened, symmetrical separable connector is needed to terminate polymeric-insulated MV cables onto Interface C bushings (for gas-insulated switchgear, transformers, or motors up to 42 kV), the Nexans Euromold 400TB and 440TB series is what we specify. The 400TB family covers 16–300 mm² conductors across the 12–42 kV range, while the heavier-duty 440TB family extends up to 630 mm² conductors across the same voltage range.
About this product
The Nexans Euromold 400TB and 440TB series are symmetrical, screened separable T-connectors used to terminate polymeric-insulated medium-voltage cables onto Interface C bushings (per EN 50180 / EN 50181) in gas-insulated switchgear, transformers, and motors rated up to 42 kV. Each connector bridges a C1 and a C2 bushing interface, which carry different continuous current ratings: 630 A on the C1 side and 1250 A on the C2 side. This bushing-class rating is a separate property from the connector's own conductor cross-section capacity, and the two should not be read as interchangeable when specifying a replacement or new installation. The 400TB family handles 16–300 mm² conductors (35–240 mm² on the 36 kV and 42 kV variants) with a 12.0–37.5 mm cable insulation diameter. The 440TB family extends this to 185–630 mm² conductors with a 23.5–55.0 mm insulation diameter, for higher-current and larger-cable applications. Both families use an EPDM rubber body, accept aluminium or copper conductors via a bolted mechanical connection, and support cable outer-sheath testing without removing the connector. An optional +MWS variant is available for outdoor and humid-environment installations; the standard version is rated for indoor use.
Technical Specifications
| connector geometry | Symmetrical screened separable T-connector |
| bushing interface | EN 50180 / EN 50181, Interface C1 and C2 |
| max system voltage | 42 kV |
| Rated Continuous Current | 630 A on the C1 bushing, 1250 A on the C2 bushing |
| conductor cross section | 16–630 mm², depending on model and voltage class |
| cable insulation diameter | 12.0–55.0 mm |
| conductor material | Aluminium or copper |
| compatible cable type | Polymeric-insulated MV cables |
| Insulation Material | EPDM rubber |
| conductor connection method | Bolted / mechanical connection |
| test measurement features | Cable outer-sheath test without removing the connector; voltage detection point depends on plug and accessory type |
| LPVT / Sensor Integration | Compatible with dedicated rear-port voltage sensors or LPVT solutions, subject to connector model and interface verification |
| installation environment | Indoor; +MWS option for outdoor and humid-environment applications |
Ordering Options
| Article Code | System Voltage (kV) | Continuous Current (A) | Insulation Diameter (mm) | Conductor Cross-Section (mm²) | Notes |
|---|---|---|---|---|---|
| 400TB | 12 kV | 630 A (C1) / 1250 A (C2) | 12.0–37.5 mm | 16–300 mm² | |
| K400TB | 24 kV | 630 A (C1) / 1250 A (C2) | 12.0–37.5 mm | 16–300 mm² | |
| M400TB | 36 kV | 630 A (C1) / 1250 A (C2) | 12.0–37.5 mm | 35–240 mm² | |
| P400TB | 42 kV | 630 A (C1) / 1250 A (C2) | 12.0–37.5 mm | 35–240 mm² | |
| 440TB | 12 kV | 630 A (C1) / 1250 A (C2) | 23.5–55.0 mm | 185–630 mm² | |
| K440TB | 24 kV | 630 A (C1) / 1250 A (C2) | 23.5–55.0 mm | 185–630 mm² | |
| M440TB | 36 kV | 630 A (C1) / 1250 A (C2) | 23.5–55.0 mm | 185–630 mm² | |
| P440TB | 42 kV | 630 A (C1) / 1250 A (C2) | 23.5–55.0 mm | 185–630 mm² |
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