Structure and materials
- Reinforced polyester fiberglass resin enclosure, RAL 7040
- Internal components made of self-extinguishing materials with high resistance to surface tracking
- Rubber cable gland (cable guide variant only)
Current Transformer Assemblies and Cable Guides for LV Semi-Indirect Supplies
NTET current transformer (CT) assemblies and cable guides for low-voltage semi-indirect supplies ensure safe integration and full compliance with Enel standards for GET4S, GISS and GME/BS metering systems.
Robust fiberglass solutions, suitable for wall mounting or installation inside dedicated enclosures.
Available Variants
Unit for semi-indirect supplies up to 200 kW with CT ratio 125/5 A/A. Complete structure with fiberglass base and cover, integrated CT block and input/output terminals. Suitable for wall installation or inside DS4558 / C4M / C3M enclosures.
| Parameter | Value | Unit |
|---|---|---|
| Base dimensions | 464 mm | |
| Height | 501 mm | |
| Depth | 183 mm | |
| Material | Reinforced polyester fiberglass resin, RAL 7040 | |
| Fire reaction class | Class 1 UNI 8457 | |
| Smoke opacity | ≤ 1,5 CEI 20-37 / CEI 20-38/1 | |
| Toxic / corrosive gases | ≤ 2 CEI 20-37 / CEI 20-38/1 | |
| PTI | ≥ 500 | |
| CT block material | PA66 G25 V0 halogen-free CTI 600V | |
| Rated voltage | 400 V | |
| Rated frequency | 50 Hz | |
| CT ratio | 125/5 A | |
| Assembly rated current | 500 A | |
| Technical standard | Enel DMI031006 |
Enhanced version for supplies up to 400 kW, CT ratio 300/5 A/A and rated current 1200 A. Same compliance and installation configuration as the 200 kW version.
| Parameter | Value | Unit |
|---|---|---|
| Base dimensions | 464 mm | |
| Height | 501 mm | |
| Depth | 183 mm | |
| Material | Reinforced polyester fiberglass resin | |
| Fire reaction class | Class 1 UNI 8457 | |
| Smoke opacity | ≤ 1,5 | |
| Toxic / corrosive gases | ≤ 2 | |
| PTI | ≥ 500 | |
| CT block material | PA66 G25 V0 halogen-free CTI 600V | |
| Rated voltage | 400 V | |
| Rated frequency | 50 Hz | |
| CT ratio | 300/5 A | |
| Assembly rated current | 1200 A | |
| Technical standard | Enel DMI031006 |
Support and guide element for coaxial cables dedicated to CT assemblies, complete with fiberglass base/cover and rubber cable gland.
| Parameter | Value | Unit |
|---|---|---|
| Base dimensions | 451 mm | |
| Height | 250 mm | |
| Depth | 80 mm | |
| Material | Fiberglass + rubber cable gland | |
| Fire reaction class | Class 1 UNI 8457 | |
| Smoke opacity | ≤ 1,5 | |
| Toxic / corrosive gases | ≤ 2 | |
| PTI | ≥ 500 | |
| Installation | Wall mounting – compatible with 500 A CT assemblies | |
| Technical standard | Enel DMI031006 |
Technical Specifications – CT Assembly 200 kW
Functionality
- Connection of GET4S, GISS, GME/BS metering units
- Integrated CT block (200 and 400 kW variants)
- Wall mounting, with cable guide or inside DS4558, C4M, C3M enclosures
Compliance
- Enel Technical Specifications DMI031006
- Fire reaction Class 1 UNI 8457
- Smoke, toxicity and corrosivity limits according to CEI 20-37 / CEI 20-38
ENEL references
DS 4549, DS 4558, DS 4559.
Versatile Applications
-
Semi-indirect LV installations up to 200–400 kW
-
Electronic metering system connections
-
Retrofit of existing CT assemblies
-
Installations with coaxial cable (with cable guide)
-
Mounting inside standard Enel enclosures
