Series
Junction ES Series
Built to minimize losses in connection points and cable junctions.

ES junction boxes are designed to provide your electrical systems with the best protection possible — built to minimize the risk of losses in connection points and cable junctions. Special solid-cover structure. Polyurethane sealing gasket. Tested for tight, reliable cable transit.
Key Features
- ▸Special solid-cover structure
- ▸Polyurethane sealing gasket
- ▸Tested for tight, reliable cable transit
- ▸Internal plate: zinc-plated steel
- ▸RAL 7035 textured powder coat
- ▸Stainless variant — add suffix A to box SKU (e.g., ES3 → ES3A)
IP Rating
IP66
Material
1.5 mm carbon steel sheet · Internal plate: zinc-plated steel · RAL 7035 textured
IK Rating
IK10
Mounting
Wall or surface mount; screwed solid cover
Standards
Certifications & Compliance
- ▸IP66 (CEI EN 62208 / CEI EN 60529, internal use)
- ▸IK10 (CEI EN 62208 / CEI EN 62262)
Models & Specifications
Available Models
| Box SKU | Dimensions (mm) H × W × D | Dimensions (in) H × W × D | Plate SKU | Quote |
|---|---|---|---|---|
| ES1 Internal plate 12.5 × 16.2 mm | 150 × 180 × 80 | 6 × 7 × 3 | ES1-PL | |
| ES23 Internal plate 12.5 × 28.2 mm | 150 × 300 × 80 | 6 × 12 × 3 | ES23-PL | |
| ES24 Internal plate 12.5 × 28.2 mm | 150 × 300 × 120 | 6 × 12 × 5 | ES24-PL |
| Box SKU | Dimensions (mm) H × W × D | Dimensions (in) H × W × D | Plate SKU | Quote |
|---|---|---|---|---|
| ES2 Internal plate 15.5 × 18.2 mm | 180 × 200 × 80 | 7 × 8 × 3 | ES2-PL |
| Box SKU | Dimensions (mm) H × W × D | Dimensions (in) H × W × D | Plate SKU | Quote |
|---|---|---|---|---|
| ES21 Internal plate 17.5 × 28.2 mm | 200 × 300 × 80 | 8 × 12 × 3 | ES21-PL | |
| ES22 Internal plate 17.5 × 18.2 mm | 200 × 200 × 120 | 8 × 8 × 5 | ES22-PL | |
| ES3 Internal plate 17.5 × 28.2 mm | 200 × 300 × 120 | 8 × 12 × 5 | ES3-PL | |
| ES4 Internal plate 17.5 × 38.2 mm | 200 × 400 × 120 | 8 × 16 × 5 | ES4-PL | |
| ES5 Internal plate 17.5 × 48.2 mm | 200 × 500 × 120 | 8 × 20 × 5 | ES5-PL | |
| ES6 Internal plate 17.5 × 58.2 mm | 200 × 600 × 120 | 8 × 24 × 5 | ES6-PL | |
| ES29 Internal plate 17.5 × 78.2 mm | 200 × 800 × 120 | 8 × 32 × 5 | ES29-PL |
| Box SKU | Dimensions (mm) H × W × D | Dimensions (in) H × W × D | Plate SKU | Quote |
|---|---|---|---|---|
| ES25 Internal plate 27.5 × 28.2 mm | 300 × 300 × 120 | 12 × 12 × 5 | ES25-PL | |
| ES26 Internal plate 27.5 × 48.2 mm | 300 × 500 × 120 | 12 × 20 × 5 | ES26-PL | |
| ES7 Internal plate 27.5 × 58.2 mm | 300 × 600 × 120 | 12 × 24 × 5 | ES7-PL | |
| ES28 Internal plate 27.5 × 58.2 mm | 300 × 600 × 120 | 12 × 24 × 5 | ES28-PL |
| Box SKU | Dimensions (mm) H × W × D | Dimensions (in) H × W × D | Plate SKU | Quote |
|---|---|---|---|---|
| ES27 Internal plate 37.5 × 38.2 mm | 400 × 400 × 120 | 16 × 16 × 5 | ES27-PL | |
| ES13 Internal plate 37.5 × 48.2 mm | 400 × 500 × 120 | 16 × 20 × 5 | ES13-PL | |
| ES8 Internal plate 37.5 × 58.2 mm | 400 × 600 × 120 | 16 × 24 × 5 | ES8-PL | |
| ES9 Internal plate 37.5 × 78.2 mm | 400 × 800 × 120 | 16 × 32 × 5 | ES9-PL |
Catalog source: Tecnomatic Enclosures Brochure (2026) pp 14–15. Custom sizes, finishes, and configurations on request.
Stainless steel (AISI 304) available — add suffix A to box SKU (e.g., ES3 → ES3A).
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Use Cases
Typical Applications
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Compact instrumentation enclosure for transmitters and sensor pre-amps.
Photovoltaic combiner
DC combiner / junction for small-array PV installations.
Stainless steel (AISI 304) available — add suffix A to box SKU (e.g., ES3 → ES3A).
Enclosures for indoor use only — contact our technical department for outdoor use.
Get a Quote
Request a Quote — Junction ES Series
Contact us for pricing, lead times, and application engineering. Full certification documentation provided with every order.
