HEX 33 kV High Voltage Copper Terminals & Connectors – Single Hole, Double Hole, 25 to 630 sq mm

HEX high voltage copper terminals are designed for cable terminations up to 33 kV. They are made from high-purity copper tube, annealed and tin plated; the extended barrel improves both electrical and mechanical performance, and there is no inspection hole, so moisture cannot enter the crimped joint — making them suitable for outdoor use. Matching single-hole terminals (HVCT), double-hole terminals (HVCT 2E) and in-line connectors (HVCC) are made from 25 to 630 sq mm. Made by HEX, the brand of Brass Copper & Alloy (I) Ltd., Mumbai — an ISO 9001 company whose products are tested by CPRI (India), UL (USA), KEMA (Netherlands) and SIRIM (Malaysia).

At a glance

• Voltage: up to 33 kV
• Material: high-purity copper tube, annealed and tin plated
• Design: extended barrel; no inspection hole
• Single-hole terminals: HVCT 25–630 sq mm, stud 8–20 mm
• Double-hole terminals: HVCT 2E 25–630 sq mm, 44.5 mm hole spacing
• Connectors: HVCC 50–630 sq mm

Why choose HEX 33 kV terminals

• Made for HV — designed for applications up to 33 kV.
• Extended barrel for better electrical and mechanical performance.
• Moisture-proof crimp — no inspection hole, so suitable outdoors.
• Annealed copper crimps uniformly; tin plating resists corrosion.
• Complete set — single-hole, double-hole and in-line connectors in the same sizes.

Specifications

• HVCT single hole: 25 sq mm (stud 8, 10, 12) · 35 (12, 16) · 50 (12, 16) · 70 (12, 16) · 95 (12, 14, 16) · 120 (12, 14) · 150 (12, 14) · 185 (14) · 240 (14) · 300 (14) · 400 (14, 16, 20) · 500 (16, 20) · 630 sq mm (16, 20)
• HVCT overall length (J): 65 mm (25 sq mm) to 165 mm (630 sq mm)
• HVCT 2E double hole: HVCT-25 2E10, 35 2E10, 50 2E12, 70 2E12, 95 2E12, 120 2E12, 150 2E12, 185 2E14, 240 2E14, 300 2E16, 400 2E16, 500 2E20, 630 2E20; hole spacing 44.5 mm; J 123–206.5 mm
• HVCC connectors: HVCC-50, 70, 95, 120, 150, 185, 240, 300, 400, 500, 630; length 85 mm (50 sq mm) to 165 mm (630 sq mm)
• Tolerance: ± 3%
• Material / finish: high-purity copper, annealed, tin plated

Where it is used

• 11, 22 and 33 kV cable terminations in substations and RMUs
• HV motor and transformer cable boxes
• Solar and wind farm MV collection systems
• Outdoor HV terminations

Which HEX copper lug do I need?

• Standard UL-listed tubular lugs — the general-purpose copper lug, 1.5–1000 mm², with inspection hole.
• Economy range — the same job for 35–1000 mm² where a lighter lug is acceptable.
• Bell mouth — flared entry for fast insertion of flexible or fine-stranded conductors.
• Without inspection hole — sealed barrel for damp or outdoor locations.
• Long barrel, 2-hole or 4-hole — longer crimp or anti-rotation palm for heavy terminations.
• 33 kV terminals (this page) — for HV cable terminations.

Related products

• HEX tubular compression copper lugs up to 33 kV
• HEX copper lugs without inspection hole
• HEX aluminium splices for LV & MV
• HEX long barrel aluminium lugs for XLPE

Frequently asked questions

What voltage are HEX HVCT terminals for?

High voltage applications up to 33 kV.

Why is there no inspection hole?

So that moisture cannot enter the crimped joint — which also makes the terminals suitable for outdoor applications.

Are double-hole 33 kV lugs available?

Yes — HVCT 2E double-hole terminals from 25 to 630 sq mm with 44.5 mm hole spacing.

Is there a matching connector?

Yes — HVCC in-line connectors from 50 to 630 sq mm.

How should the lug be crimped?

Use a crimping tool and die matched to the cable size, and crimp from the palm end towards the barrel end.

Where can I buy HEX cable lugs in India?

From Jai Enterprises, which supplies HEX cable lugs, terminals and connectors across India from Bhilai and Raipur, Chhattisgarh. Call +91 9340081159 with the product codes or cable sizes and quantities.

How to order

Supplied by Jai Enterprises, despatched from Bhilai and Raipur, Chhattisgarh, to sites across India. To request a price, call +91 9340081159 or send an enquiry from this page with your quantity and site details, and we will confirm availability, lead time and the right model for the job.