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Home › Insulation Cover › G10-06
Silicone rubber insulation cover for large terminals & clamps — G10-06
Insulation Cover · Terminal Series
G10-06 — Large Terminal Insulation Cover
The large-size cover in the G10 terminal series, molded for heavy cable lugs, large bolted terminals and clamp connections in the 150–300 mm² conductor range — built for main feeder cables, transformer primary connections, and substation bus joints.
ModelG10-06
SizeLarge — for terminals 150–300 mm²
MaterialHTV Silicone Rubber
Package3 PCS / SET
✔ OEM / ODM · ✔ In-house tooling & molding · ✔ Type-test reports on request · ✔ Reply in 24h
Overview
The G10-06 is the large-size cover in the G10 terminal insulation series, molded for heavy-duty cable lugs, bolted terminals and bus joints in the 150–300 mm² conductor range. This is the terminal size found on main feeder cables, transformer primary connections, MV switchgear bus joints and large-capacity distribution lines — connections that carry hundreds of amps and represent a significant fault-risk point.
At these current levels, terminal heating accelerates pollution tracking and moisture-driven surface degradation. A bare large terminal in a coastal or industrial environment can develop a conductive pollution layer in months. The G10-06’s thick HTV silicone body provides robust insulation coverage that sheds contamination, prevents tracking-path formation, and eliminates the phase-to-ground clearance vulnerability at the connection point.
Part of the 4-size G10 family — if G10-06 is too small or large, check G10-05 (50–150 mm²) or G10-07 (>300 mm²). Molded from HTV silicone — hydrophobic, UV-stable, anti-tracking, flame-retardant. Slip-on cap design; live-line installable. Custom dimensional adjustments and OEM branding available.
Specifications
| Model | G10-06 |
|---|---|
| Size | Large — for terminals and cable lugs 150–300 mm² |
| Material | High-Temperature Vulcanized (HTV) Silicone Rubber |
| Designed For | Large bolted terminals · main feeder lugs · transformer primary connections · MV bus joints |
| Key Properties | Hydrophobic · UV-resistant · anti-tracking · flame-retardant · self-extinguishing |
| Operating Temperature | -60 °C ~ +200 °C |
| Color | Red (standard); Grey and custom available |
| Installation | Slip-on / cap-type; live-line installable |
| Package | 3 PCS / SET |
| Standard | IEC / GB compliant; ISO 9001 factory |
| Sibling Models | G10-02 (small) · G10-05 (medium) · G10-07 (extra-large) |
📄 DatasheetLarge-terminal dimensional drawings and selection guide for the full G10 series.Get the Datasheet →
Key Features
💪
Heavy-Duty Coverage
Thick-wall HTV silicone body sized for large 150–300 mm² cable lugs — robust insulation for high-current connections.
🌡️
High-Current Thermal Stability
Withstands the elevated operating temperatures of heavily loaded feeder and transformer primary terminals without degradation.
🧹
Anti-Pollution Shedding
Hydrophobic surface prevents conductive contamination build-up on large terminal surfaces — the biggest tracking risk on MV equipment.
🛡️
Clearance Enhancement
Adds effective insulation between phases on closely-spaced large terminals where bare-metal phase-to-phase clearance is marginal.
☀️
Decades Outdoors
UV-stable, ozone-resistant, -60°C to +200°C — designed for permanent outdoor installation on critical feeder connections.
📊
Full G10 Coverage
One supplier, four sizes — consistent material and quality from your smallest control-wire terminal to your biggest feeder lug.
Applications
🔌
Transformer Primary Bushings
Insulating MV primary-side cable lug connections on distribution transformers up to several MVA.
🏛️
Main Feeder Cable Terminations
Large cable lug covers where underground feeder cables terminate at overhead riser poles or switchgear.
🔗
MV Bus Joints
Insulating bolted busbar connection points in MV switchgear and substation bus runs.
🏭
Industrial MV Connections
Heavy cable terminations in plant substations, mining switchgear, and large motor feeders.
Frequently Asked Questions
How does G10-06 differ from G10-05 in practice?
G10-06 is geometrically larger — wider lug cavity, taller body, thicker wall — to accommodate the bigger palm lugs and heavier bolts used on 150–300 mm² cables. If your terminal palm width exceeds ~40 mm or your bolt is M16 or larger, you likely need G10-06. Send dimensions and we’ll confirm.
Is the silicone thick enough for high-pollution environments?
Yes — G10-06 has a thicker wall than the smaller G10 sizes, providing extra creepage distance and mechanical robustness for the most demanding outdoor and industrial environments.
Can G10-06 be installed on energized 33 kV terminals?
Yes — the cover is designed for distribution-class voltages up to 40.5 kV. The slip-on cap can be installed with hot-stick tools on live equipment, following standard live-line procedures for the voltage class.
What if my terminal is between G10-06 and G10-07 sizes?
Send us the exact terminal and lug dimensions — we can adjust the G10-06 mold (increase cavity size) or use the G10-07 mold with a filler, depending on how close you are to either size. We’ll recommend the best approach.
Lead time and MOQ for G10-06?
Low-MOQ samples: 3–5 days. Production volumes: 7–15 days. Volume pricing available. We can also supply mixed G10 sets (e.g., 3 × G10-02 + 6 × G10-05 + 3 × G10-06) for projects with varied terminal sizes.
Need G10-06 for Your Large Feeder Terminals?
Send terminal photo or lug dimensions — we’ll confirm fit and quote within 24h.