Busbar Insulating Shroud (BUSBOOT, PVC)
BUSBOOT is a flexible, PVC electrical-insulating boot/shroud for busbar and switchgear connections up to 36 kV — UL Certified (File No. E335936) and tested to ANSI C37.20.2 for medium-voltage switchgear.
- UL File E335936
- ANSI C37.20.2
- ASTM D149
Choose a size
Selection Chart
| Voltage | Thickness(min.) |
|---|---|
| 3.3 kV | 1.25 mm |
| 12.0 kV | 2.00 mm |
| 18.0 kV | 2.50 mm |
| 24.0 kV | 3.00 mm |
Source: GALA BUSBOOT Vinyl catalogue sheet, Issue 2, February 2024.
Dimensions & Drawings
Busboot installs, removes or replaces in minutes over busbar joints, tees and elbows, and is also known as a busbar connection shroud or protection shroud.
Reducing air clearance around the connection lets the panel be designed smaller, cutting material cost through shorter busbar lengths and less sheet metal.
Covered on this page
- Recommended Thickness :
- Technical Drawing
Features & Benefits
- UL Certified (File No. E335936); tested to ANSI C37.20.2 for MV switchgear up to 36 kV
- Recommended thickness by voltage: 3.3 kV = 1.25 mm, 12 kV = 2.00 mm, 18 kV = 2.50 mm, 24 kV = 3.00 mm, 38 kV = 4.50 mm
- Dielectric strength 16 kV/mm (min., ASTM D149); continuous operating temperature −20°C to 115°C (IEC 216)
- Flammability: pass to UL 94-V0
- Installs, removes or replaces in minutes; complete with fasteners
- Highly resistant to UV rays and ozone; suitable indoor or outdoor
- Custom shapes and connections; new design moulds within a week
Applications
- Insulating busbar and switchgear connections up to 36 kV
- Compact panel design — reduces air clearance around busbar joints (tees, elbows)
- Cutting material costs via shorter busbar lengths and less sheet metal
Standards & Compliance
- UL File E335936
- ANSI C37.20.2
- ASTM D149
- ASTM D638
- ASTM D792
- ASTM D2240
- IEC 216
- UL 94-V0
FAQs
Frequently Asked Questions
What is the Busbar Insulating Shroud used for?
It is used for:
- Insulating busbar and switchgear connections up to 36 kV
- Compact panel design — reduces air clearance around busbar joints (tees, elbows)
- Cutting material costs via shorter busbar lengths and less sheet metal
How do I choose the right size?
Use the selection chart on this page: it lists every code with its dimensions. If you are not sure which fits, send the dimensions you are working to with the form below.
Which standards and test methods are quoted for it?
These:
- UL File E335936
- ANSI C37.20.2
- ASTM D149
- ASTM D638
- ASTM D792
- ASTM D2240
- IEC 216
Can I get a quote, a sample or a size that is not listed?
Send your cable details, quantity and application with the "Request a Quote or Sample" form at the foot of this page. For a size or variant that is not in the chart, describe what you need there, or use Technical support at the top of the page, and the technical team will confirm what can be supplied.

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