Products
butterfly insulator
Butterfly insulators (also called egg-type or guyed insulators) are used for low-voltage household wires, guyed wires and overhead ground wires. ED series dimensions comply with GB/T 4056 and international equivalent standards.

Low voltage butterfly insulator.
- Complies with GB/T 4056 dimensional standards
- Brown or gray glaze
- Low Voltage and Pull Wire Applications
- Sufficient stock
Gallery
butterfly insulator — production photos

ED-series · butterfly / guy strain
Models
Available models
| Code | Voltage class | Mechanical load | Creepage | Standard |
|---|---|---|---|---|
| ED-2B | 1 kV | — | — | GB/T 4056 |
| ED-3B | 3 kV | — | — | GB/T 4056 |
| ED-4B | 6 kV | — | — | GB/T 4056 |
FAQ
Frequently asked questions
Which standards do butterfly insulator comply with?
All butterfly insulator from InsulatorX are type-tested to GB/T 4056. Type-test reports are issued by independent laboratories including CEPRI and KEMA, and buyer factory audits or witness testing are welcome.
What ratings are available for butterfly insulator?
butterfly insulator are supplied across 1–6 kV. Send us your line voltage, span tension and creepage requirement and our engineers will size the right model with margin.
Which butterfly insulator models can I order?
Catalogue models include ED-2B, ED-3B, ED-4B. Custom dimensions, shed profiles, creepage extension and connection markings are available on request.
Can butterfly insulator be supplied for coastal or heavy-pollution lines?
Yes. We raise creepage distance and offer fog / anti-pollution profiles or hydrophobic silicone housings, sized to your site pollution class — typically class III to IV near the coast.
How do I request a quotation and what is the lead time for butterfly insulator?
Email your specifications — voltage, mechanical load, creepage, environment, quantity and INCOTERM — to support@insulatorx.com. We reply within one business day; lead time is 4 to 6 weeks for standard models and 8 to 14 weeks for custom designs, shipped EXW / FOB / CIF / DDP.

