shenxing ceramic High Temperature Alumina Ceramic train shunt resistance ceramic insulator

The train shunt resistance ceramic insulator is a specialized electrical component designed for railway systems, integrating a high-insulation ceramic base with a shunt resistance element. It ensures safe, stable current shunting (for overload protection or signal transmission) while isolating the shunt from the train’s metal chassis, critical for maintaining reliable operation of train traction systems, braking circuits, and signal devices.

Technical Parameters

Application

• Ceramic Base Material: High-purity alumina ceramic (Al₂O₃ content ≥95%) or steatite ceramic (for cost-sensitive applications), selected for railway-grade insulation and mechanical durability.

• Electrical Performance:

• Insulation Strength: ≥15 kV/mm (at 25°C, 50Hz) to prevent leakage current between shunt and chassis.

• Volume Resistivity: ≥10¹⁴ Ω·cm (dry condition), ensuring effective electrical isolation.

• Shunt Resistance Range: 10 mΩ–10 Ω (customizable per train circuit requirements), with resistance tolerance ≤±5%.

• Mechanical & Environmental Resistance:

• Compressive Strength: ≥800 MPa (alumina grade) to withstand vibration and mechanical impact during train operation.

• Operating Temperature: -40°C to +120°C (adapts to extreme cold/hot railway environments).

Advantages

1. we support OEM and ODM;
2. We have a professional R&D team and technical support;
3. We provide real-time logistics update information;
4. We support 24-hour online service;
5. We support T/T,L/c payment;
6. We have a professional QC team to check the quality before delivery.

Certificate

FAQ

1. How can you get quotation?
Please kindly send me your drawing with technic requirement and demand quantity.
If you don't have the drawing, please kindly courier samples to us. we will quote our best price in 24 hours.

2. How can you get samples?
We can supply free samples if we have them in stock. If we haven't produce the products, we can supply some free samples after getting tool fee. Please take note that the courier fee should be at destination.

3. What’s the lead-time for samples and batch orders?
It is 18days for supplying samples. It is around 25days for batch orders.

4. Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.