Ceremic terminal block
Ceramic terminal blocks, also termed porcelain connectors or 2 pole ceramic connecting terminals, are produced in 2 way configurations rated for 15A, 25A, 30A, or 50A. Built with high-frequency steatite ceramic bodies and internal copper parts, these connecting blocks withstand high temperatures in demanding electrical assemblies. Dimensions, terminal assemblies, and electroplating are produced according to customer specifications rather than off-the-shelf catalog limits.
Published Data for Ceremic terminal block
Every value below is taken from NOWARUN's own specification for this part.
| Product Type | Ceramic terminal block / porcelain connector / 2 pole ceramic connecting terminals |
|---|---|
| Body Material | High-frequency steatite (steatile) |
| Internal Parts Material | Copper |
| Current Ratings | 15A, 25A, 30A, 50A |
| Poles / Ways | 2 way / 2 pole |
| Surface Finish on Metal | Electroplated or standard copper |
| Packaging | PP bag, carton, crate, box or to customer requirement |
| Origin | Hangzhou, Zhejiang, China |
Key Benefits
- High-frequency steatite porcelain body withstands high temperature testing without thermal degradation
- Internal copper terminal parts deliver stable electrical conductivity across 15A to 50A ratings
- Current configurations available in 15A, 25A, 30A, and 50A ratings for varied electrical equipment loads
- Tight dimensional tolerances ensure reliable fitting into constrained instrument or transformer enclosures
- Internal copper hardware can be electroplated to prevent oxidation and ensure stable wire termination
- Manufactured directly to customer drawings with custom dimensions and customized connector assembly configurations
Problems It Solves
- Plastic terminal blocks melting or distorting when exposed to continuous high operating temperatures
- Standard off-the-shelf ceramic connectors failing to fit tight instrument housing dimensions
- Corrosion and poor conductivity on bare wire terminations resolved through electroplated copper parts
- Mismatched electrical ratings causing premature terminal failure under 15A to 50A service loads
Who It Is For
- Electrical transformer engineers needing high-temperature porcelain terminal connectors
- Industrial instrument designers requiring compact 2 pole ceramic connection blocks
- Automotive and equipment electrical harness assemblers sourcing custom steatite terminals
- Procurement managers sourcing custom-dimension copper and ceramic terminal assemblies
Application Scenarios
- High-temperature wiring junctions in industrial power transformers and related electrical machinery
- Power distribution connections within electrical instrumentation and measurement equipment
- Terminal connections in automotive electronics and machine construction wiring harnesses
- High-heat power terminations in commercial food processing machines and cooking equipment
- Internal wiring assemblies in televisions, display units, and industrial control cabinets
Technical Features
- High-frequency steatite porcelain body engineered for high-temperature resistance
- Available in 2 way, 2 pole wiring configurations
- Current rating options include 15A, 25A, 30A, and 50A
- Conductive internal components manufactured from copper
- Copper parts can be supplied with custom electroplating
- Block dimensions and internal hardware assemblies customized to buyer drawings
Materials
- High-frequency steatite for heat resistance, electrical insulation, and tight dimensional control
- Copper for internal conductive terminal parts and wire clamping screws
- Electroplated coatings on copper hardware to guard against contact corrosion
How It Is Made
- 1
Review of customer dimensional drawing, current rating requirement, and hardware assembly layout
- 2
Precision pressing and firing of the high-frequency steatite ceramic block body
- 3
Fabrication and machining of internal copper conductive terminal components
- 4
Application of electroplating onto copper hardware components when specified
- 5
Assembly of copper terminals, clamping parts, and steatite porcelain bodies
- 6
Final dimensional inspection and secure packaging in PP bags, cartons, or crates
Quality Control
- Inspection of small-tolerance dimensions across the steatite ceramic body to match drawings
- Evaluation under high temperature testing to verify structural and thermal integrity
- Fit and thread verification of copper terminal assemblies prior to shipping
- Verification of electroplating coverage on all internal copper contact hardware
Customization Options
- Ceramic body exterior dimensions formed to customer drawing specifications
- Selection of current capacity ratings across 15A, 25A, 30A, or 50A
- Multiple assembly configurations for internal copper contact parts and clamping fasteners
- Electroplating surface finish options for internal conductive copper components
Compared With the Alternatives
| Alternative | Honest trade off |
|---|---|
| Plastic terminal blocks | High-frequency steatite withstands high temperatures without melting, though ceramic bodies are more rigid |
| Standard catalog porcelain blocks | Custom steatite blocks fit proprietary dimensions and assemblies, though they require custom production runs |
| Brass-contact terminal connectors | Copper internal parts offer superior electrical conductivity, though raw copper typically benefits from electroplating |
Use Guide
- Provide technical drawings indicating exterior body dimensions, hole centers, and mounting points
- Specify the required current rating between 15A, 25A, 30A, and 50A
- Indicate whether the internal copper parts require electroplating or standard plain finish
- Confirm the target assembly configuration for the internal copper hardware and terminal screws
- Inspect the porcelain block for mechanical shock damage prior to wiring installation
Ceremic terminal block Questions
What current ratings are available for these ceramic terminal blocks?
These 2 way steatite terminal blocks can be supplied in ratings of 15A, 25A, 30A, or 50A based on your drawing requirements.
What material is used for the insulating body and internal hardware?
The insulating body is made of high-frequency steatite ceramic, while the internal conducting components are made of copper.
Can the copper terminal components be electroplated?
Yes. The internal copper parts can be supplied electroplated according to your specification.
Can you manufacture custom dimensions and terminal assemblies?
Yes. Dimensions, hole layouts, and internal hardware assembly configurations are produced directly to customer specifications.
How are the ceramic terminal blocks packaged for overseas shipment?
Standard packaging includes PP bags, cartons, crates, or boxes, or we can package them to your specific customer requirements.
What industries utilize these steatite connecting terminals?
They are used across the power industry, transformer machinery, electrical instruments, televisions, cars, and related equipment.
Related Products

Alumina Ceramic
NOWARUN manufactures custom alumina ceramic plates from aluminium oxide (Al2O3) to customer drawings and data…
View specifications
Ceramic insulator
Ceramic insulators manufactured by NOWARUN are produced from alumina ceramic based on aluminium oxide (Al2O3) to…
View specifications
5 Axes CNC parts
5 axes CNC machining handles complex geometry, curved surfaces and multi-angle features in fewer setups, keeping…
View specifications
Shaft
Precision shafts transmit torque and locate rotating components, and NOWARUN machines them directly to customer…
View specificationsQuote Ceremic terminal block to Your Drawing
Send the print with the quantity, material, tolerance and surface treatment. Missing details get asked about, not assumed.
