
Circuit Breaker Contact Assemblies
Material: AgW/CuCr composites
Spec: 100kA interrupting capacity, 30k mechanical operations
Standard: IEC 60947-2
Motor Starter Contact Kits
Material: AgNi30 with arc runners
Spec: AC-3 duty cycle, 1M electrical cycles
Compliance: UL 508
Railway Pantograph Contact Strips
Material: Cu-impregnated carbon with Ag coating
Spec: 25kV/1kA continuous current, 300km/h dynamic performance
Standard: EN 50206
EV Battery Disconnect Units
Material: AgSnO contacts with laser-welded terminals
Spec: 900V DC, 500A peak current
Certification: ISO 8820-8
Parameter | Specification | Buyer Requirements | Testing Standard |
---|---|---|---|
Base Material | Copper Alloy | High conductivity (≥80% IACS) or corrosion resistance per application needs | ASTM B187 / ASTM A240 |
Contact Material | AgCdO (8-15%), AgSnO (6-12%), AgNi (10-20%), or Au-plated (0.5-5µm) | Arc erosion resistance, low contact resistance (<0.5mΩ) | IEC 60413 / MIL-G-45204 |
Rated Current | 10A-500A (AC/DC) | Must match application load (e.g., 250A for EV charging) | UL 508 / IEC 60947-1 |
Voltage Rating | 12V-1000V | Industry-specific (e.g., 800V for EV, 480V for industrial) | IEC 60664-1 |
Operating Temperature | -40°C to +150°C (standard); -65°C to +250°C (high-temp) | Aerospace: -65°C to +200°C; Automotive: -40°C to +125°C | ISO 16750-4 / MIL-STD-810 |
Mechanical Life | 50k-1M cycles | Industrial: 100k+ cycles; Medical: 50k+ with <10% resistance drift | IEC 60512 / EIA-364 |
Electrical Life | 10k-100k cycles (at rated load) | Data centers: 50k+ cycles @ 100A; Renewables: 25k+ @ 150A | UL 1054 / IEC 61058 |
Contact Force | 2N-20N | High-vibration apps (e.g., aerospace): ≥10N; Consumer electronics: 2-5N | DIN 41640 / EIA-364-04 |
Insulation Resistance | ≥100MΩ (500VDC) | Medical/defense: ≥1GΩ; Industrial: ≥100MΩ | IEC 60664-1 / IPC-9201 |
Dielectric Strength | 1kV-5kV AC (1 min) | EV/high-voltage: ≥2.5kV; Telecom: ≥1.5kV | UL 840 / IEC 60112 |
IP Rating | IP65-IP69K | Marine/offshore: IP68; Automotive: IP67 | IEC 60529 |
Compliance | RoHS/REACH, UL/CE, ISO 9001 | Region-specific (e.g., CE for EU, UL for North America) | Directive 2011/65/EU |

Inner package:vaccum plastic bag
Outside package:carton package;
Generally, air freight can be chosen, but sea freight is also an option.

Q1: Are you trading company or manufacturer ?
A: We are factory and Provide a variety of hardware stamping products and CNC products OEM and ODM solutions.
Q2: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q3: If I wish to send an electronic drawing to you, what types of files can you accept?
A: We accept many formats, such as DXF, DWG and STP.
Q4.What is the shipping method?
A:It could be shipped by sea,by sea or by express(EMS,UPS,DHL,TNT,FEDEX and ect). Please confirm with us before placing orders.
If you have another question, pls feel free to contact us.