Fixed contacts for vacuum circuit breaker usually refers to the circuit in a stationary state, not with the circuit on and off operation and movement of the conductive contact parts, generally used in conjunction with the dynamic contacts, to achieve the connection and disconnection of the circuit. For example, in the high-voltage switchgear, the fixed contact is a fixed part of the installation, when the movable contact and fixed contact, the circuit conductive; movable contact away from the fixed contact, the circuit is disconnected.

No.	Item	Unit	Date
1	Rated Voltage	kV	12/24/40.5
2	Rated Current	A	630/1250/1600/2000/2500/3150/4000
3	Material		Copper T2
4	Surface treatment		Silver-plated

T2 Copper with Silver-Plated Surface

The contact is made from T2 copper - known for its high conductivity - with a silver-plated contact surface. Silver plating reduces contact resistance, minimizes heating at rated current, and provides a stable conductive interface over thousands of operations.

Built to Last - Wear-Resistant and Reliable

Fixed contacts see friction every time the breaker operates. Our contacts are designed with sufficient thickness and surface hardness to withstand the mechanical wear of repeated closing and opening. The result: consistent contact pressure and low resistance over the life of the breaker.

Broad Compatibility

Available for 12kV, 24kV, and 40.5kV breakers, with current ratings covering 630A to 4000A. Compatible with VS1-12, KYN28, and other common platforms. One part number, multiple applications.

Product Applications

High-voltage switchgear: In high-voltage power systems, Fixed contacts for vacuum circuit breaker in high-voltage switchgear are used to connect and disconnect high-voltage circuits. For example, in 10kV, 35kV and other high-voltage switchgear, static contacts are used in conjunction with movable contacts to realize the control and protection of power lines.

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