7.2kV AC Contactor – Medium Voltage 3-Phase Vacuum Contactor for Industrial Reliability

Engineered for robust performance in demanding environments, the 7.2kV AC Contactor medium voltage 3 phase vacuum contactor delivers dependable switching for industrial Power Systems operating at 50/60Hz. With a standard rating of up to **400A** and compatibility across **7.2kV to 12kV networks**, this contactor excels in frequent control of motors, transformers, and capacitor banks—offering high efficiency with minimal maintenance.

Built around advanced vacuum interrupter technology, it ensures rapid arc extinction, extended electrical life (>60,000 operations under AC-4 load), and exceptional dielectric strength. Its compact footprint and modular design simplify integration into switchgear panels, while precision-engineered contacts maintain consistent performance over **3 million mechanical cycles**.

• Three-phase industrial vacuum switch – optimized for synchronized, high-cycle motor and load control in factories and utilities

• High-cycle medium-voltage contactor – supports frequent operation with low wear and stable thermal performance

• Vacuum-interrupter motor controller – provides spark-free switching and enhanced safety for sensitive high-voltage applications

Featuring a standardized open distance of **5.0 ± 0.5 mm** and precise overtravel (**1.0 ± 0.5 mm**), the contactor guarantees reliable contact alignment and arc management during every operation. When paired with fuses or protective relays, it serves as a cost-effective alternative to full vacuum circuit breakers—ideal for applications where fast, repetitive switching is required without compromising system integrity.

Whether deployed in mining facilities, water pumping stations, or renewable energy substations, this 3-phase vacuum contactor combines durability, safety, and operational economy—making it a smart choice for modern medium-voltage infrastructure.