The SZW26-63/2GS power switch is a high-capacity, two-position (OFF-ON) rotary power switch. It features a double-section structure and four sets of parallel silver alloy contacts, optimized for reliably switching currents up to 63A. In the ON position, the contact sets (1-2, 3-4, 5-6, 7-8) are simultaneously connected, providing extremely low contact resistance and excellent heat dissipation. In the OFF position, all contacts are completely disconnected, ensuring safe electrical isolation. The product uses thickened copper conductors and a flame-retardant, high-temperature resistant housing, suitable for AC 440V/DC 240V circuits, with an operating temperature range of -25°C to +40°C. It has a mechanical life of 300,000 cycles and an electrical life of 60,000 cycles (under rated load, operating frequency ≤120 times/hour).
Application Scenarios:
This switch is specifically designed for critical applications requiring direct manual control of high-current main circuits or as a main power isolation switch for equipment.
Main Power Control: Used as the main power input switch or emergency disconnect switch for high-power industrial equipment (such as large electric furnaces, central air conditioning units, and high-power frequency converter cabinets).
High-Current Load Switching: Directly controls the start and stop of heavy loads such as three-phase motors, heating modules, and electrolytic power supplies up to 63A.
Power Distribution System Isolation: Used as an isolation switch for main circuits or important branch circuits in power distribution rooms and power cabinets, providing reliable maintenance and repair disconnection points.
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