BAOMAIN 40A Rotary Cam Changeover Switch AC 660V 3-Phase 12-Terminal SZW26-40/D303.3 1-Pack 3-Position Latching Universal Cam Switch for Motor Reversing and Power Supply Transfer

Professional 3-Position Cam Changeover SwitchThe BAOMAIN SZW26-40/D303.3 is a high-performance universal rotary cam switch designed for complex circuit switching. With its 12-terminal architecture, it offers a reliable solution for industrial power transfer and motor control tasks.Simplified Wiring & Installation:Step 1: Ensure power is disconnected. Prepare a panel cutout matching the 64x64mm front plate and 48mm mounting hole pattern.Step 2: Consult the internal connection diagram provided on the switch housing. This 3-phase switch uses 4 terminals per phase to manage the 1-0-2 logic.Step 3: Securely connect your leads to the screw terminals. In Position 1, specific internal circuits close; in Position 0, all terminals are disconnected; in Position 2, the alternate circuits engage.Step 4: Mount the switch securely using the four included screws and ensure the handle moves smoothly between all three positions.Professional Note: Always verify your wiring configuration with a multimeter before energizing the circuit to ensure the switching logic matches your specific application requirements. Feature plastic external material, 3 positions , latching action type, 12 screw terminals, fit for 1.2cm panel thickness. Changeover switch mainly suitable for electrical wiring in the power switch and Squirrel cage type asynchronous motor start-up, reversing, speed switches, also can make the conversion of the control circuit.

• Heavy-Duty Industrial Performance: Rated for a 40A thermal current (Ith) and 660V insulation voltage (Ui), this universal cam switch is built to handle high-power industrial applications with consistent reliability and safety.
• Premium Silver Alloy Contacts: Engineered with high-conductivity silver alloy contact points to ensure superior electrical performance, reduced arcing, and exceptional oxidation resistance for an extended service life in demanding industrial environments.
• Versatile 1-0-2 Latching Logic: Features 3 positions (Position 1 - OFF - Position 2) with a precise latching mechanism. The 12-terminal, 3-phase design makes it an ideal solution for manual motor control and power source changeover.
• Durable IP54 Construction: The front panel is rated IP54, providing protection against dust and water splashes. Constructed from high-quality flame-retardant plastic, it withstands rigorous use in workshops and distribution boxes.
• Standardized Compatibility: With a standard 48mm mounting hole distance and compact 64x64mm panel size, this 1-Pack unit is designed for easy integration into existing control panels. Ideal for keeping as a high-spec replacement or for new industrial projects.