A203SYZQ04 is a DPDT (double-pole double-throw) toggle switch from the Gemini Series Alcoswitch A Series, featuring a vertical wire lug terminal configuration with a long bat actuator. The switch employs silver contacts with a contact rating of 2 A @ 250 VAC or 5 A @ 125 VAC, and maintains an insulation resistance of 1,000 megohms minimum at 500 VDC with a dielectric strength of 1,000 volts RMS. The switch is constructed with a machined brass toggle plated with heavy nickel, a rigid one-piece die-cast copper-flashed frame, and epoxy-sealed terminals for enhanced durability. It operates reliably across a temperature range of -20°C to +85°C and supports up to 30,000 electrical cycles, making it suitable for industrial control applications, instrumentation panels, and equipment requiring robust switching performance.