The switch shown is a KCD-4 heavy-duty panel-mount rocker switch. The KCD-4 family is available in several circuit configurations, but the 4-pin ON/OFF version shown is generally a DPST (Double Pole, Single Throw) rocker switch. Typical listings specify 16A at 250VAC and 20A at 125VAC. General Specifications Parameter Specification Product Name KCD-4 Rocker Switch Switch Type Rocker / Boat Switch Model KCD-4 Number of Pins 4 Pin Circuit Configuration DPST Function ON / OFF Positions 2 Position Operation Maintained Mounting Type Panel Mount / Snap-In Actuator Rocker Actuator Color Red Housing Color Black Indicator Red Illuminated Type* Terminal Type Blade / Quick-Connect Application Power ON/OFF Control *The exact illumination arrangement depends on the particular KCD-4 variant. Electrical Specifications Parameter Typical Rating Rated Voltage 250 VAC Rated Current 16 A @ 250 VAC Rated Current 20 A @ 125 VAC Switch Configuration DPST Contact Resistance ≤50 mΩ typical Insulation Resistance ≥100 MΩ typical Dielectric Strength ≥1500 VAC typical Electrical Life Up to 10, 000–50, 000 cycles, variant dependent Several current product listings confirm 16A/250VAC for KCD-4 4-pin versions; some specify 20A/125VAC as well. Dimensions A commonly sold KCD-4 version measures approximately 31–33 mm × 25 mm × 30–34 mm, depending on the housing and terminal/indicator configuration. One listing gives 31 × 25 × 34 mm, while another gives approximately 33 × 25 × 30 mm. Dimension Approx. Length 31–33 mm Width 25 mm Height 30–34 mm Panel Cutout Approx. 31 × 22 mm Number of Terminals 4 Important: KCD-4 dimensions are not completely standardized across manufacturers, so the panel cutout should be checked against the actual supplier drawing before production. Material Specifications Component Typical Material Housing Flame-retardant thermoplastic Rocker Polycarbonate / thermoplastic Terminals Brass / copper alloy Contacts Silver alloy / copper alloy Terminal Finish Tin plated Spring Stainless steel / spring steel 4-Pin DPST Working The 4-pin version has two independent switching poles. OFF: Pole 1 → Open Pole 2 → Open ON: Pole 1 → Closed Pole 2 → Closed This allows the switch to disconnect two circuits simultaneously, which is useful for switching both sides of a supply where a DPST configuration is required. Features Heavy-duty rocker design 4-pin DPST configuration ON/OFF operation Red illuminated rocker available Snap-in panel mounting No screws or nuts required for standard mounting High-current switching capability Easy quick-connect terminal wiring Clearly marked I / O positions Suitable for industrial and electrical equipment Applications Industrial control panels Power supplies Inverters Motor control equipment Water dispensers Electrical appliances Machinery Automation equipment Laboratory equipment Automotive and DC applications Electronic instruments Control cabinets Operating Temperature A commonly specified range is approximately -25°C to +85°C. Product Description for Switch Mart KCD-4 4 Pin 16A 250V AC Red Illuminated DPST ON/OFF Rocker Switch The KCD-4 is a heavy-duty panel-mount rocker switch designed for reliable ON/OFF control of electrical equipment. Its 4-pin DPST configuration allows two circuits/poles to be switched simultaneously. The snap-in mounting system provides quick installation, while the red rocker provides clear visual indication of the switch position. Typical KCD-4 versions are rated up to 16A at 250VAC. SEO Keywords KCD-4 Rocker Switch, KCD4 4 Pin Rocker Switch, 16A 250V Rocker Switch, DPST Rocker Switch, Heavy Duty Rocker Switch, Red Rocker Switch, Illuminated Rocker Switch, Boat Rocker Switch, Panel Mount Rocker Switch, ON OFF Rocker Switch, 4 Pin Rocker Switch.
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