Compact 4-Pin Illuminated Rocker Switch 21mm x 13mm Mini Power Control
This Compact 4-Pin Rocker Switch is a versatile power management solution designed for precision electronics and space-constrained control panels. Featuring a specialized 20.72mm x 13.00mm mounting profile, this switch provides a Double Pole Single Throw (DPST) configuration, allowing for the complete isolation of two separate lines in a compact subminiature form factor.
Key Product Features
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Compact Subminiature Profile: Specifically engineered for a 20.72mm x 13mm panel cutout, making it ideal for sleek modern dashboard designs and portable electronic devices.
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4-Pin Dual-Line Control: The 4-terminal architecture allows the switch to simultaneously open or close two independent circuits, typically used to disconnect both Live and Neutral lines for enhanced safety.
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Vibrant Color Selection: Available in four distinct variations to suit your interface needs: Illuminated Red, Green, and Blue, as well as a sleek Solid Matte Black for non-lit applications.
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High-Visibility Status Indicator: The Red, Green, and Blue models feature translucent actuators with internal lamps that glow when the power is ON, providing immediate visual feedback.
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Snap-In Mounting Efficiency: Built-in side-mounted retention clips ensure a firm, vibration-proof installation into standard rectangular cutouts without extra hardware.
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Durable Silver-Plated Terminals: Equipped with four precision male spade terminals designed for low electrical resistance and secure wire connections.
Technical Specifications
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Switch Type: Subminiature Rocker Switch (4-Pin).
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Operation Mode: ON - OFF.
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Contact Arrangement: DPST (Double Pole, Single Throw).
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Mounting Dimensions: 20.72MM X 13MM
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Voltage Rating: Standard AC 250V compatibility.
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Actuator Options: Transparent (Red/Green/Blue) or Opaque (Black).
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Application: Desktop power supplies, coffee machines, small kitchen appliances, DIY laboratory equipment, and marine electronics consoles.
Top 3 Customer Questions & Concerns þ
þ Why does this switch have 4 pins instead of 2?
The 4-pin design is a safety-first configuration. While a 2-pin switch only cuts one wire, this 4-pin model cuts both wires entering the device. This ensures that no residual current remains in the appliance when it is turned off, significantly reducing the risk of electrical shock during maintenance.
Does the light work on both AC and DC systems?
The illuminated models (Red/Green/Blue) contain internal lamps that are typically optimized for AC mains power ($220\text - 250\text$). If used in a low-voltage DC system (like a $12\text$ car battery), the switch will function perfectly as a mechanical power control, but the internal light may not glow or will appear very dim.
þ How do I wire the indicator light correctly?
For the light to function, the 4 pins must be wired as pairs. One side of the switch takes the incoming power (Line/Neutral), and the opposite side connects to your device. When the rocker is flipped to the "I" position, it bridges the internal lamp across the power lines, causing it to illuminate automatically.



