The **D4C0112N-R60F** is a precision-engineered rotary switch, typically manufactured by **Electroswitch**. This specific model belongs to the D4 series, known for its rugged construction and reliability in industrial and military-grade applications. --- ## Technical Specifications Below are the primary electronic and mechanical characteristics of the D4C0112N-R60F: | Feature | Specification | | :--- | :--- | | **Switch Type** | Rotary | | **Number of Positions** | 12 Positions | | **Number of Poles** | 1 Pole | | **Contact Rating** | 0.5A @ 125VAC / 0.25A @ 250VAC | | **Termination Style** | Solder Lug | | **Actuator Type** | Round Shaft | | **Index Angle** | 30° | | **Mounting Type** | Panel Mount | --- ## Key Components & Construction ### 1. Contact Mechanism * **Non-Shorting (Break-Before-Make):** The "N" in the part number usually signifies a non-shorting contact arrangement. This means the connection to the previous position is broken before the connection to the next position is established, preventing momentary shorts between circuits. * **Materials:** Typically features silver-plated or gold-flashed brass contacts to ensure low contact resistance and long-term durability. ### 2. Housing and Insulation * **Ceramic or Diallyl Phthalate (DAP):** The "wafer" (the deck holding the contacts) is often made of high-grade insulation materials to withstand high voltages and prevent arcing. * **Open Frame Design:** This allows for visual inspection of the contacts and is common in high-reliability manual switching. ### 3. Mechanical Detent * The **30° indexing** provides a tactile "click" between each of the 12 positions. This is achieved via a spring-loaded ball bearing mechanism within the switch body. --- ## Typical Applications Due to its robust build, the D4C0112N-R60F is frequently found in: * **Test & Measurement Equipment:** For selecting different ranges or modes. * **Audio Equipment:** Used in high-end amplifiers or studio gear for input selection. * **Industrial Controls:** Managing multiple circuit paths in heavy machinery. * **Communication Systems:** Frequency or channel selection. --- ## Ordering Nomenclature Breakdown (Typical) While internal codes vary, the part number can generally be decoded as: * **D4:** Series identifier (Heavy duty/Industrial). * **C:** Frame/Size code. * **01:** Number of poles (1 Pole). * **12:** Number of positions (12 Positions). * **N:** Non-shorting contacts. * **R60F:** Specific suffix for shaft length, flat orientation, or specialized hardware.