The **D4C0112S-R60C** is a precision **Rotary Switch** manufactured by Electroswitch. This component is designed for industrial and commercial applications requiring high reliability and specific electrical switching configurations. ### 1. Technical Specifications The following table highlights the core electrical and mechanical characteristics of the D4C0112S-R60C: | Parameter | Specification | | :--- | :--- | | **Number of Positions** | 12 Positions | | **Number of Decks** | 1 Deck | | **Number of Poles** | 1 Pole | | **Actuator Type** | Round (Standard Shaft) | | **Contact Rating** | 0.5A @ 125VAC / 0.25A @ 28VDC | | **Circuit Type** | SP12T (Single Pole, 12 Throw) | | **Switching Type** | Shorting (Make-before-break) | | **Mounting Type** | Panel Mount | | **Termination Style** | Solder Lug | --- ### 2. Key Features and Construction * **Shorting (Make-Before-Break):** This specific model is a "shorting" switch. During rotation, the moving contact touches the next position before breaking the connection with the current position. This is critical in audio or power applications to prevent "pops" or transient spikes. * **Rugged Construction:** Part of the D4 series, these switches often feature ceramic or high-grade plastic insulation to ensure high dielectric strength and resistance to moisture. * **Indexed Rotation:** It features a 30-degree indexing angle, providing tactile feedback (a "click") for each of the 12 positions. * **Stainless Steel Shaft:** Designed for longevity and resistance to corrosion in harsh environments. --- ### 3. Pinout and Circuit Schematic The D4C0112S-R60C operates as a Single Pole, 12-Position switch. ```text (Input/Common) | C / | \ / | \ 1 2...12 (Output Terminals) ``` In this configuration: 1. The **Common (C)** terminal is wired to your input signal. 2. As you rotate the knob, the internal wiper connects the Common terminal to one of the **12 output pins**. 3. Because it is a **shorting** switch, when moving from Pin 1 to Pin 2, the wiper will momentarily bridge both Pin 1 and Pin 2. --- ### 4. Typical Applications * **Test Equipment:** Selecting different measurement ranges (Volts, Ohms, Amps). * **Audio Equipment:** Input selectors or gain step controls. * **Industrial Controls:** Mode selection for heavy machinery. * **Communication Devices:** Frequency or channel selection.