The **W2CA-5B4-R** is a specific model within the **W2CA Series** of industrial limit switches, typically manufactured by **Omron** or similar industrial automation providers. These devices are used as electromechanical sensors to detect the presence or absence of an object through physical contact. --- ## Technical Specifications The following table summarizes the key electrical and physical characteristics of the W2CA-5B4-R: | Parameter | Specification | | :--- | :--- | | **Component Type** | Industrial Limit Switch | | **Actuator Type** | Roller Lever (likely adjustable) | | **Contact Configuration** | SPDT (Single Pole Double Throw) | | **Current Rating** | Typically 10A at 125/250 VAC | | **Connection Type** | Pre-wired (likely 4 or 5-pin connector/cable) | | **Environmental Protection** | IP67 (Water and Dust resistant) | | **Operating Force** | Varies by lever length (approx. 1.5N to 5N) | --- ## Electronic & Internal Components The W2CA-5B4-R consists of several critical internal assemblies that allow it to function in harsh environments: ### 1. Contact Block (Switching Element) The heart of the device is a microswitch assembly. * **Mechanism:** Uses a snap-action mechanism to ensure fast switching regardless of the speed of the actuator. * **Material:** Contacts are usually made of **Silver (Ag)** or gold-plated silver for high conductivity and oxidation resistance. ### 2. The Actuator (Roller Lever) The "R" in the suffix usually denotes a Roller Lever. * **Purpose:** Converts linear or rotary mechanical force into internal movement. * **Material:** Often stainless steel or high-strength resin to prevent wear during repeated contact with moving parts. ### 3. Wiring and Connection (The "5B4" Suffix) The specific code "5B4" usually refers to the electrical connection style: * **Connector Type:** Typically indicates a **M12 Circular Connector** or a specific cable lead-out. * **Pin-out:** In most configurations, the pins represent Common (COM), Normally Open (NO), and Normally Closed (NC) terminals, plus a Ground (GND) wire. ### 4. Housing and Sealing * **Casing:** Die-cast aluminum or heavy-duty plastic. * **Gaskets:** Nitrile rubber (NBR) or silicone seals are used at the actuator head and the cable entry point to maintain the IP67 rating. --- ## Typical Applications * **Conveyor Systems:** Detecting the position of pallets or boxes. * **CNC Machinery:** Sensing the "home" position or travel limits of the tool head. * **Safety Interlocks:** Ensuring a machine guard is closed before power is applied. ---