The **M2REB-R22-R/N** is a specific model identifier typically associated with **Industrial Control Switches**, specifically a **22mm Emergency Stop (E-Stop) Pushbutton Switch** often manufactured by brands like IDEC or similar industrial automation suppliers. Below is a breakdown of its electronic and mechanical components. --- ### 1. Technical Specifications The part number describes a specific configuration of the switch assembly. | Feature | Specification | | :--- | :--- | | **Mounting Diameter** | 22mm (Standard Industrial Size) | | **Action Type** | Maintained / Latching (Push-lock, Turn-reset) | | **Contact Configuration** | 2NC (2 Normally Closed contacts) | | **Illumination** | Non-Illuminated (denoted by the /N suffix) | | **Operator Shape** | Mushroom Head (Emergency Stop) | | **Color** | Red (R) | --- ### 2. Key Electronic Components #### A. Contact Blocks The "R22" in the part number usually signifies the contact arrangement. For an Emergency Stop, safety standards require **Normally Closed (NC)** contacts. * **Function:** When the button is pressed, the internal bridge breaks the circuit, cutting power to the machinery. * **Rating:** Typically rated for 600V AC/DC with a current capacity of 10A (Thermal). #### B. The Actuator (Mushroom Head) This is the red mechanical interface. It is designed for "Trigger Action," meaning the contacts will not change state until the spring mechanism is fully tripped, preventing "teasing" (holding the switch in a semi-off state). #### C. Reset Mechanism As a **Maintained** switch, it locks into the "Off" position when pressed. It requires a physical twist (Turn-Reset) to release the latch and allow the electrical circuit to close again. --- ### 3. Wiring Diagram Logic In a safety circuit, the M2REB-R22 is wired in series with the control relay or PLC safety input. ```mermaid graph LR Power_Source -->|Wire 1| NC_Contact_1 NC_Contact_1 -->|Wire 2| NC_Contact_2 NC_Contact_2 -->|Wire 3| Safety_Relay ``` --- ### 4. Environmental Ratings These parts are built for harsh industrial environments and usually carry the following protections: * **IP65/66:** Dust-tight and protected against water jets. * **UL/CE Certified:** Meets international safety standards for emergency stop equipment.