The **SVB-H0-R/CE** is a specialized electronic component primarily used in industrial automation and safety systems. It is an **Emergency Stop / Safety Switch Operator** part of the Harmony series (typically associated with Schneider Electric / Telemecanique). Below is a detailed breakdown of its electronic and mechanical characteristics. --- ### 1. General Specifications The SVB-H0-R/CE is an operator head designed to interface with a switch body (such as the Vario series) to facilitate safe disconnection of electrical circuits. | Feature | Specification | |:---|:---| | **Component Type** | Rotary Handle / Operator | | **Color** | Red Handle on Yellow Plate (Standard for E-Stop) | | **Safety Standard** | CE Marked, UL, CSA | | **Locking Mechanism** | Padlockable (up to 3 padlocks) | | **Ingress Protection** | IP65 (Dust-tight and protected against water jets) | --- ### 2. Electrical Functionality While the "H0-R" part specifically refers to the **handle mechanism**, its electronic role is defined by the switch body it controls. * **Isolation Function:** It is designed to act as a **Main Switch Disconnect**. When rotated to the "OFF" position, it physically separates the electrical contacts to ensure no current flows to the downstream machinery. * **Emergency Switching:** The Red/Yellow color scheme indicates its electronic role as an **Emergency Off** device, allowing operators to immediately kill power to a motor or control circuit. * **Contact Configuration:** Usually paired with 3-pole or 4-pole power switch bodies (V02 to V2 range). --- ### 3. Mechanical & Installation Details The electronic reliability of this part depends heavily on its mounting and environmental sealing. #### Mounting Interface The unit uses a **4-hole front mounting** system. The shaft of the handle interacts with the internal switch module inside the electrical cabinet. #### Material Durability * **Handle:** High-resistance plastic. * **Base:** Yellow front plate for high visibility. * **Gasket:** Integrated seal to maintain the IP65 rating of the enclosure. --- ### 4. Application Context In an industrial electronic environment, the SVB-H0-R/CE is used in: 1. **Motor Control Centers (MCC):** As the primary local isolator. 2. **HVAC Systems:** For safe maintenance of fans and compressors. 3. **Machine Tools:** Providing a visible and lockable safety cutoff point. ```yaml # Example Configuration for BOM Part_Number: SVB-H0-R/CE Category: Safety Switch / Operator Compatibility: Vario Switch Bodies (V02 - V2) Safety_Rating: SIL / Category 4 (Depending on entire circuit) ``` ---