The **ZB6-R** refers to a specific sub-component of the Schneider Electric (formerly Telemecanique) **Harmony ZB6** series. This series consists of Ø 16 mm plastic pushbuttons, selector switches, and pilot lights designed for compact industrial control panels. Below is a detailed breakdown of the electronic and mechanical parts associated with the ZB6-R model. --- ### 1. Component Overview The "ZB6-R" usually identifies the **Circular Flush Pushbutton Head** (the physical interface). To function as an electronic part, it must be combined with a contact block and a body assembly. | Component Part | Material/Type | Function | | :--- | :--- | :--- | | **Bezel** | Plastic (Black) | Holds the actuator in place on the panel. | | **Actuator (Button)** | Circular Flush | The physical surface pressed by the operator. | | **Return Spring** | Stainless Steel | Ensures the button returns to the "Open" position (Spring Return). | | **Mounting Base** | ZB6-BZ | Connects the head to the electrical contact blocks. | --- ### 2. Electrical Specifications While the "R" part is the mechanical head, its electronic performance depends on the **Contact Blocks** attached to it (e.g., ZBE-101 or ZBE-102). #### Contact Block Ratings: * **Rated Insulation Voltage (Ui):** 250 V (pollution degree 3) conforming to EN/IEC 60947-1. * **Thermal Current (Ith):** 5 A. * **Contact Operation:** Slow-break. * **Electrical Durability:** 1,000,000 cycles (AC-15 or DC-13). --- ### 3. Assembly Structure To create a complete electronic switch unit using the ZB6-R head, you follow this modular assembly: 1. **The Head (ZB6-R):** The operator interface. 2. **The Body (ZB6-Z):** The interface between the head and the electronics. 3. **The Contact Blocks:** * **NO (Normally Open):** Completes the circuit when pressed. * **NC (Normally Closed):** Breaks the circuit when pressed. 4. **Connection Type:** Usually Faston connectors ($2.8 \times 0.5$ mm) or pins for Printed Circuit Boards (PCB). --- ### 4. Environmental & Technical Data | Feature | Specification | | :--- | :--- | | **Mounting Diameter** | 16 mm | | **IP Degree of Protection** | IP65 (Dust tight, water jet resistant) | | **Operating Temperature** | -25°C to +70°C | | **Vibration Resistance** | +/- 0.75 mm (f= 10...55 Hz) | | **Mechanical Durability** | 2,000,000 cycles | --- ### Summary of Use The ZB6-R is ideal for **low-current applications** and control circuits where panel space is at a premium. It is commonly found in laboratory equipment, small control consoles, and industrial handheld pendants.