The **746-R** is a specific part number typically associated with high-current **Power Pole Connectors** or **Anderson Powerpole** accessories, often used in amateur radio, automotive power systems, and industrial electronics. Below is a detailed breakdown of the electronic specifications and characteristics of the 746-R series (specifically the 15/45A Powerpole housing). --- ### 1. Technical Specifications The 746-R usually refers to the **Red Housing** component of a genderless connector system. | Feature | Specification | | :--- | :--- | | **Part Type** | Connector Housing (Genderless) | | **Current Rating** | Up to 45 Amps (depending on contact used) | | **Voltage Rating** | 600 Volts (AC/DC) | | **Color** | Red (Standard for Positive DC) | | **Material** | Polycarbonate (High-Impact) | | **Contact Material** | Silver-plated Copper (sold separately) | | **Operating Temperature** | -20°C to +105°C | --- ### 2. Key Design Features * **Genderless Design:** The 746-R housing is "genderless," meaning there are no distinct male or female plugs. Two identical connectors simply flip 180 degrees to mate with one another. * **Modular Side Grooves:** The housing features dovetail slots on the sides. This allows multiple units (e.g., a Red 746-R and a Black 747-G) to be slid together to create multi-pole power blocks. * **Stainless Steel Spring:** Inside the housing is a flat leaf spring that maintains constant pressure between the electrical contacts, ensuring low resistance and high reliability. * **Self-Wiping Action:** When mated, the contact surfaces wipe against each other, cleaning the metal of oxidation every time it is plugged in. --- ### 3. Compatible Components To create a functional connection with a 746-R housing, you require the internal metal pins (contacts). | Contact Part # | Wire Gauge (AWG) | Max Current | | :--- | :--- | :--- | | **1332** | 16 - 20 AWG | 15 Amps | | **1331** | 12 - 16 AWG | 30 Amps | | **261G2** | 10 - 14 AWG | 45 Amps | --- ### 4. Common Applications * **Amateur (Ham) Radio:** The standard for 12V DC power distribution (ARES/RACES standards). * **RC Vehicles:** Used in battery packs for drones, cars, and planes due to high vibration resistance. * **Renewable Energy:** Connecting solar panels to charge controllers or battery banks. * **Robotics:** Powering drive motors and control boards. ---