The **BKPCB-2-R** is a specific electronic component from the **Eaton (formerly Bussmann)** brand. It is an automotive-style, plug-in circuit breaker designed for high-reliability protection in low-voltage DC circuits. --- ## 1. Technical Specifications The following table highlights the primary electrical and physical characteristics of the device: | Feature | Specification | | :--- | :--- | | **Manufacturer** | Eaton (Bussmann Series) | | **Part Number** | BKPCB-2-R | | **Current Rating** | 2 Amps | | **Voltage Rating** | 28V DC | | **Reset Type** | Type I (Auto-Reset) | | **Termination** | Plug-in / PCB Mountable | | **Operating Temperature** | -40°C to +85°C | | **Housing Material** | UL-Rated 94V-0 Thermoplastic | --- ## 2. Key Features & Functionality ### Auto-Reset Mechanism (Type I) Unlike standard fuses that blow and must be replaced, the BKPCB-2-R is a **Type I Auto-Reset** breaker. * **How it works:** When an overcurrent condition occurs, the internal bimetallic strip heats up and opens the circuit. * **Resetting:** Once the device cools down, it automatically closes the circuit again. This continues until the fault is cleared or the power source is removed. ### Footprint & Design * **PCB Compatibility:** The "PCB" in the part number indicates it is designed for Printed Circuit Board applications. * **Color Coding:** These breakers are often color-coded to denote their amperage for easy identification during maintenance. --- ## 3. Common Applications The BKPCB-2-R is typically used in environments where replacing a fuse is difficult or where temporary surges are expected. 1. **Automotive Systems:** Protecting power windows, door locks, and accessory circuits. 2. **Marine Electronics:** Used in panels for bilge pumps or navigation lights. 3. **Heavy Equipment:** Protection for sensors and control modules in agricultural or construction machinery. 4. **Battery Chargers:** Limiting current to prevent thermal runaway. --- ## 4. Part Number Breakdown Understanding the nomenclature helps in selecting the right variant: | Segment | Meaning | | :--- | :--- | | **BK** | Bulk packaging code | | **PCB** | Product series (Plug-in Circuit Breaker) | | **2** | 2 Amp current rating | | **R** | RoHS compliant |