The **KTS-R-125** is a high-performance industrial fuse belonging to the **Limitron™** series manufactured by Eaton Bussmann. It is specifically designed as a current-limiting fuse for high-voltage and high-current applications. --- ### ## Technical Specifications Below is a breakdown of the electrical characteristics of the KTS-R-125: | Feature | Specification | |:---|:---| | **Part Number** | KTS-R-125 | | **Ampere Rating** | 125 Amps | | **Voltage Rating (AC)** | 600 Vac | | **Interrupting Rating** | 200,000 Amps RMS Symmetrical | | **Fuse Class** | Class RK1 | | **Type** | Fast-Acting / Current Limiting | | **Body Material** | Melamine Glass Tube | --- ### ## Key Electronic Features 1. **Current Limitation:** As a Class RK1 fuse, the KTS-R-125 is highly current-limiting. This means it can react extremely fast to a short circuit, preventing the current from reaching its maximum peak. This protects downstream electronic components from thermal and mechanical stress. 2. **Rejection Feature:** The "R" in KTS-R signifies a **Rejection** feature. The fuse has a specific physical notch in the end blade that prevents it from being replaced by a fuse with a lower interrupting rating (like a Class H or K fuse). 3. **High Interrupting Capacity:** With a rating of **200kA**, it can safely handle massive surges in industrial environments without exploding or causing damage to the fuse holder. --- ### ## Internal Construction The internal electronic parts of the fuse include: * **Pure Silver Elements:** Provides high conductivity and predictable melting points for fast-acting response. * **Granular Quartz Fill:** Surrounds the element to quench the arc formed during a blow, absorbing heat and pressure. * **End Caps:** Nickel-plated brass or copper for low resistance and high corrosion resistance. --- ### ## Typical Applications * **Feeder Circuits:** Protection for main power lines in factories. * **Branch Circuit Protection:** Ensuring individual machine segments are isolated during faults. * **Semiconductor Protection:** Often used to protect power rectifiers and sensitive electronic drives that cannot handle long-duration overloads.