The **KTS-R-150** is a high-performance industrial fuse belonging to the **Limitron™** series, manufactured by Eaton (Bussmann Division). It is specifically designed to provide high-speed current limitation and protection for electrical circuits. --- ## 1. Technical Specifications The following table summarizes the primary electrical characteristics of the KTS-R-150: | Feature | Specification | | :--- | :--- | | **Current Rating** | 150 Amperes | | **Voltage Rating (AC)** | 600 Vac | | **Interrupting Rating** | 200,000 Amps (RMS Symmetrical) | | **Fuse Class** | Class RK1 | | **Time Characteristics** | Fast-Acting | | **Material** | Melamine glass tube with plated end caps | --- ## 2. Key Features and Construction The KTS-R-150 is engineered for environments where sensitive equipment requires immediate protection against short circuits. * **Current Limitation:** As a Class RK1 fuse, it provides a high degree of current limitation. It reacts significantly faster than standard Class RK5 fuses, reducing the "let-through" energy during a fault. * **Rejection Feature:** The "R" in the part number indicates it is a rejection-style fuse. When used with a Class R fuse block, the physical dimensions prevent the accidental installation of lower-rated fuses (like Class H or K). * **Internal Link:** Uses a specialized fast-melting element designed to clear faults in less than 0.008 seconds (half a cycle) under high fault conditions. --- ## 3. Common Applications The KTS-R-150 is typically found in the following electronic and electrical systems: 1. **Branch Circuit Protection:** Used in main power distribution panels to protect downstream components. 2. **Motor Controllers:** Ideal for protecting non-inductive loads or as backup protection for motor circuits where high-speed clearing is required. 3. **UPS Systems:** Protecting the rectifiers and inverters in Uninterruptible Power Supplies. 4. **Resistive Loads:** Excellent for electric heating systems and lighting circuits. --- ## 4. Part Number Breakdown Understanding the nomenclature helps in identifying the specific protection level: | Prefix | Series/Voltage | Amperage | | :--- | :--- | :--- | | **KTS** | 600V Limitron Series | - | | **-R** | Rejection Class RK1 | - | | **-150** | - | 150 Amp Rating | ---