The **HTB-38I-R** is a high-performance, panel-mount fuse holder designed and manufactured by **Eaton (Bussmann Series)**. It is specifically engineered to hold 1/4" x 1-1/4" (6.3 x 32mm) fuses, commonly used in industrial and telecommunications equipment. --- ### ## Technical Specifications The following table outlines the core electrical and physical parameters of the HTB-38I-R: | Parameter | Specification | | :--- | :--- | | **Current Rating** | 20 Amps (UL), 16 Amps (VDE) | | **Voltage Rating** | 250 Volts AC | | **Fuse Size Accepted** | 1/4" x 1-1/4" (3AG / AGC / ABC) | | **Body Material** | High-temperature thermoplastic (UL 94V0) | | **Terminal Type** | 1/4" Quick Connect (Solderable) | | **Mounting Style** | Rear panel mount (Nut/Washer) | | **Knob Type** | In-line / Screw type (Finger-grip) | --- ### ### Key Electronic Components & Features 1. **Conductive Contacts:** * Constructed from tin-plated copper alloy to ensure low contact resistance and high conductivity. * The "I" in the part number indicates an **In-line** terminal configuration (Right Angle / Straight options vary by sub-model). 2. **Insulation Housing:** * The body is made of flame-retardant thermoplastic. This prevents electrical arcing and ensures safety during high-current loads or accidental short circuits. * The "R" suffix indicates **RoHS compliance**, meaning the materials are free from hazardous substances like lead and cadmium. 3. **Mechanical Protection:** * **Finger-Safe Design:** The "In-line" knob allows for easy fuse replacement without the need for specialized tools while protecting the user from live electrical contacts. * **Panel Seal:** Designed to be mounted through a 1/2" (12.7mm) D-shaped hole to prevent rotation once installed. 4. **Dielectric Strength:** * The unit is tested to withstand high voltages between the terminals and the panel, ensuring that the chassis of your device does not become "hot" (electrified). --- ### ### Common Applications * **Industrial Control Panels:** Used as a primary safety point for high-draw machinery. * **Power Supplies:** Provides overcurrent protection at the input or output stage. * **Medical Equipment:** High reliability for sensitive diagnostic tools. * **Telecommunications:** Often found in rack-mounted power distribution units.