Littelfuse Indicator FLSR 40 ID Dual Element Time Delay Fuses (Lot of 2)

The Littelfuse Indicator FLSR 40 ID Dual Element Time Delay Fuses (Lot of 2) are designed to provide reliable overcurrent protection for various electrical circuits, especially those with motor loads or equipment that may experience temporary overloads or inrush currents. Here’s an overview of the key features:

Key Features:

1. 40 Amp Rating:

   • Each fuse in the lot has a 40-amp current rating, meaning it will allow continuous current flow up to 40 amps before interrupting the circuit in the case of an overcurrent condition.

2. Dual Element Construction:

   • These fuses feature dual-element construction, which is a combination of two fuse elements:
     • A fast-acting element for quick protection against short circuits (when the current spikes quickly).
     • A time-delay element for handling sustained overload conditions, such as those caused by inrush currents at motor startup.

3. Time-Delay Feature:

   • The time-delay function allows the fuse to tolerate temporary overloads without blowing immediately. This is especially important for circuits involving motors, compressors, or other inductive loads, which often experience brief surges in current during startup. The fuse will delay its reaction until the overload persists for a longer period, preventing unnecessary tripping.

4. Indicator Feature (ID):

   • The “ID” (Indicator) feature indicates when the fuse has blown, making it easier to quickly identify when a replacement is necessary. This is particularly useful for maintenance personnel to avoid time-consuming checks and to ensure quick replacement.

5. Voltage Rating:

   • These fuses are typically designed for 600V AC circuits, which makes them suitable for industrial and commercial applications that involve high-voltage circuits.

6. Lot of 2:

   • This lot contains two fuses, offering a more convenient option for replacing multiple fuses or maintaining systems that require this particular fuse type.

Applications:

• Motor Protection: The fuses are ideal for protecting motors in industrial or commercial systems, where inrush currents and transient overloads occur during startup.
• HVAC Systems: Commonly used in heating, ventilation, and air conditioning systems to safeguard compressors and other components from overloads or short circuits.
• Industrial Equipment: Suitable for various industrial applications that require reliable protection for circuits with loads that can experience momentary overloads.

Benefits:

• Improved Safety: With the dual-element design, these fuses provide comprehensive protection by responding quickly to short circuits and offering a delay for longer-term overloads.
• Quick Identification of Faults: The indicator feature alerts you when the fuse is blown, reducing downtime and facilitating fast replacements.
• Prevents False Trips: The time-delay ensures the fuse doesn’t blow due to brief or temporary overloads, which are common in systems with motors or other inductive loads.
• Convenient Lot Purchase: The lot of 2 fuses is ideal for those needing multiple replacements or for keeping spare fuses on hand for maintenance.