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Circuit Breakers
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Items 1-10 of 22

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  1. FLNR100ID
    FLNR100ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR100ID
    MFG Item Number
    FLNR100ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 100A INDICATING
    Specifications
    Specifications
    Current Rating 100 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 27 mm
    Body Length (mm) 149.2 mm
    Diameter (in) 1.06 "
    Body Length (in) 5.88 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  2. FLNR110ID
    FLNR110ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR110ID
    MFG Item Number
    FLNR110ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 110A INDICATING
    Specifications
    Specifications
    Current Rating 110 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 40.5 mm
    Body Length (mm) 181 mm
    Diameter (in) 1.59 "
    Body Length (in) 7.13 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  3. FLNR125ID
    FLNR125ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR125ID
    MFG Item Number
    FLNR125ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 125A INDICATING
    Specifications
    Specifications
    Current Rating 125 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 40.5 mm
    Body Length (mm) 181 mm
    Diameter (in) 1.59 "
    Body Length (in) 7.13 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  4. FLNR150ID
    FLNR150ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR150ID
    MFG Item Number
    FLNR150ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 150A INDICATING
    Specifications
    Specifications
    Current Rating 150 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 40.5 mm
    Body Length (mm) 181 mm
    Diameter (in) 1.59 "
    Body Length (in) 7.13 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  5. FLNR175ID
    FLNR175ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR175ID
    MFG Item Number
    FLNR175ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 175A INDICATING
    Specifications
    Specifications
    Current Rating 175 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 40.5 mm
    Body Length (mm) 181 mm
    Diameter (in) 1.59 "
    Body Length (in) 7.13 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  6. FLNR200ID
    FLNR200ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR200ID
    MFG Item Number
    FLNR200ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 200A INDICATING
    Specifications
    Specifications
    Current Rating 200 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 40.5 mm
    Body Length (mm) 181 mm
    Diameter (in) 1.59 "
    Body Length (in) 7.13 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  7. FLNR225ID
    FLNR225ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR225ID
    MFG Item Number
    FLNR225ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 225A INDICATING
    Specifications
    Specifications
    Current Rating 225 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 53.2 mm
    Body Length (mm) 219.1 mm
    Diameter (in) 2.09 "
    Body Length (in) 8.63 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  8. FLNR250ID
    FLNR250ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR250ID
    MFG Item Number
    FLNR250ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 250A INDICATING
    Specifications
    Specifications
    Current Rating 250 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 53.2 mm
    Body Length (mm) 219.1 mm
    Diameter (in) 2.09 "
    Body Length (in) 8.63 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  9. FLNR300ID
    FLNR300ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR300ID
    MFG Item Number
    FLNR300ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 300A INDICATING
    Specifications
    Specifications
    Current Rating 300 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 53.2 mm
    Body Length (mm) 219.1 mm
    Diameter (in) 2.09 "
    Body Length (in) 8.63 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  10. FLNR350ID
    FLNR350ID
    Littelfuse Fuses, FLNR_ID Series
    Item Number
    FLNR350ID
    MFG Item Number
    FLNR350ID
    Series
    FLNR_ID
    Product Description
    FUS 250V T/D CLASS RK5 350A INDICATING
    Specifications
    Specifications
    Current Rating 350 A
    Voltage (AC) 250 VAC
    Voltage (DC) 125 VDC
    Interrupt Rating 200 kA @ 250 V
    Trip Indicator Yes
    Alarm Contact No
    Diameter (mm) 53.2 mm
    Body Length (mm) 219.1 mm
    Diameter (in) 2.09 "
    Body Length (in) 8.63 "
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
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Circuit Protection

Circuit breakers and fuses protect against overload and short circuits for all types of applications.

A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typically resulting from an overload or short circuit. The circuit breaker trips to interrupt the circuit, and be reset and reused.
Fuses provide the same protections. If too much current flows through the fuse, a metal link in the fuse body will melt and interrupt the circuit. A fuse can only trip and open the circuit once, so it must be replaced or repaired to complete the circuit again. Fuses are typically installed in fuse blocks, either for storage or to consolidate fuses in one, easily maintained location.

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