Founded in 1927 and headquartered in Chicago, Littelfuse is a global leader in circuit protection, power control, and sensing technologies. Best known for its fuses, Littelfuse makes components that keep electrical systems safe and reliable in industrial, automotive, commercial, and electronics applications. Whale Supply carries a selection of Littelfuse fuses, fuse holders, and circuit protection products trusted by electricians, maintenance teams, and OEMs.
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Littelfuse BLF6.25, Fast-Acting Midget Fuse, 6-1/4A, 250VAC, 1 Piece
Littelfuse | SKU: LF-BLF6.25
MSRP: $11.34Price: $5.51The BLF series fast-acting fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. These fuses also have the capability to limit currents with...- Availability:
- In Stock - Ships within the next business day
MSRP: $11.34Price: $5.51 -
Littelfuse BLF015, Fast-Acting Midget Fuse, 15A, 250VAC, 1 Piece
Littelfuse | SKU: LF-BLF015
MSRP: $11.34Price: $5.51The BLF series fast-acting fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. These fuses also have the capability to limit currents with...- Availability:
- In Stock - Ships within the next business day
MSRP: $11.34Price: $5.51 -
Littelfuse FLM04.5, Time Delay Midget Fuse For Sup. Protection, 4-1/2A, 250VAC, 1 Piece
Littelfuse | SKU: LF-FLM04.5
MSRP: $21.74Price: $11.12The FLM series 250 V fuses are designed to protect control circuit transformers, solenoids, and other circuits with high in-rush currents. They are also excellent for supplemental protection of small...- Availability:
- In Stock - Ships within the next business day
MSRP: $21.74Price: $11.12 -
Littelfuse BLF005, Fast-Acting Midget Fuse, 5A, 250VAC, 1 Piece
Littelfuse | SKU: LF-BLF005
MSRP: $11.34Price: $5.51The BLF series fast-acting fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. These fuses also have the capability to limit currents with...- Availability:
- In Stock - Ships within the next business day
MSRP: $11.34Price: $5.51 -
Littelfuse FLM03.5, Time Delay Midget Fuse For Sup. Protection, 3-1/2A, 250VAC, 1 Piece
Littelfuse | SKU: LF-FLM03.5
MSRP: $21.74Price: $11.12The FLM series 250 V fuses are designed to protect control circuit transformers, solenoids, and other circuits with high in-rush currents. They are also excellent for supplemental protection of small...- Availability:
- In Stock - Ships within the next business day
MSRP: $21.74Price: $11.12 -
Littelfuse BLF004, Fast-Acting Midget Fuse, 4A, 250VAC, 1 Piece
Littelfuse | SKU: LF-BLF004
MSRP: $11.34Price: $5.51The BLF series fast-acting fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. These fuses also have the capability to limit currents with...- Availability:
- In Stock - Ships within the next business day
MSRP: $11.34Price: $5.51 -
Littelfuse FLA001, Time Delay Midget Fuse With Indication, 1A, 125VAC, 1 Piece
Littelfuse | SKU: LF-FLA001
MSRP: $56.18Price: $35.34The FLA series fuses are 125 V ac, pin-indicating, time-delay fuses for protection of control circuit transformers, solenoids, and other circuits with high in-rush currents. A metal indicator pin...- Availability:
- In Stock - Ships within the next business day
MSRP: $56.18Price: $35.34 -
Littelfuse BLF003, Fast-Acting Midget Fuse, 3A, 250VAC, 1 Piece
Littelfuse | SKU: LF-BLF003
MSRP: $11.34Price: $5.51The BLF series fast-acting fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. These fuses also have the capability to limit currents with...- Availability:
- In Stock - Ships within the next business day
MSRP: $11.34Price: $5.51 -
Littelfuse ESDR420A1, SOLID STATE TIMER (RECYCLING)
Littelfuse | SKU: LF-ESDR420A1
Price: $132.42The ESDR Series offers independent time adjustment of both delay periods. Adjustment options include fixed, onboard or external adjust. The ESDR is recommended for air drying, automatic oiling, life...- Availability:
- In Stock - Ships within the next business day
Price: $132.42 -
Littelfuse SPF03.5, 1000Vdc Midget Solar Fuse, 3-1/2A, 1000VDC, 1 Piece
Littelfuse | SKU: LF-SPF03.5
MSRP: $44.52Price: $27.92The SPF Solar Protection Fuse series has been specifically designed for the protection of photovoltaic (PV) systems. This family of midget-style fuses (10 x 38 mm) can safely protect PV modules and...- Availability:
- In Stock - Ships within the next business day
MSRP: $44.52Price: $27.92 -
Littelfuse SPF004, 1000Vdc Midget Solar Fuse, 4A, 1000VDC, 1 Piece
Littelfuse | SKU: LF-SPF004
MSRP: $44.52Price: $27.92The SPF Solar Protection Fuse series has been specifically designed for the protection of photovoltaic (PV) systems. This family of midget-style fuses (10 x 38 mm) can safely protect PV modules and...- Availability:
- In Stock - Ships within the next business day
MSRP: $44.52Price: $27.92 -
Littelfuse FLM1.25, Time Delay Midget Fuse For Sup. Protection, 1-1/4A, 250VAC, 1 Piece
Littelfuse | SKU: LF-FLM1.25
MSRP: $21.74Price: $11.12The FLM series 250 V fuses are designed to protect control circuit transformers, solenoids, and other circuits with high in-rush currents. They are also excellent for supplemental protection of small...- Availability:
- In Stock - Ships within the next business day
MSRP: $21.74Price: $11.12 -
Littelfuse BLF008, Fast-Acting Midget Fuse, 8A, 250VAC, 1 Piece
Littelfuse | SKU: LF-BLF008
MSRP: $11.34Price: $5.51The BLF series fast-acting fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. These fuses also have the capability to limit currents with...- Availability:
- In Stock - Ships within the next business day
MSRP: $11.34Price: $5.51 -
Littelfuse KRDB420, 2X2 D.O.B. W/RELAY
Littelfuse | SKU: LF-KRDB420
MSRP: $127.67Price: $95.00The KRDB Series is a compact time delay relay measuring only 2 in. (50.8 mm) square. Its microcontroller timing circuit provides excellent repeat accuracy and stability. Encapsulation protects...- Availability:
- In Stock - Ships within the next business day
MSRP: $127.67Price: $95.00 -
Littelfuse FLQ.125, Time Delay Midget Fuse For Supplementary Protection, 1/8A, 500VAC, 1 Piece
Littelfuse | SKU: LF-FLQ.125
MSRP: $55.32Price: $27.82The FLQ series 500 V fuses are designed to provide supplemental overcurrent protection of control power transformers, solenoids, and circuits with high in-rush currents. They also provide excellent...- Availability:
- In Stock - Ships within the next business day
MSRP: $55.32Price: $27.82 -
Littelfuse KLDR020.TXP, Ul Class Cc Time Delay Fuse For Transformers Rohs, 20A, 600AC/300DC, 1 Piece
Littelfuse | SKU: LF-KLDR020.TXP
MSRP: $60.26Price: $29.75KLDR Series time-delay fuses are designed to protect control transformers, solenoids, and similar inductive components with high-magnetizing currents during the first half-cycle. These small-sized...- Availability:
- In Stock - Ships within the next business day
MSRP: $60.26Price: $29.75 -
Littelfuse 0JTD010.TXID UL CLASS J TIME-DELAY FUSES WITH INDICATION
Littelfuse | SKU: LF-JTD010ID
MSRP: $34.20Price: $30.71The JTD_ID Indicating* Series fuses provide visual blown indication and maximum protection in a compact size. These time-delay, dual-element fuses carry the Littelfuse POWR-PRO® advanced technology...- Availability:
- In Stock - Ships within the next business day
MSRP: $34.20Price: $30.71 -
Littelfuse 0JTD015.TXID, 15A, 600VAC, JTD-ID Series, Ul Class J Time-Delay Fuses With Indication
Littelfuse | SKU: LF-JTD015ID
MSRP: $77.32Price: $30.71Littelfuse 0JTD015.TXID, 15A, 600VAC, JTD-ID Series, Ul Class J Time-Delay Fuses With Indication- Availability:
- In Stock - Ships within the next business day
MSRP: $77.32Price: $30.71 -
Littelfuse 0JTD004.TXID UL CLASS J TIME-DELAY FUSES WITH INDICATION
Littelfuse | SKU: LF-JTD004ID
MSRP: $34.20Price: $30.71The JTD_ID Indicating* Series fuses provide visual blown indication and maximum protection in a compact size. These time-delay, dual-element fuses carry the Littelfuse POWR-PRO® advanced technology...- Availability:
- In Stock - Ships within the next business day
MSRP: $34.20Price: $30.71 -
Littelfuse 0JTD003.TXID UL CLASS J TIME-DELAY FUSES WITH INDICATION
Littelfuse | SKU: LF-JTD003ID
MSRP: $34.20Price: $30.71The JTD_ID Indicating* Series fuses provide visual blown indication and maximum protection in a compact size. These time-delay, dual-element fuses carry the Littelfuse POWR-PRO® advanced technology...- Availability:
- In Stock - Ships within the next business day
MSRP: $34.20Price: $30.71