Littelfuse

Littelfuse

Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 16,000 global associates. Littelfuse partners with customers to design and deliver innovative, reliable solutions. Serving more than 100,000 end customers, Littelfuse's products are found in various industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse has been driving innovation and technology and building communities for over 95 years.

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Littelfuse
The ALT alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps. The ALT-S is used in single high-level float applications. When the float switch opens, the alternating relay changes state, forcing the other pump to run the next time the float closes. All ALT relays have a built-in debounce feature that prevents the relay from changing state if the switch or float contact bounces momentarily. The ALT-X has an internal cross-connected relay and is used in dual high-level float applications. These floats are commonly referred to as lead and lag floats. The pumps alternate as in the ALT-S version but the crossconnected relay configuration allows both pumps to run simultaneously when both the lead and lag floats are closed. These relays are also available with a built-in switch (SW option) that is used to manually force one of the pumps to run every time the float switch is closed. This is helpful when a pump has been removed for repair or for test purposes. In the case of the ALT-X-SW, the switch essentially forces one pump to be the lead pump, while still allowing the second to run when both floats are closed. Must use the OT08PC socket for UL Rating!
MFR: Littelfuse
MFR #: ALT-115-S-SW
UPC: 079458991314
Item #: 1382862
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Phone: 1-855-999-2372 Email Contact Us
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Littelfuse
Solid State Timer
MFR: Littelfuse
MFR #: KSDB314SP
UPC: 079458995565
Item #: 150727
In Stock -
$231.45 each
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Littelfuse
Ground Fault Ground-Check Monitor
MFR: Littelfuse
MFR #: SE-105
UPC: 079458188233
Item #: 454484
Available to Order
$5565.63 each
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Littelfuse
Gf/Gc Term Assembly 5.6V 50W Tc
MFR: Littelfuse
MFR #: SE-TA6A
UPC: 079458989540
Item #: 531235
Available to Order
$1949.48 each
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Littelfuse
Fuse 250V T/D Midget 10A
MFR: Littelfuse
MFR #: FLM010
UPC: 079458140651
Item #: 184558
Available to Order
$33.13 each
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Littelfuse
Fuse 250V T/D Midget 5A
MFR: Littelfuse
MFR #: FLM005
UPC: 079458140552
Item #: 117078
Available to Order
$33.13 each
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Littelfuse
Fuse 250V T/D Midget 20A
MFR: Littelfuse
MFR #: FLM020
UPC: 079458140712
Item #: 628600
Available to Order
$33.13 each
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Littelfuse
Fast-acting, high-interrupting capacity, current-limiting type fuse. Especially suited for control circuits, street lighting, H.I.D. lighting, computers, and other applications without high inrush currents.
MFR: Littelfuse
MFR #: KLK010
UPC: 079458250657
Item #: 818881
Available to Order
$70.55 each
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Littelfuse
Fuse 600V T/D Class J 90A
MFR: Littelfuse
MFR #: JTD090
UPC: 079458202236
Item #: 74270
In Stock -
$317.05 each
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Littelfuse
Use FLM 250 volt time-delay fuses to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Excellent for supplemental protection of small motors. For motor branch-circuit protection, see Class CC fuses.
MFR: Littelfuse
MFR #: FLM002
UPC: 079458140415
Item #: 43873
Available to Order
$33.13 each
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Littelfuse
Used On Systems Up To 1 kV.
MFR: Littelfuse
MFR #: ER-600VC
UPC: 079458977950
Item #: 450698
Available to Order
$1681.03 each
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Littelfuse
50-W ground-check termination assembly with convenient mounting holes and screw terminals.
MFR: Littelfuse
MFR #: SE-TA12A
UPC: 079458989489
Item #: 482948
Available to Order
$1949.48 each
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Littelfuse
Used when replacing an Atkinson Omser II with an SE-130-Series Monitor.
MFR: Littelfuse
MFR #: PMA-8
UPC: 079458978421
Item #: 1008517
Available to Order
$1690.93 each
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Littelfuse
The SE-325 Neutral-Grounding-Resistor Monitor is used on resistance-grounded systems up to 25 kV to monitor the integrity of the neutral-to-ground path and to detect ground faults. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The SE-325 coordinates these three measurements to detect a loose connection, corrosion, ground fault, or NGR failure, and provides one alarm or trip output contact.
MFR: Littelfuse
MFR #: SE-325
UPC: 079458988079
Item #: 1280879
Available to Order
$6008.93 each
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Littelfuse
Remote indication and reset for the SE-330, SE-330AU, and SE-330HV. NEMA 4 and NEMA 13 rating. Standard 22-mm mounting.
MFR: Littelfuse
MFR #: RK-332
UPC: 079458987836
Item #: 1204732
Available to Order
$1754.50 each
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Littelfuse
The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.
MFR: Littelfuse
MFR #: EFCT-1
UPC: 079458977684
Item #: 534791
Available to Order
$2728.10 each
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Littelfuse
The SE-330 is an advanced ground-fault and neutral-grounding resistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders currentsensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU.
MFR: Littelfuse
MFR #: SE-330-SMA
UPC: 079458988604
Item #: 1204733
Available to Order
$1258.10 each
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Littelfuse
The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.
MFR: Littelfuse
MFR #: EFCT-26
UPC: 079458977721
Item #: 866232
Available to Order
$1708.20 each
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Littelfuse
50-W ground-check termination assembly with convenient mounting holes and wire leads.
MFR: Littelfuse
MFR #: SE-TA6A-WL
UPC: 079458989557
Item #: 656337
Available to Order
$2237.33 each
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Littelfuse
Used On Systems Up To 15 kV.
MFR: Littelfuse
MFR #: ER-15KV
UPC: 079458977905
Item #: 501382
Available to Order
$9600.28 each
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Littelfuse
DEVICENET CIO MODULE FOR
MFR: Littelfuse
MFR #: CIO-120-DN-P
UPC: 079458991598
Item #: 1086228
Available to Order
$1355.70 each
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Littelfuse
RS-485 COMMUNICATIONS MODULE/
MFR: Littelfuse
MFR #: RS485MS-2W
UPC: 079458998320
Item #: 1513062
Available to Order
$587.58 each
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Littelfuse
1500VDC PHOTOVOLTAIC FUSE BULK 50-PACK
MFR: Littelfuse
MFR #: SPXV015L
UPC: 079458808193
Item #: 1356674
Available to Order
$70.73 each
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Littelfuse
Molded from engineering-grade thermoplastics which provide high resistance to corrosive environments. For watertight protection of non-breakaway Y-pole termination, order one WPB1 and one WPB3 boot.
MFR: Littelfuse
MFR #: WPB1
UPC: 079458008197
Item #: 207825
Available to Order
$11.93 each
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Littelfuse
FAST-ACTING 2AG TYPE GLASS FUSE 8A. The 2AG Fast-Acting Fuses are available in cartridgeform or with axial leads. 2AG Fuses provide the sameperformance characteristics as their 3AG counterpart, whileoccupying one-third the space. Sleeved fuses are available. Features: In accordancewith underwritersLaboratories StandardUL 248-14. Available in cartridgeand axial lead form andwith various formingdimensions. RoHS compliant andLead-free.
MFR: Littelfuse
MFR #: 225008P
UPC: 079458112702
Item #: 223998
Available to Order
$4.15 each
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Littelfuse
FAST-ACTING TYPE GLASS FUSE 5A. The 3AG Fast-Acting Fuse solves a broad rangeof application requirements while offering reliableperformance and cost-effective circuit protection. Features: In accordance with ULStandard 248-14. Available in cartridgeand axial lead formatand with various formingdimensions. RoHS compliant andLead-free.
MFR: Littelfuse
MFR #: 312005P
UPC: 079458922035
Item #: 207719
Available to Order
$2.60 each
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Littelfuse
FAST-ACTING 5X20MM GLASS FUSE 3PA. 5x20mm medium-acting glass body fuse designed to UL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
MFR: Littelfuse
MFR #: 235003P
UPC: 079458908466
Item #: 303448
Available to Order
$3.13 each
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Littelfuse
218 SLO-BLO GLASS BODY FUSE H-PACK .250A. 5x20mm Time-Lag glass body cartridge fuse designed toIEC specification. Features: Designed toInternational (IEC )Standards for useglobally Meets the IEC60127-2, Sheet 3specification for Time Lag fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: H218.250P
UPC: 079458904383
Item #: 1427934
Available to Order
$3.90 each
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Littelfuse
FAST-ACTING 5X20MM GLASS FUSE .500PA. 5x20mm medium-acting glass body fuse designed to UL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
MFR: Littelfuse
MFR #: 235.500P
UPC: 079458908107
Item #: 316419
Available to Order
$3.55 each
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Littelfuse
FUSE AGC 3AG 250V BOX 3A. Originally stood for all glass. The automotive industry uses the AG prefix (AGC, AGW) for most glass fuses. They vary in length, diameter and amperage rating.
MFR: Littelfuse
MFR #: AGC3
UPC: 079458005028
Item #: 1496566
Available to Order
$3.05 each
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Littelfuse
FAST-ACTING 5X20 GLASS BODY .500A. 5x20mm fast-acting ceramic body cartridge fuse designedto IEC specification. Features: Designed toInternational (IEC )Standards for useglobally. Meets the IEC 60127-2, sheet 1 specificationfor fast-acting fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: 217.500P
UPC: 079458903058
Item #: 304075
Available to Order
$4.68 each
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Littelfuse
218 SLO-BLO GLASS BODY FUSE 1A. 5x20mm Time-Lag glass body cartridge fuse designed toIEC specification. Features: Designed toInternational (IEC )Standards for useglobally Meets the IEC60127-2, Sheet 3specification for Time Lag fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: 218001P
UPC: 079458904772
Item #: 731318
Available to Order
$7.38 each
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Littelfuse
Designed to protect todays equipment and systems, Littelfuse semiconductor fuses are manufactured with Littelfuse-developed technology that sets tomorrows standards for accuracy, consistent quality, reliability, and predictable performance. By using advanced metallurgical, polymer, and materials research; mathematical modeling, and computerized statistical analysis; Littelfuse engineers have redefined State-of-the-Art.
MFR: Littelfuse
MFR #: L25S010
UPC: 079458840100
Item #: 1464315
Available to Order
$105.43 each
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Littelfuse
FAST-ACTING 2AG TYPE GLASS FUSE .500A. The 2AG Fast-Acting Fuses are available in cartridgeform or with axial leads. 2AG Fuses provide the sameperformance characteristics as their 3AG counterpart, whileoccupying one-third the space. Sleeved fuses are available. Features: In accordancewith underwritersLaboratories StandardUL 248-14. Available in cartridgeand axial lead form andwith various formingdimensions. RoHS compliant andLead-free.
MFR: Littelfuse
MFR #: 225.500P
UPC: 079458914290
Item #: 199814
Available to Order
$6.50 each
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Littelfuse
SLO-BLO GLASS BODY FUSE .100A. 5x20mm Time-Lag glass body cartridge fuse designed toIEC specification. Features: Designed toInternational (IEC )Standards for useglobally Meets the IEC60127-2, Sheet 3specification for Time Lag fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: 218.100P
UPC: 079458904222
Item #: 1565234
Available to Order
$10.55 each
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Littelfuse
SLO-BLO 2AG TYPE GLASS FUSE .250A. The 2AG Slo-Blo Fuses are available in cartridge form or with axial leads. 2AG Fuses providing the same performance characteristics as their 3AG counterpart, while occupying one-third the space. Features: 229 series 2AG fuses have time-delay of 313 series 3AG fuses in less than one-third of the space. They provide superior protection for inductive loads such as motors, transformers, and solenoids. Use whenever time-delay fuses are indicated. An indicating version is also available. 2AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 2AG fuse design.
MFR: Littelfuse
MFR #: H229.250P
UPC: 079458915235
Item #: 1508732
Available to Order
$2.65 each
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Littelfuse
FAST-ACTING 5X20 GLASS BODY 1A. 5x20mm fast-acting ceramic body cartridge fuse designedto IEC specification. Features: Designed toInternational (IEC )Standards for useglobally. Meets the IEC 60127-2, sheet 1 specificationfor fast-acting fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: 217001P
UPC: 079458903218
Item #: 279259
Available to Order
$4.68 each
Availability
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Littelfuse
FAST-ACTING 5X20 GLASS BODY 5A. 5x20mm fast-acting ceramic body cartridge fuse designedto IEC specification. Features: Designed toInternational (IEC )Standards for useglobally. Meets the IEC 60127-2, sheet 1 specificationfor fast-acting fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: 217005P
UPC: 079458903409
Item #: 341666
Available to Order
$4.68 each
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Littelfuse
Use FLM 250 volt time-delay fuses to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Excellent for supplemental protection of small motors. For motor branch-circuit protection, see Class CC fuses.
MFR: Littelfuse
MFR #: FLM6.25
UPC: 079458140590
Item #: 1482953
Available to Order
$33.13 each
Availability
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Littelfuse
FAST-ACTING TYPE GLASS FUSE 30A. The 3AG Fast-Acting Fuse solves a broad rangeof application requirements while offering reliableperformance and cost-effective circuit protection. Features: In accordance with ULStandard 248-14. Available in cartridgeand axial lead formatand with various formingdimensions. RoHS compliant andLead-free.
MFR: Littelfuse
MFR #: 312030P
UPC: 079458100167
Item #: 1547282
Available to Order
$3.55 each
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Littelfuse
SLO-BLO GLASS BODY FUSE 3A. 5x20mm time-Lag glass body cartridge fuse designed to JL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
MFR: Littelfuse
MFR #: 239003P
UPC: 079458909814
Item #: 277850
Available to Order
$5.40 each
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Littelfuse
CNN_E fuses are rated for applications up to 80 V dc. As fork lift trucks and electrical vehicle system voltages increase, circuit protection needs to be rated higher than the standard CNN products to handle the increased voltage. The CNN_E is considered very fast-acting for quicker reaction time.
MFR: Littelfuse
MFR #: CNN275
UPC: 079458009057
Item #: 1550229
Available to Order
$136.38 each
Availability
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Littelfuse
H229 SLO-BLO GLASS INDICATOR H-PACK 1A. The 2AG Slo-Blo Fuses are available in cartridge form or with axial leads. 2AG Fuses providing the same performance characteristics as their 3AG counterpart, while occupying one-third the space. Features: 229 series 2AG fuses have time-delay of 313 series 3AG fuses in less than one-third of the space. They provide superior protection for inductive loads such as motors, transformers, and solenoids. Use whenever time-delay fuses are indicated. An indicating version is also available. 2AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 2AG fuse design.
MFR: Littelfuse
MFR #: H229.750SP
UPC: 079458914849
Item #: 1558589
Available to Order
$2.85 each
Availability
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Littelfuse
FAST-ACTING 5X20 GLASS BODY 8A. 5x20mm fast-acting ceramic body cartridge fuse designedto IEC specification. Features: Designed toInternational (IEC )Standards for useglobally. Meets the IEC 60127-2, sheet 1 specificationfor fast-acting fuses. Available in cartridgeand axial lead form RoHS compliant andlead-free.
MFR: Littelfuse
MFR #: 217008P
UPC: 079458903454
Item #: 198156
Available to Order
$7.50 each
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Littelfuse
The Littelfuse LA30QS series Semiconductor protection fuses are intended for the protection of Power Semiconductors such as Diodes, Phase Control SCR and other Power Semiconductor devices. The LA30QS is recommended for new applications providing solutions for your critical protection needs at 300V and less semiconductors. Features: Low l2t minimizes damage to protected components on short circuit. Controlled arc voltage reduces stress to circuit components during fuse clearing. Choice of mounting types provides options for unique termination requirements. Indicator options allow identification of blown fuses. Superior DC capabilities. Applications: Protection of 300 volt heavy duty rectifiers and similar heavy duty power supplies.
MFR: Littelfuse
MFR #: LA30QS2500-128
UPC: 079458161410
Item #: 1542608
Available to Order
$2606.45 each
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Littelfuse
FAST-ACTING 5X20MM GLASS FUSE .250PA. 5x20mm medium-acting glass body fuse designed to UL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
MFR: Littelfuse
MFR #: 235.250P
UPC: 079458907933
Item #: 372653
Available to Order
$9.93 each
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Littelfuse
Fiber tube, 250 volt BLN fuses provide low-cost protection for military applications and control circuits.
MFR: Littelfuse
MFR #: BLN020
UPC: 079458110715
Item #: 1566523
Available to Order
$16.53 each
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Littelfuse
FAST-ACTING TYPE GLASS FUSE 6A. The 3AG Fast-Acting Fuse solves a broad rangeof application requirements while offering reliableperformance and cost-effective circuit protection. Features: In accordance with ULStandard 248-14. Available in cartridgeand axial lead formatand with various formingdimensions. RoHS compliant andLead-free.
MFR: Littelfuse
MFR #: 312006P
UPC: 079458922066
Item #: 303774
Available to Order
$2.50 each
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