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LFH250301S
CARTRIDGE FUSE HOLDER, 1P, 30A, 250V
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type: Fuse Holders
- Fuse Holder Type:Cartridge Fuse Holder; Fuse Current:30A; Fuse Size Held:Class H; Holder Terminals:Screw; No. of Fuses:1Fuses; Product Range:POWR-GARD LF Series; 90T5623
- Fuse Current: 30A
- No. of Fuses: 1Fuses
- Product Range: POWR-GARD LF Series
- Fuse Size Held: Class H
- Fuse Holder Type: Cartridge Fuse Holder
- Holder Terminals: Screw
- Voltage Rating VAC: 250V
- Voltage Rating VDC: 250V
| Delivery and price | |
|---|---|
| Units per pack | 500 |
| Price | 6.55 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**POWR-GARD[®] Blocks and Holders Datasheet** LF SERIES CLASS H/K5 AND R FUSE BLOCKS ## 250 V • 600 V ## **Specifications** ## **Description** The Littelfuse Class H/K5 and R blocks offer many benefits such as indication, snap-to-release DIN rail mounting and mounting flexibility for easier installation. Class H and Class R fuse blocks are dimensionally the same, but Class R blocks incorporate a rejection feature, which only allows Class R fuses to be inserted. ## **Features/Benefits** - Accommodates a wide range of existing mounting configurations - Indication offered on most 250 V and 600 V versions One hand release from DIN rail for ferrule style fuses - Reinforced fuse clips are standard on all Class H and Class R fuse blocks - Covers available for 100 A and lower to enhance safety **Voltage Rating Ampere Ratings Leakage Current Withstand Rating** 250 V, 600 V 0-600 A <0.6 mA at 600 V Class H: 10 kA RMS SYM Class R: 200 kA RMS SYM **Materials: Base Fuse Clip Box Lug Pressure Plate Screw** Thermoplastic Tin plated copper alloy Aluminum Zinc plated steel Zinc plated steel **Flammability Rating Approvals** UL94 V-0 UL Listed (File: E14721) CSA Certified (File: LR7316) RoHS Compliant, Lead (Pb) Free **Environmental** ## **Recommended Fuses** **Class H/K5 Blocks – 250 V** NLN **Class R Blocks – 250 V** FLNR/FLNR_ID, KLNR, LLNRK **Class H/K5 Blocks – 600 V** NLS **Class R Blocks – 600 V** FLSR/FLSR_ID, KLSR, LLSRK/LLSRK_ID, IDSR ## **Web Resources** Sample requests, downloadable CAD drawings and other technical information: **Littelfuse.com/lfh** **Littelfuse.com/lfr** - Both hex and slot set screw options available on 60 Ampere, 600 Volt Class R box lugs ## **Ordering Information (Class H 250 V)** |AMP<br>RATING<br>30<br>60<br>100<br>200<br>400<br>600|POLES|ORDERING NUMBER|ORDERING NUMBER|ORDERING NUMBER|ORDERING NUMBER|TORQUE<br>2.8 N-m (25 in-lbs)<br>5.6 N-m (50 in-lbs)|TERMINAL|WIRE<br>RANGE|WIRE TYPE<br>CU Only<br>Solid/<br>Stranded<br>CU-AL<br>CU-AL<br>CU-AL<br>CU-AL<br>CU-AL|BASE<br>TEMP<br>RATING<br>125 ˚C<br>125 ˚C<br>130 ˚C<br>130 ˚C<br>130 ˚C<br>130 ˚C|DIN<br>RAIL<br>•<br>•<br>—<br>—<br>—<br>—|INDICATION<br>—<br>•<br>•<br>—<br>—<br>—|COVER<br>ORDERING<br>NUMBER*<br>LFH25030FBC<br>LFH25060FBC<br>LFH25100FBC<br>—<br>—<br>—| |---|---|---|---|---|---|---|---|---|---|---|---|---|---| |||BASE PART<br>NUMBER|SUFFIX||||||||||| ||||BOX<br>LUG|PRES SURE<br>PLATE|PRES SURE<br>SCREW||||||||| ||1|LFH250301|C|P|S||C|6-14 AWG|||||| ||2|LFH250302|C|P|S||P|10-14 AWG|||||| ||3<br>1|LFH250303<br>LFH250601|C<br>CID|P<br>—|S<br>—||S<br>10-22 AWG<br>2-4 AWG||||||| ||2|LFH250602|CID|—|—||||||||| |||||||2.8 N-m (25 in-lbs)<br>13.6 N-m (120 in-lbs)|6-14 AWG<br>2/0-6 AWG||||||| ||3<br>1|LFH250603<br>LFH251001|CID<br>CID|—<br>—|—<br>—||||||||| |||||||4.5 N-m (40 in-lbs)|8 AWG||||||| ||3<br>1|LFH251003<br>LFH252001|CID<br>C|—<br>—|—<br>—||||||||| |||||||4.0 N-m (35 in-lbs)<br>31.1 N-m (275 in-lbs)<br>31.1 N-m (275 in-lbs)<br>42.4 N-m (375 in-lbs)|10-14 AWG<br>250 kcmil-6<br>(2) 350 kcmil-1/0<br>(2) 500 kcmil-4||||||| ||3<br>1|LFH252003<br>LFH254001|C<br>C|—<br>—|—<br>—||||||||| ||3<br>1|LFH254003<br>LFH256001|C<br>C|—<br>—|—<br>—||||||||| ||3|LFH256003|C|—|—||||||||| _Note: Reinforcing springs standard on all Class H fuse blocks. *Covers sold individually. One cover needed for each pole._ Littelfuse.com © 2021 Littelfuse, Inc. Rev: 010821 **1 of 6** **POWR-GARD[®] Blocks and Holders Datasheet** LF SERIES CLASS H/K5 AND R FUSE BLOCKS **==> picture [262 x 57] intentionally omitted <==** ## **Ordering Information (Class H 600 V)** **==> picture [506 x 182] intentionally omitted <==** **----- Start of picture text -----**<br> ORDERING NUMBER<br>BASE SNAP COVER<br>AMP BASE SUFFIX TORQUE WIRE WIRE TYPE TEMP TO ORDERING<br>RATING ORDERING BOX PRES SURE RANGE RATING RELEASE NUMBER*<br>SCREW<br>NUMBER LUG PLATE<br>1 LFH600301 CID PID SID C 6-14 AWG<br>30 2 LFH600302 CID PID SID 2.8 N-m (25 in-lbs) P 10-14 AWG CU Only 130˚C • • LFH60030FBC<br>3 LFH600303 CID PID SID S 10-22 AWG<br>1 LFH600601 CID — — 5.6 N-m (50 in-lbs) 2-4 AWG<br>60 2 LFH600602 CID — — CU-AL 130˚C • • LFH60060FBC<br>3 LFH600603 CID — — 2.8 N-m (25 in-lbs) 6-14AWG<br>100 1 LFH601001 CID — — 13.6 N4.5 N--m (40 inm (120 in-lbs)-lbs) 2/08 AWG-6AWG CU-AL Solid/ 130˚C — • LFH60100FBC<br>3 LFH601003 CID — — 4.0 N-m (35 in-lbs) 10-14 AWG Stranded<br>200 13 LFH602001LFH602003 CC —— —— 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — —<br>400 13 LFH604001LFH604003 CC —— —— 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — —<br>600 13 LFH606001LFH606003 CC —— —— 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — —<br>S<br>LE<br>O<br>P<br>TERMINAL INDICATION<br>**----- End of picture text -----**<br> _Note: Reinforcing springs standard on all Class H fuse blocks._ **Ordering Information (Class R 250 V)** **==> picture [506 x 181] intentionally omitted <==** **----- Start of picture text -----**<br> ORDERING NUMBER<br>BASE SNAP COVER<br>AMP BASE SUFFIX TORQUE WIRE WIRE TYPE TEMP TO ORDERING<br>RATING ORDERING BOX PRES SURE RANGE RATING RELEASE NUMBER*<br>SCREW<br>NUMBER LUG PLATE<br>1 LFR250301 C P S C 6-14 AWG<br>30 2 LFR250302 C P S 2.8 N-m (25 in-lbs) P 10-14 AWG CU Only 125˚C • — LFH25030FBC<br>3 LFR250303 C P S S 10-22 AWG<br>1 LFR250601 CID — — 5.6 N-m (50 in-lbs) 2-4 AWG<br>60 2 LFR250602 CID — — CU-AL 125˚C • • LFH25060FBC<br>3 LFR250603 CID — — 2.8 N-m (25 in-lbs) 6-14 AWG<br>100 1 LFR251001 CID — — 13.6 N4.5 N--m (40 inm (120 in-lbs)-lbs) 2/08 AWG-6 AWG CU-AL Solid/ 130˚C — • LFH25100FBC<br>3 LFR251003 CID — — 4.0 N-m (35 in-lbs) 10-14 AWG Stranded<br>200 13 LFR252001LFR252003 CC —— —— 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — —<br>400 13 LFR254001LFR254003 CC —— —— 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — —<br>600 13 LFR256001LFR256003 CC —— —— 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — —<br>S<br>LE<br>O<br>P<br>TERMINAL INDICATION<br>**----- End of picture text -----**<br> _Note: Reinforcing springs standard on all Class R fuse blocks._ **Ordering Information (Class R 600 V)** **==> picture [508 x 187] intentionally omitted <==** **----- Start of picture text -----**<br> ORDERING NUMBER<br>BASE SNAP COVER<br>BASE SUFFIX TORQUE WIRE WIRE TYPE TEMP TO ORDERING<br>ORDERING BOX BOX PRES SURE RANGE RATING RELEASE NUMBER*<br>LUG LUG SCREW<br>NUMBER PLATE<br>HEX SLOT<br>1 LFR600301 — CID PID SID C 6-14 AWG<br>30 2 LFR600302 — CID PID SID 2.8 N-m (25 in-lbs) P 10-14 AWG CU Only 130 ˚C • • LFH60030FBC<br>3 LFR600303 — CID PID SID S 10-22 AWG<br>1 LFR600601 CID-HX CID — — 5.6 N-m (50 in-lbs) 2-4 AWG<br>60 2 LFR600602 CID-HX CID — — CU-AL 130 ˚C • • LFH60060FBC<br>3 LFR600603 CID-HX CID — — 2.8 N-m (25 in-lbs) 6-14AWG<br>100 1 LFR601001 CID — — — 13.6 N4.5 N--m (40 inm (120 in-lbs)-lbs) 2/08 AWG-6AWG CU-AL Solid/ 130 ˚C — • LFH60100FBC<br>3 LFR601003 CID — — — 4.0 N-m (35 in-lbs) 10-14 AWG Stranded<br>200 13 LFR602001LFR602003 CC —— —— —— 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130 ˚C — — —<br>400 13 LFR604001LFR604003 CC —— —— —— 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130 ˚C — — —<br>600 13 LFR606001LFR606003 CC —— —— —— 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130 ˚C — — —<br>ES<br>L<br>PO<br>AMP RATING TERMINAL INDICATION<br>**----- End of picture text -----**<br> _Note: Reinforcing springs standard on all Class R fuse blocks. *Covers sold individually. One cover needed for each pole._ Littelfuse.com © 2021 Littelfuse, Inc. Rev: 010821 **2 of 6** **POWR-GARD[®] Blocks and Holders Datasheet** LF SERIES CLASS H/K5 AND R FUSE BLOCKS ## **Dimensions mm (inches)** **==> picture [521 x 608] intentionally omitted <==** **----- Start of picture text -----**<br> 74.7 [2.94]<br>250 V 30 A 28.6 [1.13]<br>23.8 [.94] 48.5 [1.91] 42.9 [1.69]<br>15.6 [.61] 32.2 [1.27] 31.8 [1.25] 40.1 [1.58]<br>13.0 [.51]4.8 [.19] 16.3 [.64]6.8 [.27] 15.9 [.63] 8.4<br>5.6 [.22] [.33]<br>31.9<br>38.2 [1.26]<br>76.5 [1.51]<br>[3.01]<br>44.6<br>[1.76] R2.8 [.11] TYPR2.8 [.11]<br>TYP<br>.2 THRU<br>3.6 [.14]<br>250 V 60 A<br>37.3 [1.47] 57.4 [2.26]<br>22.4 [.88] 70.7 [2.78] 104.1 [4.10]<br>14.8 [.58] 55.8 [2.20] 89.2 [3.51] 24.9 [.98]<br>9.7 [.38]<br>43.1 [1.70] 76.5 [3.01]<br>43.9 [1.73]<br>75.7 [2.98]<br>119.7 [4.71]<br>R2.8 [.11]<br>TYP<br>5.5 [.21]<br>126.3 [4.97]<br>250 V 100 A 100.6 [3.96]<br>46.0 [1.81]<br>91.6 [3.61]<br>34.7 [1.37] 66.0 [2.60]<br>60.5 [2.38]<br>20.3 [.80]<br>11.3 [.45] 51.5 [2.03] 22.9 [.90]<br>53.6 [2.11]<br>R3.4 [.13]<br>72.6 [2.86] TYP<br>133.0 [5.23]<br>177.8 [7.00]<br>**----- End of picture text -----**<br> Littelfuse.com © 2021 Littelfuse, Inc. **3 of 6** Rev: 010821 **POWR-GARD[®] Blocks and Holders Datasheet** LF SERIES CLASS H/K5 AND R FUSE BLOCKS **==> picture [262 x 57] intentionally omitted <==** ## **Dimensions mm (inches)** **==> picture [503 x 624] intentionally omitted <==** **----- Start of picture text -----**<br> 228.6 [9.00]<br>215.9 [8.50]<br>184.2 [7.25]<br>250 V 200 A<br>76.2 [3.00] 63.5 [2.50] 165.1 [6.50] 72.4 [2.85]<br>63.5 [2.50]<br>12.7 [.50] 19.1 [.75] 15.9 [.63]<br>12.7 [.50]<br>52.6<br>[2.07] R4.3 [.17]<br>128.5 TYP.<br>[5.06]<br>181.1<br>Ø.3 THRU<br>[7.13]<br>Ø.3 THRU<br>Ø.8 .4<br>250 V 400 A 88.9 [3.50] 266.7 [10.50] 84.4 [3.32]<br>66.7 [2.63]<br>22.2 [.88] 250.8 [9.88] 15.9 [.63]<br>15.9 [.63] 15.9 [.63]<br>95.3<br>[3.75] 95.3 [3.75]<br>108.0 Ø.3 THRU Ø.3 THRU<br>[4.25] Ø.8 .4 Ø.8 .4<br>184.2 196.9 [7.75]<br>[7.25]<br>292.1<br>[11.50]<br>317.5 [12.5]<br>250 V 600 A 114.3 [4.5]79.4 [3.1] 298.5 [11.8] 110.6 [4.4]<br>34.9 [1.4] 19.1 [.8] 15.9 [.6]<br>19.1 [.8]<br>114.3<br>[4.5] 114.3 [4.5]<br>139.7 Ø.3 THRU Ø.3 THRU<br>[5.5] Ø.6 .4 Ø.6 .4<br>Ø.3 THRU<br>Ø.8 .4 241.3 [9.5]<br>215.9<br>[8.5]<br>355.6<br>[14.0]<br>**----- End of picture text -----**<br> Littelfuse.com © 2021 Littelfuse, Inc. **4 of 6** Rev: 010821 **POWR-GARD[®] Blocks and Holders Datasheet** LF SERIES CLASS H/K5 AND R FUSE BLOCKS ## **Dimensions mm (inches)** **==> picture [433 x 522] intentionally omitted <==** **----- Start of picture text -----**<br> 38.4 [1.51]<br>600 V 30 A 21.5 [.85] 73.1 [2.88] 107.9 [4.25] 52.5 [2.07]<br>19.2 [.76] 51.6 [2.03] 86.4 [3.40]<br>16.8 [.66]6.4 [.25] 41.1 [1.62] 75.9 [2.99] 20.7 [.82]<br>47.6 sis EAE) «Ale eGektige<br>[1.87]<br>56.0 R3.4 [.13]<br>[2.20] TYP<br>R2.6 [.10]<br>TYP<br>118.6<br>[4.67]<br>127.1<br>[5.00]<br>166.7<br>[6.56]<br>i) Ss) Sas<br>600 V 60 A 43.8 [1.73]<br>83.6 [3.29] 123.2 [4.85]<br>32.4 [1.28]<br>29.8 [1.17] 69.5 [2.74] 109.3 [4.30] 59.7 [2.35]<br>19.9 [.78]11.4 [.45] 59.6 [2.35] 99.4 [3.91] 22.9 [.90]<br>Air= ( \—ir77 Ia f|=) ¢|) 7 [lea]<br>55.2<br>74.2 [2.18] R3.4 [.13]<br>[2.92] TYP<br>et) .2 THRU ee) DeDe<br>134.6 .5 .5<br>[5.30] Sy ©. OF 7 ©. ©. ©<br>184.2<br>[7.25]<br>145.3 [5.72]<br>53.4 [2.10] 125.7 [4.95] 66.0 [2.60]<br>33.8 [1.33] 107.0 [4.21]<br>600 V 100 A 19.6 [.77] 79.8 [3.14] 22.9 [.90]<br>15.0 [.59] 61.0 [2.40]<br>64.6 [2.54]<br>R3.4 [.13]<br>TYP<br>172.8 [6.80]<br>228.6 [9.00]<br>**----- End of picture text -----**<br> Littelfuse.com © 2021 Littelfuse, Inc. Rev: 010821 **5 of 6** **POWR-GARD[®] Blocks and Holders Datasheet** LF SERIES CLASS H/K5 AND R FUSE BLOCKS **==> picture [262 x 57] intentionally omitted <==** ## **Dimensions mm (inches)** **==> picture [459 x 378] intentionally omitted <==** **----- Start of picture text -----**<br> 600 V 200 A 228.6 [9.00]<br>76.2 [3.00] 63.5 [2.50] 165.1 [6.50]196.9 [7.75] [2.85]72.4<br>44.5 [1.75]<br>63.5 [2.50] 31.8 [1.25] 15.9<br>12.7 [.50] 12.7 [.50] [.63]<br>[2.06]52.3 Ø.3 THRUØ.7 .4 76.7[2.06]52.3 Ø.3 THRU<br>84.2 [3.02] Ø.3 THRU<br>[3.32] Ø.3 THRU 84.1 Ø.8 .4<br>160.1 Ø.8 .4 [3.31]<br>[6.31]<br>160.3<br>192.0 [6.31]<br>[7.56]<br>244.3<br>[9.62]<br>R4.3 [.17]<br>TYP.<br>600 V 400 A 88.9 [3.50]<br>73.0 [2.88]<br>266.7 [10.50]<br>66.7 [2.63] 84.4 [3.32]<br>22.2 [.88] 250.8 [9.88] 15.9 [.63]<br>15.9 [.63] 15.9 [.63]<br>95.3<br>[3.75]<br>Ø.3 THRU<br>146.1 Ø.8 .4<br>[5.75]<br>222.3<br>[8.75]<br>273.1<br>[10.75]<br>368.3<br>[14.50]<br>**----- End of picture text -----**<br> **==> picture [457 x 173] intentionally omitted <==** **----- Start of picture text -----**<br> 600 V 600 A 114.3 [4.50]<br>95.3 [3.75]<br>79.4 [3.13] 317.5 [12.50]<br>34.9 [1.38] 298.5 [11.75] 110.6 [4.36]<br>19.1 [.75] 19.1 [.75] 15.9 [.63]<br>114.3<br>[4.50]<br>Ø.3 THRU<br>177.8 Ø.6 .4<br>[7.00]<br>254.0 Ø.3 THRU<br>[10.00] Ø.8 .4<br>431.8<br>[17.00]<br>**----- End of picture text -----**<br> **Disclaimer Notice –** Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at **www.littelfuse.com/product-disclaimer.** Littelfuse.com © 2021 Littelfuse, Inc. Rev: 010821 **6 of 6**
Updated at June 10, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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