Circuit Protection – Mouser United Kingdom

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Renewable Energy Solutions

Littelfuse provides a wide range of renewable energy solutions that include high-speed fuses, fast-acting relays, surge protection devices, and temperature sensors. These products from Littelfuse are designed to protect equipment from arc-flashes and fault conditions caused by equipment failure, phase-to-phase or ground faults, insulation breakdown, or temperature extremes. This selection of fuses, relays, surge protection devices, and temperature sensors can be found and used in Battery Energy Storage Systems (BESS), Solar/Photovoltaic (PV) energy solutions, and wind turbines.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED L50QS350.V Littelfuse 1: £106.28 56In Stock	Mfr. Part No. L50QS350.V Mouser Part No 576-L50QS350.V	Littelfuse	Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	56In Stock	£106.28	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 10% DO-35 103JG1KE Littelfuse 1: £0.217 12,131In Stock	Mfr. Part No. 103JG1KE Mouser Part No 803-103JG1KE	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 10% DO-35 Learn More about Littelfuse do 35 standard	Datasheet	12,131In Stock	Cut Tape £0.217 £0.201 £0.176 £0.168 View Reel £0.113 £0.15 £0.129 £0.113	Min.: 1 Mult.: 1 : 5,000
NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3977 30K 10% GS303J1K Littelfuse 1: £1.04 2,728In Stock	Mfr. Part No. GS303J1K Mouser Part No 576-GS303J1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3977 30K 10% Learn More about Littelfuse renewable energy	Datasheet	2,728In Stock	£1.04 £0.995 £0.934 £0.882 View £0.849 £0.773 £0.685 £0.616	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750V FAST BLOW 70A Littelfuse L75QS070.V L75QS070.V Littelfuse 1: £91.55 20In Stock	Mfr. Part No. L75QS070.V Mouser Part No 576-L75QS070.V	Littelfuse	Industrial & Electrical Fuses 750V FAST BLOW 70A Learn More about Littelfuse hvac protection control solutions	Datasheet	20In Stock	£91.55 £75.68 £69.64 £64.80 £59.65	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO R GT102B1K Littelfuse 1: £1.15 2,913In Stock	Mfr. Part No. GT102B1K Mouser Part No 576-GT102B1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO R Learn More about Littelfuse renewable energy	Datasheet	2,913In Stock	£1.15 £1.10 £1.04 £0.995 View £0.952 £0.882 £0.856 £0.796	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 40A 750V L75QS040.V Littelfuse 1: £75.70 65In Stock	Mfr. Part No. L75QS040.V Mouser Part No 576-L75QS040.V	Littelfuse	Industrial & Electrical Fuses 40A 750V Learn More about Littelfuse hvac protection control solutions	Datasheet	65In Stock	£75.70 £63.14 £55.50 £49.24 £46.51	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR KC103J2F Littelfuse 1: £3.15 4,388In Stock	Mfr. Part No. KC103J2F Mouser Part No 576-KC103J2F	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR Learn More about Littelfuse renewable energy	Datasheet	4,388In Stock	£3.15 £2.82 £2.71 £2.56 View £2.45 £2.37 £2.14 £1.89	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 450A 700VAC 700VDC FF L70QS POWR-SPEED L70QS450.X Littelfuse 1: £281.84 5In Stock	Mfr. Part No. L70QS450.X Mouser Part No 576-L70QS450.X	Littelfuse	Industrial & Electrical Fuses 450A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	5In Stock	£281.84 £238.91 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 200A L75QS200.V Littelfuse 1: £121.62 66In Stock	Mfr. Part No. L75QS200.V Mouser Part No 576-L75QS200.V	Littelfuse	Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 200A Learn More about Littelfuse hvac protection control solutions	Datasheet	66In Stock	£121.62 £102.11 £91.15 £80.19	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 125A L75QS125.V Littelfuse 1: £121.62 52In Stock	Mfr. Part No. L75QS125.V Mouser Part No 576-L75QS125.V	Littelfuse	Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 125A Learn More about Littelfuse hvac protection control solutions	Datasheet	52In Stock	£121.62 £100.81 £92.76 £82.66	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 1K OHM 10% 102FH1K Littelfuse 1: £1.03 267In Stock	Mfr. Part No. 102FH1K Mouser Part No 803-102FH1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 1K OHM 10% Learn More about Littelfuse do 35 standard	Datasheet	267In Stock	£1.03 £0.773 £0.62 £0.582 View £0.568 £0.478 £0.443 £0.408	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR LC302J2J Littelfuse 1: £1.43 448In Stock	Mfr. Part No. LC302J2J Mouser Part No 803-LC302J2J	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR Learn More about Littelfuse renewable energy	Datasheet	448In Stock	£1.43 £1.10 £0.925 £0.899 View £0.818 £0.716 £0.623	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 30A 250VAC 250VDC FF L25S POWR-SPEED L25S030.T Littelfuse 1: £30.22 38In Stock	Mfr. Part No. L25S030.T Mouser Part No 576-L25S030.T	Littelfuse	Industrial & Electrical Fuses 30A 250VAC 250VDC FF L25S POWR-SPEED Learn More about Littelfuse fast acting high speed fuses	Datasheet	38In Stock	£30.22 £25.07 £23.13 £19.17 View £17.67 £15.84 £14.58	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS 205V4G1K Littelfuse 1: £0.849 490In Stock	Mfr. Part No. 205V4G1K Mouser Part No 803-205V4G1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS Learn More about Littelfuse do 35 standard	Datasheet	490In Stock	£0.849 £0.803 £0.681 £0.64 View £0.624 £0.517 £0.494 £0.457	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 33K OHM 10% DO41 333RH1K Littelfuse 1: £1.24 499In Stock	Mfr. Part No. 333RH1K Mouser Part No 803-333RH1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 33K OHM 10% DO41 Learn More about Littelfuse do 35 standard	Datasheet	499In Stock	£1.24 £0.934 £0.741 £0.697 View £0.679 £0.585 £0.547 £0.499	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 10% EPOXY COATED DC103G2K Littelfuse 1: £1.07 179In Stock	Mfr. Part No. DC103G2K Mouser Part No 803-DC103G2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 10% EPOXY COATED Learn More about Littelfuse renewable energy	Datasheet	179In Stock	£1.07 £0.803 £0.641 £0.602 View £0.588 £0.471 £0.451 £0.432	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR 222E1G1K Littelfuse 1: £0.676 90In Stock	Mfr. Part No. 222E1G1K Mouser Part No 803-222E1G1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR Learn More about Littelfuse do 35 standard	Datasheet	90In Stock	£0.676 £0.515 £0.443 £0.428 View £0.365 £0.351 £0.317 £0.297 £0.261	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR 503JL1A Littelfuse 1: £1.33 201In Stock 500Expected 15/12/2026	Mfr. Part No. 503JL1A Mouser Part No 803-503JL1A	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR Learn More about Littelfuse jl do 35	Datasheet	201In Stock 500Expected 15/12/2026	£1.33 £1.27 £1.07 £1.05 View £0.969 £0.856 £0.826 £0.796 £0.737	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3047 100 10% GS201B1K Littelfuse 1: £1.55 11In Stock 500Expected 29/12/2026	Mfr. Part No. GS201B1K Mouser Part No 576-GS201B1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3047 100 10% Learn More about Littelfuse renewable energy	Datasheet	11In Stock 500Expected 29/12/2026	£1.55 £1.20 £0.995 £0.978 View £0.882 £0.811 £0.773 £0.705	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 100K 1 DEG C DO-35 104JM1A Littelfuse 1: £0.78 5In Stock	Mfr. Part No. 104JM1A Mouser Part No 803-104JM1A	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 100K 1 DEG C DO-35 Learn More about Littelfuse do 35 standard	Datasheet	5In Stock	£0.78 £0.614 £0.575 £0.549 View £0.495 £0.475 £0.457 £0.42	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 200A 700VAC 650VDC FF L70S POWR-SPEED L70S200.V Littelfuse 1: £113.60 11In Stock	Mfr. Part No. L70S200.V Mouser Part No 576-L70S200.V	Littelfuse	Industrial & Electrical Fuses 200A 700VAC 650VDC FF L70S POWR-SPEED Learn More about Littelfuse fast acting high speed fuses	Datasheet	11In Stock	£113.60 £102.83 £83.90 £78.24	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600A 250VAC 200VDC FF L25S POWR-SPEED L25S600.V Littelfuse 1: £86.18 9In Stock	Mfr. Part No. L25S600.V Mouser Part No 576-L25S600.V	Littelfuse	Industrial & Electrical Fuses 600A 250VAC 200VDC FF L25S POWR-SPEED Learn More about Littelfuse fast acting high speed fuses	Datasheet	9In Stock	£86.18 £70.49 £68.99 £60.62 View £56.91 Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR LC303J2K Littelfuse 1: £1.27 498In Stock	Mfr. Part No. LC303J2K Mouser Part No 576-LC303J2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR Learn More about Littelfuse renewable energy	Datasheet	498In Stock	£1.27 £0.952 £0.759 £0.719 View £0.701 £0.59 £0.544 £0.501	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors UL-RATED NTC THERM 50K OHM 10% DO35 USUG1000-503K Littelfuse 1: £1.13 500In Stock	Mfr. Part No. USUG1000-503K Mouser Part No 576-USUG1000-503K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors UL-RATED NTC THERM 50K OHM 10% DO35 Learn More about Littelfuse renewable energy	Datasheet	500In Stock	£1.13 £0.856 £0.681 £0.64 View £0.624 £0.623 £0.524 £0.51 £0.459	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 35A 250VAC 250VDC FF L25S POWR-SPEED L25S035.T Littelfuse 1: £62.91 6In Stock 2Expected 28/10/2026	Mfr. Part No. L25S035.T Mouser Part No 576-L25S035.T	Littelfuse	Industrial & Electrical Fuses 35A 250VAC 250VDC FF L25S POWR-SPEED Learn More about Littelfuse renewable energy	Datasheet	6In Stock 2Expected 28/10/2026	£62.91 £55.52 £39.51	Min.: 1 Mult.: 1

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