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PLC Design Solutions

Littelfuse Programmable Logic Controller (PLC) Design Solutions feature products that address the evolving demands of industrial automation, artificial intelligence (AI), machine learning (ML), renewable energy, and electric vehicles (EVs). These PLC circuit protection and power control products are designed to meet these challenges with precision and reliability. The components improve system uptime and resilience, from safeguarding power supplies to ensuring the reliable switching of loads. This PLC Design Solutions lineup from Littelfuse helps streamline designs and speed up time to market while ensuring compliance with global safety standards.

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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.
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300K-2 Littelfuse 1: £0.48 3,717In Stock	Mfr. Part No. RUEF300K-2 Mouser Part No 650-RUEF300K-2	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3,717In Stock	Cut Tape £0.48 £0.443 £0.368 £0.339 View Reel £0.211 £0.305 £0.281 £0.259 £0.211	Min.: 1 Mult.: 1 : 2,500
Resettable Fuses - PPTC 4A 30V 40A Imax RUEF400-1 Littelfuse 1: £0.48 771In Stock	Mfr. Part No. RUEF400-1 Mouser Part No 650-RUEF400-1	Littelfuse	Resettable Fuses - PPTC 4A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	771In Stock	£0.48 £0.442 £0.367 £0.339 View £0.304 £0.303 £0.258	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 30V 4A-HD 100A RUEF RUEF400-AP Littelfuse 1: £0.563 1,789In Stock	Mfr. Part No. RUEF400-AP Mouser Part No 650-RUEF400-AP	Littelfuse	Resettable Fuses - PPTC 30V 4A-HD 100A RUEF Learn More about Littelfuse radial leaded pptcs	Datasheet	1,789In Stock	Cut Tape £0.563 £0.515 £0.428 £0.395 View Reel £0.258 £0.355 £0.327 £0.258	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 4A 30V 40A Imax RUEF400K Littelfuse 1: £0.488 2,016In Stock	Mfr. Part No. RUEF400K Mouser Part No 650-RUEF400K	Littelfuse	Resettable Fuses - PPTC 4A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	2,016In Stock	£0.488 £0.445 £0.37 £0.341 View £0.307 £0.282 £0.26 £0.237	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 5A 30V 40A Imax RUEF500-1 Littelfuse 1: £0.578 1,206In Stock	Mfr. Part No. RUEF500-1 Mouser Part No 650-RUEF500-1	Littelfuse	Resettable Fuses - PPTC 5A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,206In Stock	£0.578 £0.528 £0.438 £0.405 View £0.363 £0.308	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500-2 Littelfuse 1: £0.668 3,214In Stock	Mfr. Part No. RUEF500-2 Mouser Part No 650-RUEF500-2	Littelfuse	Resettable Fuses - PPTC 5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3,214In Stock	Cut Tape £0.668 £0.582 £0.487 £0.47 Reel £0.312 View £0.424 £0.391 £0.304	Min.: 1 Mult.: 1 : 1,500
Resettable Fuses - PPTC 5A 30V 40A Imax RUEF500K Littelfuse 1: £0.555 1,065In Stock 1,000Expected 21/12/2026	Mfr. Part No. RUEF500K Mouser Part No 650-RUEF500K	Littelfuse	Resettable Fuses - PPTC 5A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,065In Stock 1,000Expected 21/12/2026	£0.555 £0.507 £0.421 £0.388 View £0.348 £0.297	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 40A Imax RUEF600-1 Littelfuse 1: £0.63 447In Stock	Mfr. Part No. RUEF600-1 Mouser Part No 650-RUEF600-1	Littelfuse	Resettable Fuses - PPTC 6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	447In Stock	£0.63 £0.581 £0.483 £0.445 View £0.40 £0.368 £0.34	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 40A Imax RUEF600-2 Littelfuse 1: £0.751 260In Stock	Mfr. Part No. RUEF600-2 Mouser Part No 650-RUEF600-2	Littelfuse	Resettable Fuses - PPTC 6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	260In Stock	Cut Tape £0.751 £0.692 £0.574 £0.564 Reel £0.416 View £0.519 £0.346	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 6A 30V 100A Imax RUEF600-AP Littelfuse 1: £0.684 590In Stock	Mfr. Part No. RUEF600-AP Mouser Part No 650-RUEF600-AP	Littelfuse	Resettable Fuses - PPTC 6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	590In Stock	Cut Tape £0.684 £0.629 £0.523 £0.482 £0.433 Reel £0.368	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 6A 30V 100A Imax RUEF600K Littelfuse 1: £0.608 46In Stock 1,000Expected 31/12/2026	Mfr. Part No. RUEF600K Mouser Part No 650-RUEF600K	Littelfuse	Resettable Fuses - PPTC 6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	46In Stock 1,000Expected 31/12/2026	£0.608 £0.556 £0.462 £0.426 View £0.382 £0.354 £0.325 £0.324	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 40A Imax RUEF600K-2 Littelfuse 1: £0.743 1,814In Stock 3,000Expected 06/01/2027	Mfr. Part No. RUEF600K-2 Mouser Part No 650-RUEF600K-2	Littelfuse	Resettable Fuses - PPTC 6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,814In Stock 3,000Expected 06/01/2027	Cut Tape £0.743 £0.685 £0.569 £0.525 Reel £0.343 View £0.472 £0.436 £0.341	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 7A 30V 100A Imax RUEF700-2 Littelfuse 1: £0.796 996In Stock 1,000Expected 26/10/2026	Mfr. Part No. RUEF700-2 Mouser Part No 650-RUEF700-2	Littelfuse	Resettable Fuses - PPTC 7A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	996In Stock 1,000Expected 26/10/2026	Cut Tape £0.796 £0.734 £0.587 £0.562 View Reel £0.368 £0.506 £0.466 £0.368	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 7A 30V 100A Imax RUEF700K Littelfuse 1: £0.646 272In Stock	Mfr. Part No. RUEF700K Mouser Part No 650-RUEF700K	Littelfuse	Resettable Fuses - PPTC 7A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	272In Stock	£0.646 £0.595 £0.494 £0.456 View £0.409 £0.378 £0.347	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 30V 7A-HD 40A MAX (R) RUEF700K-2 Littelfuse 1: £0.796 997In Stock	Mfr. Part No. RUEF700K-2 Mouser Part No 650-RUEF700K-2	Littelfuse	Resettable Fuses - PPTC 30V 7A-HD 40A MAX (R) Learn More about Littelfuse radial leaded pptcs	Datasheet	997In Stock	Cut Tape £0.796 £0.728 £0.592 £0.558 View Reel £0.365 £0.501 £0.478 £0.365	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 8A 30V 40A Imax RUEF800-2 Littelfuse 1: £0.863 720In Stock 1,000Expected 26/10/2026	Mfr. Part No. RUEF800-2 Mouser Part No 650-RUEF800-2	Littelfuse	Resettable Fuses - PPTC 8A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	720In Stock 1,000Expected 26/10/2026	Cut Tape £0.863 £0.788 £0.637 £0.607 Reel £0.457 View £0.546 £0.503 £0.431 £0.40	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 8A 30V 40A Imax RUEF800K-2 Littelfuse 1: £0.863 1,174In Stock	Mfr. Part No. RUEF800K-2 Mouser Part No 650-RUEF800K-2	Littelfuse	Resettable Fuses - PPTC 8A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,174In Stock	Cut Tape £0.863 £0.78 £0.622 £0.593 Reel £0.438 View £0.539 £0.513 £0.401	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 9A 30V 100A Imax RUEF900-2 Littelfuse 1: £1.04 1,642In Stock	Mfr. Part No. RUEF900-2 Mouser Part No 650-RUEF900-2	Littelfuse	Resettable Fuses - PPTC 9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,642In Stock	Cut Tape £1.04 £0.96 £0.796 £0.731 View Reel £0.491 £0.657 £0.606 £0.491	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 9A 30V 40A Imax RUEF900K Littelfuse 1: £0.863 1,442In Stock	Mfr. Part No. RUEF900K Mouser Part No 650-RUEF900K	Littelfuse	Resettable Fuses - PPTC 9A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,442In Stock	£0.863 £0.796 £0.66 £0.608 View £0.546 £0.516 £0.485	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 30V 2.5A-HD 40A MAX RUEF250U-0.148 Littelfuse 1: £0.533 48In Stock	Mfr. Part No. RUEF250U-0.148 Mouser Part No 650-RUEF250U-0.148	Littelfuse	Resettable Fuses - PPTC 30V 2.5A-HD 40A MAX Learn More about Littelfuse indoor led protection	Datasheet	48In Stock	£0.533 £0.407 View £0.34 £0.288 £0.279 £0.237 £0.218 £0.21 £0.194	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 2.5A 30V 100A Imax RUEF250 Littelfuse 1: £0.383 60,852On Order	Mfr. Part No. RUEF250 Mouser Part No 650-RUEF250	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	60,852On Order On Order Ship Dates Mfr. No: RUEF250 Stock: 0 On Order: 36,852 Expected 09/11/2026 24,000 Expected 10/11/2026 Factory Lead Time: 17 Weeks	£0.383 £0.354 £0.293 £0.25 View £0.238 £0.222 £0.214	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 8A 30V 40A Imax RUEF800K Littelfuse 1: £0.713 1In Stock 250Expected 16/11/2026	Mfr. Part No. RUEF800K Mouser Part No 650-RUEF800K	Littelfuse	Resettable Fuses - PPTC 8A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1In Stock 250Expected 16/11/2026	£0.713 £0.653 £0.542 £0.501 View £0.449 £0.415 £0.383	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.1A 30V 100A Imax RUEF110 Littelfuse 1: £0.353 19,423On Order	Mfr. Part No. RUEF110 Mouser Part No 650-RUEF110	Littelfuse	Resettable Fuses - PPTC 1.1A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	19,423On Order On Order Ship Dates Mfr. No: RUEF110 Stock: 0 On Order: 7,923 Expected 21/12/2026 11,500 Expected 28/12/2026 Factory Lead Time: 17 Weeks	£0.353 £0.307 £0.265 £0.223 View £0.212 £0.198 £0.188 £0.183	Min.: 1 Mult.: 1
Coded Rotary Switches Low Profile Rotary DIP RTE1000G34 C&K 6,250: £2.59 Non-Stocked Lead-Time 29 Weeks	Mfr. Part No. RTE1000G34 Mouser Part No 611-RTE1000G34	C&K	Coded Rotary Switches Low Profile Rotary DIP Learn More about C&K ckswitches rte switches	Datasheet	Non-Stocked Lead-Time 29 Weeks	Cut Tape £2.59	Min.: 6,250 Mult.: 1,250 : 1,250
Coded Rotary Switches FLUSH THRU HOLE RTE1000N34 C&K 1,950: £2.41 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. RTE1000N34 Mouser Part No 611-RTE1000N34	C&K	Coded Rotary Switches FLUSH THRU HOLE Learn More about C&K ckswitches rte switches	Datasheet	Non-Stocked Lead-Time 13 Weeks	£2.41 Quote Quote	Min.: 1,950 Mult.: 1,950

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