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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 4A 30V 100A Imax RUEF400-2 Littelfuse 1: £0.593 4,933In Stock	Mfr. Part No. RUEF400-2 Mouser Part No 650-RUEF400-2	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4,933In Stock	Cut Tape £0.593 £0.546 £0.453 £0.411 Reel £0.26 View £0.369 £0.336 £0.25	Min.: 1 Mult.: 1 : 1,500
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500 Littelfuse 1: £0.586 22,432In Stock	Mfr. Part No. RUEF500 Mouser Part No 650-RUEF500	Littelfuse	Resettable Fuses - PPTC 5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	22,432In Stock	£0.586 £0.538 £0.446 £0.408 View £0.36 £0.334 £0.313 £0.309 £0.291	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 100A Imax RUEF600 Littelfuse 1: £0.586 9,428In Stock 31,500On Order	Mfr. Part No. RUEF600 Mouser Part No 650-RUEF600	Littelfuse	Resettable Fuses - PPTC 6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	9,428In Stock 31,500On Order On Order Ship Dates Mfr. No: RUEF600 Stock: 9,428 Can Dispatch Immediately On Order: 12,250 Expected 05/11/2026 19,250 Expected 18/01/2027 Factory Lead Time: 17 Weeks	£0.586 £0.54 £0.449 £0.415 View £0.386 £0.382 £0.376 £0.372 £0.368	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 40A Imax RUEF600K-2 Littelfuse 1: £0.743 4,542In Stock	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	4,542In Stock	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 Littelfuse 1: £0.646 10,211In Stock	Mfr. Part No. RUEF700 Mouser Part No 650-RUEF700	Littelfuse	Resettable Fuses - PPTC 7A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	10,211In Stock	£0.646 £0.592 £0.47 £0.443 View £0.407 £0.375 £0.354 £0.347 £0.344	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 8A 30V 100A Imax RUEF800 Littelfuse 1: £0.705 5,192In Stock	Mfr. Part No. RUEF800 Mouser Part No 650-RUEF800	Littelfuse	Resettable Fuses - PPTC 8A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	5,192In Stock	£0.705 £0.627 £0.536 £0.459 View £0.43 £0.395	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 9A 30V 100A Imax RUEF900 Littelfuse 1: £0.863 17,300In Stock	Mfr. Part No. RUEF900 Mouser Part No 650-RUEF900	Littelfuse	Resettable Fuses - PPTC 9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	17,300In Stock	£0.863 £0.796 £0.66 £0.608 View £0.546 £0.505 £0.493	Min.: 1 Mult.: 1
Coded Rotary Switches 4Pos SP4T, Thru Hole RTE DIP Switch RTE0400V04 C&K 1: £3.17 3,291In Stock	Mfr. Part No. RTE0400V04 Mouser Part No 611-RTE0400V04	C&K	Coded Rotary Switches 4Pos SP4T, Thru Hole RTE DIP Switch Learn More about C&K ckswitches rte switches	Datasheet	3,291In Stock	£3.17 £2.65 £2.45 £2.19 View £1.88 £1.83 £1.75	Min.: 1 Mult.: 1
Coded Rotary Switches 16 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW RTE1600V44 C&K 1: £3.39 3,007In Stock	Mfr. Part No. RTE1600V44 Mouser Part No 611-RTE1600V44	C&K	Coded Rotary Switches 16 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW Learn More about C&K ckswitches rte switches	Datasheet	3,007In Stock	£3.39 £3.16 £2.92 £2.51 View £2.17 £2.11 £2.01 £1.94 £1.92	Min.: 1 Mult.: 1
Resettable Fuses - PPTC .9A 30V 100A Imax RUEF090-2 Littelfuse 1: £0.405 4,538In Stock	Mfr. Part No. RUEF090-2 Mouser Part No 650-RUEF090-2	Littelfuse	Resettable Fuses - PPTC .9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4,538In Stock	Cut Tape £0.405 £0.355 £0.31 £0.272 View Reel £0.175 £0.246 £0.228 £0.211 £0.175	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 30V 900MA 100A RUEF RUEF090-AP Littelfuse 1: £0.353 1,264In Stock	Mfr. Part No. RUEF090-AP Mouser Part No 650-RUEF090-AP	Littelfuse	Resettable Fuses - PPTC 30V 900MA 100A RUEF Learn More about Littelfuse radial leaded pptcs	Datasheet	1,264In Stock	Cut Tape £0.353 £0.32 £0.265 £0.245 Reel £0.188 View £0.221 £0.189 £0.187	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 30V 1.1A-HD 100A RUEF RUEF110-AP Littelfuse 1: £0.413 1,966In Stock	Mfr. Part No. RUEF110-AP Mouser Part No 650-RUEF110-AP	Littelfuse	Resettable Fuses - PPTC 30V 1.1A-HD 100A RUEF Learn More about Littelfuse radial leaded pptcs	Datasheet	1,966In Stock	Cut Tape £0.413 £0.378 £0.314 £0.29 View Reel £0.178 £0.26 £0.223 £0.178 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 1.1A 30V 40A Imax RUEF110S Littelfuse 1: £0.33 311In Stock	Mfr. Part No. RUEF110S Mouser Part No 650-RUEF110S	Littelfuse	Resettable Fuses - PPTC 1.1A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	311In Stock	£0.33 £0.303 £0.251 £0.232 View £0.209 £0.191 £0.176 £0.168	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.35A 30V 40A Imax RUEF135-2 Littelfuse 1: £0.428 4,170In Stock	Mfr. Part No. RUEF135-2 Mouser Part No 650-RUEF135-2	Littelfuse	Resettable Fuses - PPTC 1.35A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4,170In Stock	Cut Tape £0.428 £0.394 £0.368 £0.298 View Reel £0.183 £0.268 £0.247 £0.228 £0.183	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 30V 1.35A-HD 100A RUEF RUEF135-AP Littelfuse 1: £0.428 2,910In Stock	Mfr. Part No. RUEF135-AP Mouser Part No 650-RUEF135-AP	Littelfuse	Resettable Fuses - PPTC 30V 1.35A-HD 100A RUEF Learn More about Littelfuse radial leaded pptcs	Datasheet	2,910In Stock	Cut Tape £0.428 £0.388 £0.323 £0.298 View Reel £0.183 £0.268 £0.228 £0.183	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 1.35A 30V 40A Imax RUEF135S Littelfuse 1: £0.405 80In Stock	Mfr. Part No. RUEF135S Mouser Part No 650-RUEF135S	Littelfuse	Resettable Fuses - PPTC 1.35A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	80In Stock	£0.405 £0.378 £0.31 £0.238 View £0.215 £0.197 £0.182	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160-2 Littelfuse 1: £0.458 4,558In Stock	Mfr. Part No. RUEF160-2 Mouser Part No 650-RUEF160-2	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4,558In Stock	Cut Tape £0.458 £0.421 £0.349 £0.322 View Reel £0.188 £0.29 £0.267 £0.246 £0.188	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160S Littelfuse 1: £0.346 369In Stock 500Expected 18/01/2027	Mfr. Part No. RUEF160S Mouser Part No 650-RUEF160S	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	369In Stock 500Expected 18/01/2027	£0.346 £0.318 £0.265 £0.244 View £0.219 £0.201 £0.185 £0.18	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 100A Imax RUEF185-1 Littelfuse 1: £0.375 541In Stock	Mfr. Part No. RUEF185-1 Mouser Part No 650-RUEF185-1	Littelfuse	Resettable Fuses - PPTC 1.85A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	541In Stock	£0.375 £0.346 £0.287 £0.265 View £0.238 £0.219 £0.203	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 40A Imax RUEF185S Littelfuse 1: £0.375 390In Stock	Mfr. Part No. RUEF185S Mouser Part No 650-RUEF185S	Littelfuse	Resettable Fuses - PPTC 1.85A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	390In Stock	£0.375 £0.351 £0.325 £0.249 View £0.223 £0.206 £0.189	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 30V 2.5A-HD 100A RUEF RUEF250-AP Littelfuse 1: £0.45 1,227In Stock 4,000Expected 05/11/2026	Mfr. Part No. RUEF250-AP Mouser Part No 650-RUEF250-AP	Littelfuse	Resettable Fuses - PPTC 30V 2.5A-HD 100A RUEF Learn More about Littelfuse radial leaded pptcs	Datasheet	1,227In Stock 4,000Expected 05/11/2026	Cut Tape £0.45 £0.415 £0.344 £0.318 Reel £0.203 View £0.285 £0.243 £0.196	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 2.5A 30V 100A Imax RUEF250S Littelfuse 1: £0.368 162In Stock 500Expected 18/01/2027	Mfr. Part No. RUEF250S Mouser Part No 650-RUEF250S	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	162In Stock 500Expected 18/01/2027	£0.368 £0.333 £0.277 £0.255 View £0.23 £0.211 £0.195 £0.187	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 2.5A 30V 100A Imax UNCOATED RUEF250U Littelfuse 1: £0.368 2,248In Stock	Mfr. Part No. RUEF250U Mouser Part No 650-RUEF250U	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 100A Imax UNCOATED Learn More about Littelfuse radial leaded pptcs	Datasheet	2,248In Stock	£0.368 £0.333 £0.277 £0.255 View £0.23 £0.211 £0.195 £0.183	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300-AP Littelfuse 1: £0.48 2,075In Stock	Mfr. Part No. RUEF300-AP Mouser Part No 650-RUEF300-AP	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	2,075In Stock	£0.48 £0.443 £0.416 £0.339 Reel £0.222 View £0.305 £0.281 £0.211	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 80 mOhms 40 A 30 VDC - 40 C+ 85 C RUEF300K Littelfuse 1: £0.413 32In Stock	Mfr. Part No. RUEF300K Mouser Part No 650-RUEF300K	Littelfuse	Resettable Fuses - PPTC 80 mOhms 40 A 30 VDC - 40 C+ 85 C Learn More about Littelfuse radial leaded pptcs	Datasheet	32In Stock	£0.413 £0.378 £0.314 £0.291 View £0.261 £0.24 £0.222 £0.22 £0.197	Min.: 1 Mult.: 1

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