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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400 Littelfuse 1: $0.83 19,643In Stock	Mfr. Part No. RUEF400 Mouser Part No 650-RUEF400	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	19,643In Stock	$0.83 $0.762 $0.632 $0.583 View $0.525 $0.475 $0.431 $0.428	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400-2 Littelfuse 1: $1.07 5,013In 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	5,013In Stock	Cut Tape $1.07 $0.937 $0.821 $0.706 Reel $0.472 View $0.636 $0.617 $0.452	Min.: 1 Mult.: 1 : 1,500
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500 Littelfuse 1: $1.06 24,426In 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	24,426In Stock	$1.06 $0.974 $0.808 $0.747 View $0.651 $0.611 $0.568 $0.562 $0.526	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 100A Imax RUEF600 Littelfuse 1: $1.06 9,539In Stock 31,500Expected 31/12/2026	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	9,539In Stock 31,500Expected 31/12/2026	$1.06 $0.979 $0.811 $0.751 View $0.673 $0.622 $0.573 $0.564	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 7A 30V 100A Imax RUEF700 Littelfuse 1: $1.17 10,281In 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	10,281In Stock	$1.17 $1.07 $0.873 $0.821 View $0.737 $0.679 $0.626 $0.623	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 8A 30V 100A Imax RUEF800 Littelfuse 1: $1.28 5,242In 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	5,242In Stock	$1.28 $1.16 $0.949 $0.896 View $0.805 $0.743 $0.685	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 9A 30V 100A Imax RUEF900 Littelfuse 1: $1.66 17,572In 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	17,572In Stock	$1.66 $1.50 $1.18 $1.10 View $1.02 $0.966 $0.892 $0.872 $0.862	Min.: 1 Mult.: 1
Coded Rotary Switches 4Pos SP4T, Thru Hole RTE DIP Switch RTE0400V04 C&K 1: $5.74 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	$5.74 $4.80 $4.45 $3.97 View $3.40 $3.32 $3.17	Min.: 1 Mult.: 1
Coded Rotary Switches 16 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW RTE1600V44 C&K 1: $6.13 3,023In 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	3,023In Stock	$6.13 $5.73 $5.30 $4.54 View $3.93 $3.82 $3.64 $3.51 $3.47	Min.: 1 Mult.: 1
Resettable Fuses - PPTC .9A 30V 100A Imax RUEF090-2 Littelfuse 1: $0.884 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 $0.884 $0.704 $0.593 $0.521 Reel $0.367 View $0.468 $0.432 $0.398 $0.329	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 30V 900MA 100A RUEF RUEF090-AP Littelfuse 1: $0.639 1,364In 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	1,364In Stock	Cut Tape $0.639 $0.579 $0.481 $0.445 View Reel $0.339 $0.40 $0.369 $0.343 $0.339	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 30V 1.1A-HD 100A RUEF RUEF110-AP Littelfuse 1: $0.748 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 $0.748 $0.685 $0.57 $0.524 View Reel $0.322 $0.472 $0.435 $0.398 $0.322 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 1.1A 30V 40A Imax RUEF110S Littelfuse 1: $0.748 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	$0.748 $0.684 $0.642 $0.484 View $0.452 $0.347 $0.32 $0.302	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.35A 30V 40A Imax RUEF135-2 Littelfuse 1: $0.775 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 $0.775 $0.713 $0.703 $0.54 View Reel $0.332 $0.486 $0.447 $0.411 $0.332	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 30V 1.35A-HD 100A RUEF RUEF135-AP Littelfuse 1: $0.775 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 $0.775 $0.704 $0.585 $0.54 View Reel $0.332 $0.486 $0.447 $0.411 $0.332	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 1.35A 30V 40A Imax RUEF135S Littelfuse 1: $0.734 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	$0.734 $0.677 $0.562 $0.432 View $0.389 $0.358 $0.329	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160-2 Littelfuse 1: $0.83 4,568In 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	4,568In Stock	Cut Tape $0.83 $0.762 $0.632 $0.552 View Reel $0.34 $0.513 $0.48 $0.42 $0.34	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160S Littelfuse 1: $0.626 379In Stock	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	379In Stock	$0.626 $0.575 $0.479 $0.442 View $0.397 $0.364 $0.336 $0.326	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 100A Imax RUEF185-1 Littelfuse 1: $0.68 551In 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	551In Stock	$0.68 $0.627 $0.521 $0.481 View $0.432 $0.397 $0.369 $0.367 $0.366	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 40A Imax RUEF185S Littelfuse 1: $0.68 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	$0.68 $0.636 $0.588 $0.45 View $0.405 $0.373 $0.343 $0.341	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 30V 2.5A-HD 100A RUEF RUEF250-AP Littelfuse 1: $0.816 1,227In Stock 4,000Expected 31/12/2026	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 31/12/2026	Cut Tape $0.816 $0.751 $0.623 $0.575 Reel $0.367 View $0.517 $0.477 $0.439 $0.356	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 2.5A 30V 100A Imax RUEF250S Littelfuse 1: $0.666 162In Stock 500Expected 30/12/2026	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 30/12/2026	$0.666 $0.604 $0.502 $0.462 View $0.416 $0.382 $0.352 $0.337	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 2.5A 30V 100A Imax UNCOATED RUEF250U Littelfuse 1: $0.666 2,251In 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	2,251In Stock	$0.666 $0.604 $0.502 $0.461 View $0.416 $0.382 $0.352 $0.332	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300-AP Littelfuse 1: $0.87 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	$0.87 $0.802 $0.801 $0.613 Reel $0.472 View $0.552 $0.54 $0.423 $0.398	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 80 mOhms 40 A 30 VDC - 40 C+ 85 C RUEF300K Littelfuse 1: $0.707 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	$0.707 $0.647 $0.537 $0.496 View $0.446 $0.411 $0.378 $0.358	Min.: 1 Mult.: 1

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