Circuit Protection – Mouser South Africa

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Types of Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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: $136.50 60In 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	60In Stock	$136.50	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED L50QS090.T Littelfuse 1: $56.56 44In Stock	Mfr. Part No. L50QS090.T Mouser Part No 576-L50QS090.T	Littelfuse	Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	44In Stock	$56.56 $49.54 $40.10 $38.47 $36.88	Min.: 1 Mult.: 1
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A PSR070UL0200Z Littelfuse 1: $353.69 18In Stock	Mfr. Part No. PSR070UL0200Z Mouser Part No 576-PSR070UL0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A Learn More about Littelfuse psr fuses	Datasheet	18In Stock	$353.69 $312.09 $302.46	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 80A L75QS080.V Littelfuse 1: $138.26 25In Stock	Mfr. Part No. L75QS080.V Mouser Part No 576-L75QS080.V	Littelfuse	Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 80A Learn More about Littelfuse hvac protection control solutions	Datasheet	25In Stock	$138.26 $114.64 $105.72 $89.97 View $87.20 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 40A 750V L75QS040.V Littelfuse 1: $98.58 77In 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	77In Stock	$98.58 $80.82 $69.92 $64.49 $61.96	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750V FAST BLOW 70A L75QS070.V Littelfuse 1: $113.66 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	$113.66 $89.34 $85.41 $79.47	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 125A L75QS125.V Littelfuse 1: $152.96 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	$152.96 $121.13 $109.58 $106.07	Min.: 1 Mult.: 1
SCRs THYRISTOR 1500V IGBT MMJX1H40N150 IXYS 1: $47.12 378In Stock 390Expected 2026/10/16	Mfr. Part No. MMJX1H40N150 Mouser Part No 747-MMJX1H40N150	IXYS	SCRs THYRISTOR 1500V IGBT	Datasheet	378In Stock 390Expected 2026/10/16	$47.12 $35.80	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 200A L75QS200.V Littelfuse 1: $155.13 74In 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	74In Stock	$155.13 $130.94 $112.86 $103.05	Min.: 1 Mult.: 1
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A PSR072DL0500X Littelfuse 1: $556.04 5In Stock	Mfr. Part No. PSR072DL0500X Mouser Part No 576-PSR072DL0500X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A Learn More about Littelfuse psr fuses	Datasheet	5In Stock	$556.04 $438.20 $399.82 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750V FAST BLOW 250A L75QS250.X Littelfuse 1: $279.72 14In Stock	Mfr. Part No. L75QS250.X Mouser Part No 576-L75QS250.X	Littelfuse	Industrial & Electrical Fuses 750V FAST BLOW 250A Learn More about Littelfuse hvac protection control solutions	Datasheet	14In Stock	$279.72 $232.32 $214.45 $198.62	Min.: 1 Mult.: 1
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 400A PSR032UL0400X Littelfuse 1: $372.33 2In Stock	Mfr. Part No. PSR032UL0400X Mouser Part No 576-PSR032UL0400X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 400A Learn More about Littelfuse psr fuses	Datasheet	2In Stock	$372.33 $291.46 $277.60 $276.90	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 200A 1000V SIZE 70 Flush End Mtrc Thred PSR070FL0200Z Littelfuse 1: $408.76 1In Stock	Mfr. Part No. PSR070FL0200Z Mouser Part No 576-PSR070FL0200Z	Littelfuse	Industrial & Electrical Fuses 200A 1000V SIZE 70 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	1In Stock	$408.76 $329.69 $309.10 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 90A L75QS090.V Littelfuse 1: $138.26 5In Stock	Mfr. Part No. L75QS090.V Mouser Part No 576-L75QS090.V	Littelfuse	Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 90A Learn More about Littelfuse hvac protection control solutions	Datasheet	5In Stock	$138.26 $114.64 $97.60 $90.93 View $87.91 Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 2% LUG USUR1000-203G-06 Littelfuse 1: $13.33 33In Stock	Mfr. Part No. USUR1000-203G-06 Mouser Part No 576-USUR1000-203G-06	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 2% LUG Learn More about Littelfuse thermistor probes assemblies	Datasheet	33In Stock	$13.33 $11.78 $10.56 $10.00 View $8.70 $8.56 $8.40	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M PSR030FL0125Z Littelfuse 1: $171.60 9In Stock	Mfr. Part No. PSR030FL0125Z Mouser Part No 576-PSR030FL0125Z	Littelfuse	Industrial & Electrical Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	9In Stock	$171.60 $171.59	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 30K OHM 2% LUG USUR1000-303G-06 Littelfuse 1: $9.99 1In Stock 50Expected 2026/10/14	Mfr. Part No. USUR1000-303G-06 Mouser Part No 576-USUR1000-303G-06	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 30K OHM 2% LUG Learn More about Littelfuse thermistor probes assemblies	Datasheet	1In Stock 50Expected 2026/10/14	$9.99	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED L50QS150.V Littelfuse 1: $98.13 147In Stock	Mfr. Part No. L50QS150.V Mouser Part No 576-L50QS150.V	Littelfuse	Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	147In Stock	$98.13 $81.84 $75.53 $63.81 $62.77	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED L50QS200.V Littelfuse 1: $100.60 39In Stock	Mfr. Part No. L50QS200.V Mouser Part No 576-L50QS200.V	Littelfuse	Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	39In Stock	$100.60 $83.56 $83.25	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED L50QS250.V Littelfuse 1: $156.52 20In Stock	Mfr. Part No. L50QS250.V Mouser Part No 576-L50QS250.V	Littelfuse	Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	20In Stock	$156.52 $135.73 $125.36 $98.94 $91.06	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED L50QS300.V Littelfuse 1: $154.41 27In Stock 33Expected 2026/11/12	Mfr. Part No. L50QS300.V Mouser Part No 576-L50QS300.V	Littelfuse	Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	27In Stock 33Expected 2026/11/12	$154.41 $129.78 $119.66 $98.05 $91.06	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED L50QS600.X Littelfuse 1: $228.66 56In Stock	Mfr. Part No. L50QS600.X Mouser Part No 576-L50QS600.X	Littelfuse	Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	56In Stock	$228.66 $190.36 $173.58 $153.12	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 900V FAST BLOW 800A PSR073UL0800X Littelfuse 1: $604.64 3In Stock 3Expected 2027/03/11	Mfr. Part No. PSR073UL0800X Mouser Part No 576-PSR073UL0800X	Littelfuse	Industrial & Electrical Fuses 900V FAST BLOW 800A	Datasheet	3In Stock 3Expected 2027/03/11	$604.64 $500.76 $461.39	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED L50QS035.T Littelfuse 1: $63.17 46In Stock 73Expected 2026/11/17	Mfr. Part No. L50QS035.T Mouser Part No 576-L50QS035.T	Littelfuse	Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	46In Stock 73Expected 2026/11/17	$63.17 $53.80 $49.49 $42.16 View $39.00 $36.30	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 150A L75QS150.V Littelfuse 1: $180.59 30In Stock	Mfr. Part No. L75QS150.V Mouser Part No 576-L75QS150.V	Littelfuse	Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 150A Learn More about Littelfuse hvac protection control solutions	Datasheet	30In Stock	$180.59 $150.32 $138.57 $113.24	Min.: 1 Mult.: 1

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