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Mersen Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.
Industrial & Electrical Fuses 600V 125A CLASS J FUSE A4J125 Mersen 1: ¥47,355.1 3In Stock	Mfr. Part # A4J125 Mouser Part # 737-A4J125	Mersen	Industrial & Electrical Fuses 600V 125A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	3In Stock	¥47,355.1 ¥36,399.2 ¥34,112 ¥30,432.8	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 150A CLASS J FUSE A4J150 Mersen 1: ¥41,083.2 2In Stock	Mfr. Part # A4J150 Mouser Part # 737-A4J150	Mersen	Industrial & Electrical Fuses 600V 150A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	2In Stock	¥41,083.2 ¥34,052.2 ¥31,389.6 ¥25,933.2	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 20A CLASS J FUSE A4J20 Mersen 1: ¥10,522.4 17In Stock	Mfr. Part # A4J20 Mouser Part # 737-A4J20	Mersen	Industrial & Electrical Fuses 600V 20A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	17In Stock	¥10,522.4 ¥8,728.6 ¥8,050.9 ¥6,663.9 View ¥6,139.1 ¥5,502.9	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 225A CLASS J FUSE A4J225 Mersen 1: ¥84,727.6 2In Stock	Mfr. Part # A4J225 Mouser Part # 737-A4J225	Mersen	Industrial & Electrical Fuses 600V 225A CLASS J FUSE	Datasheet	2In Stock	¥84,727.6 ¥70,183.9 ¥64,671	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 25A CLASS J FUSE A4J25 Mersen 1: ¥10,864.6 6In Stock	Mfr. Part # A4J25 Mouser Part # 737-A4J25	Mersen	Industrial & Electrical Fuses 600V 25A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	6In Stock	¥10,864.6 ¥9,012.6 ¥8,311.6 ¥6,879.9 View ¥6,336.7 ¥5,679	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 3A CLASS J FUSE A4J3 Mersen 1: ¥10,773.2 10In Stock	Mfr. Part # A4J3 Mouser Part # 737-A4J3	Mersen	Industrial & Electrical Fuses 600V 3A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	10In Stock	¥10,773.2 ¥8,937.8 ¥8,936.2 ¥7,795.1 View ¥7,511 ¥7,177.2 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 30A CLASS J FUSE A4J30 Mersen 1: ¥8,992.7 13In Stock	Mfr. Part # A4J30 Mouser Part # 737-A4J30	Mersen	Industrial & Electrical Fuses 600V 30A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	13In Stock	¥8,992.7 ¥7,461.2 ¥6,881.5 ¥5,697.2 View ¥5,247.1 ¥4,704	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 40A CLASS J FUSE A4J40 Mersen 1: ¥16,005.4 10In Stock	Mfr. Part # A4J40 Mouser Part # 737-A4J40	Mersen	Industrial & Electrical Fuses 600V 40A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	10In Stock	¥16,005.4 ¥13,276.4 ¥12,241.6 ¥10,128.8 ¥9,326.5	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 60A CLASS J FUSE A4J60 Mersen 1: ¥14,058.7 7In Stock	Mfr. Part # A4J60 Mouser Part # 737-A4J60	Mersen	Industrial & Electrical Fuses 600V 60A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	7In Stock	¥14,058.7 ¥11,660.2 ¥10,753.3 ¥8,898 ¥8,193.7	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 70A CLASS J FUSE A4J70 Mersen 1: ¥23,551.3 6In Stock	Mfr. Part # A4J70 Mouser Part # 737-A4J70	Mersen	Industrial & Electrical Fuses 600V 70A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	6In Stock	¥23,551.3 ¥19,528.4 ¥18,006.9 ¥14,889.2 ¥13,706.6	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 80A CLASS J FUSE A4J80 Mersen 1: ¥27,454.7 6In Stock	Mfr. Part # A4J80 Mouser Part # 737-A4J80	Mersen	Industrial & Electrical Fuses 600V 80A CLASS J FUSE Learn More about Mersen a4j power fuses	Datasheet	6In Stock	¥27,454.7 ¥22,769 ¥20,993.4 ¥17,362.4 ¥15,982.1	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 94596-500V 35A SEMICOND FUSE A50P35-4 Mersen 1: ¥17,121.6 1In Stock New Product	Mfr. Part # A50P35-4 Mouser Part # 737-A50P35-4 New Product	Mersen	Industrial & Electrical Fuses 94596-500V 35A SEMICOND FUSE	Datasheet	1In Stock	¥17,121.6 ¥13,356.1 ¥11,869.5 ¥11,495.8 View ¥11,170.2 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses SC FUSE 500V 400A P BLADE A50P400-4 Mersen 1: ¥38,497 1In Stock	Mfr. Part # A50P400-4 Mouser Part # 737-A50P400-4	Mersen	Industrial & Electrical Fuses SC FUSE 500V 400A P BLADE	Datasheet	1In Stock	¥38,497 ¥34,791.3 ¥33,387.8 ¥31,220.2	Min.: 1 Mult.: 1
Industrial & Electrical Fuses SC FUSE 500V 125A QS BLADE A50QS125-4 Mersen 1: ¥48,438.1 7In Stock	Mfr. Part # A50QS125-4 Mouser Part # 737-A50QS125-4	Mersen	Industrial & Electrical Fuses SC FUSE 500V 125A QS BLADE	Datasheet	7In Stock	¥48,438.1 ¥48,436.4 ¥33,387.8	Min.: 1 Mult.: 1
Industrial & Electrical Fuses SC FUSE 500V 250A QS BLADE A50QS250-4 Mersen 1: ¥31,793.2 3In Stock 10Expected 12/7/2026	Mfr. Part # A50QS250-4 Mouser Part # 737-A50QS250-4	Mersen	Industrial & Electrical Fuses SC FUSE 500V 250A QS BLADE	Datasheet	3In Stock 10Expected 12/7/2026	¥31,793.2 ¥26,358.4 ¥24,300.4 ¥20,084.8	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 500V 600A SEMICOND FUSE (A50Q A50QS600-4 Mersen 1: ¥50,703.7 3In Stock	Mfr. Part # A50QS600-4 Mouser Part # 737-A50QS600-4	Mersen	Industrial & Electrical Fuses 500V 600A SEMICOND FUSE (A50Q	Datasheet	3In Stock	¥50,703.7 ¥39,762.7 ¥37,907.3 ¥31,836.4	Min.: 1 Mult.: 1
Industrial & Electrical Fuses SC FUSE 500V 80A QS BLADE A50QS80-4 Mersen 1: ¥17,903.9 1In Stock 20On Order	Mfr. Part # A50QS80-4 Mouser Part # 737-A50QS80-4	Mersen	Industrial & Electrical Fuses SC FUSE 500V 80A QS BLADE	Datasheet	1In Stock 20On Order	¥17,903.9 ¥14,847.7 ¥12,623.6 ¥11,083.9 ¥10,427.8	Min.: 1 Mult.: 1
Industrial & Electrical Fuses SC FUSE 500V 90A QS BLADE A50QS90-4 Mersen 1: ¥16,794.4 1In Stock New Product	Mfr. Part # A50QS90-4 Mouser Part # 737-A50QS90-4 New Product	Mersen	Industrial & Electrical Fuses SC FUSE 500V 90A QS BLADE	Datasheet	1In Stock	¥16,794.4 ¥14,756.3 ¥12,623.6 ¥12,387.7 View ¥11,972.5 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 94867-FUSE,FORM 101 A70QS100-4 Mersen 1: ¥29,911.3 3In Stock	Mfr. Part # A70QS100-4 Mouser Part # 737-A70QS100-4	Mersen	Industrial & Electrical Fuses 94867-FUSE,FORM 101	Datasheet	3In Stock	¥29,911.3 ¥26,355.1 ¥24,300.4 ¥20,084.8	Min.: 1 Mult.: 1
Industrial & Electrical Fuses SC FUSE 700V 150A QS BLADE K A70QS150-4K Mersen 1: ¥40,603.1 7In Stock	Mfr. Part # A70QS150-4K Mouser Part # 737-A70QS150-4K	Mersen	Industrial & Electrical Fuses SC FUSE 700V 150A QS BLADE K	Datasheet	7In Stock	¥40,603.1 ¥33,653.5 ¥31,022.5 ¥25,630.9	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 15A CLASS G FUSE AG15 Mersen 1: ¥2,423.4 8In Stock	Mfr. Part # AG15 Mouser Part # 737-AG15	Mersen	Industrial & Electrical Fuses 600V 15A CLASS G FUSE	Datasheet	8In Stock	¥2,423.4 ¥1,903.5 ¥1,815.5 ¥1,529.8 View ¥1,416.8 ¥1,270.7 ¥1,171 ¥1,078	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 480V 30A CLASS G FUSE AG30 Mersen 1: ¥4,290.4 4In Stock	Mfr. Part # AG30 Mouser Part # 737-AG30	Mersen	Industrial & Electrical Fuses 480V 30A CLASS G FUSE	Datasheet	4In Stock	¥4,290.4 ¥3,370.2 ¥3,214 ¥2,707.4 View ¥2,506.4 ¥2,245.7 ¥2,069.6	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 480V 40A CLASS G FUSE AG40 Mersen 1: ¥4,916.6 28In Stock	Mfr. Part # AG40 Mouser Part # 737-AG40	Mersen	Industrial & Electrical Fuses 480V 40A CLASS G FUSE	Datasheet	28In Stock	¥4,916.6 ¥3,861.8 ¥3,682.4 ¥3,102.7 View ¥2,871.9 ¥2,572.9 ¥2,370.2	Min.: 1 Mult.: 1
Industrial & Electrical Fuses J TD FUSE 600V 25A AJT AJT25 Mersen 1: ¥13,156.8 1In Stock 20Expected 11/30/2026 New Product	Mfr. Part # AJT25 Mouser Part # 737-AJT25 New Product	Mersen	Industrial & Electrical Fuses J TD FUSE 600V 25A AJT	Datasheet	1In Stock 20Expected 11/30/2026	¥13,156.8 ¥12,412.7 ¥10,549 ¥9,080.7 View ¥8,562.5 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 600V 4A J TD NON-IND AJT4N Mersen 1: ¥16,096.8 8In Stock	Mfr. Part # AJT4N Mouser Part # 737-AJT4N	Mersen	Industrial & Electrical Fuses 600V 4A J TD NON-IND	Datasheet	8In Stock	¥16,096.8 ¥10,756.6 ¥9,926.1	Min.: 1 Mult.: 1

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Mersen Circuit Protection

Types of Circuit Protection