Mersen collection

Mersen

Mersen is a global expert in electrical protection and power transfer technologies, widely utilized in industrial automation for circuit protection, power distribution, and thermal management. Their comprehensive product lines include fuses, surge protective devices, disconnect switches, and specialized busbars, essential for ensuring system reliability and safety in demanding environments. Engineers value Mersen for their robust design, adherence to international standards, and long-term performance. Industrial Automation Co. stocks new and refurbished Mersen parts with quote-based pricing.

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5M+

Our 5M+ catalog features active breakers, drives, PLCs, relays, and operator interfaces.

24 Months

We offer 24 months warranty on selected brands

24h

Typical quote turnaround for hard-to-source and legacy replacement requests

OEM+

New, refurbished, and surplus paths surfaced clearly for procurement teams

Hard-to-find parts, sourced fast

Real value

Access millions of industrial automation components across PLCs, drives, HMIs, and more. We help you locate discontinued, surplus, and in-demand parts without delays.

Built for urgent procurement

RFQ ready

Submit RFQs for multiple part numbers and get fast, accurate quotes. Ideal for maintenance teams, resellers, and engineers working against downtime.

Verified parts you can rely on

Trusted data

Every listing is backed by supplier validation, condition transparency, and real availability—so you can purchase with confidence.

Global sourcing, local reliability

Worldwide trust.

We work with trusted suppliers worldwide to deliver quality automation parts quickly—reducing lead times and keeping your operations running.

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A50QS600-4 Mersen

A50QS600-4 Mersen

Specialty Fuses 500V 600A SEMICOND FUSE, A50QS600-4 Mersen

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A4J600 Mersen

A4J600 Mersen

Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 600A Blade Amp-Trap

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A4J30 Mersen

A4J30 Mersen

FUSE, CLASS J, CURRENT LIMITING, 600 VAC, 30 AMP

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A4J35 Mersen

A4J35 Mersen

Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 35A Ferrule Amp-Trap

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A4J100 Mersen

A4J100 Mersen

FUSE, CLASS J, FAST ACTING, 600V, 100 AMP

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A4BQ800 Mersen

A4BQ800 Mersen

FUSE,TIME-DELAY,CLASS L,200KA AC,100KA DC,600VAC/500VDC,800A,A4BQ,800 AMP,600V

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A4J70 Mersen

A4J70 Mersen

Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 70A Blade Amp-Trap

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A480R9R-1 Mersen

A480R9R-1 Mersen

Back-Up R-Rated Medium Voltage Fuse, 4800VAC, 9R, Mounting: Ferrule Visual Indicator Amp-Trap

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A4J400 Mersen

A4J400 Mersen

FUSE, FAST-ACTING, CLASS J, 200KA AC, 100KA DC, 600 VAC/300 VDC, 400 AMP

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A4J6 Mersen

A4J6 Mersen

FUSE, CLASS-J, FAST ACTING, 600V, 6-AMP

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