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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PC73UD90V13CTF Mersen

PC73UD90V13CTF Mersen

Square Body High-Speed Fuse Protistor Size 73 aR 900VAC IEC 1000VAC UL 1250A With Striker Flush ends metric threads

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PC31UD69V250TF Mersen

PC31UD69V250TF Mersen

fuse; 250A; 690VAC; aR; 50.6x51x56.5mm Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 250A Wi...

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P300186 Mersen - PC32UD69V400D1A

P300186 Mersen - PC32UD69V400D1A

FUSE, SQUARE BODY, INDICATING, 400 AMP, 690 VAC, 75 W, 200 KA, SIZE 32, AR CLASS, W/ STRIKER DIN 110 BLADES, BOLTED M...

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P320587 Mersen - NH3UD69V500PV

P320587 Mersen - NH3UD69V500PV

Square Body High-Speed Fuse Protistor NH Size 3 aR 690VAC IEC 700VAC UL 500A With Double indicator Plain Blades

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P243C Mersen

P243C Mersen

Fuse Block 1000VAC 1000VDC 200A 1-Pole Stud center to center: 3.62 inch

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P090564 Mersen

P090564 Mersen

Mersen Cartridge Fuse, 315mA, Ø 6.3 x 32mm, F, 250V ac

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P090518 Mersen

P090518 Mersen

Mersen cartridge fuse, 2A, diameter 5 x 20mm, 5SF, 250V AC

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OTS100 Mersen

OTS100 Mersen

Fuse OTS - Class K5 - Fast-Acting 600VAC 300VDC 100A Blade Amp-Trap

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OT30 Mersen

OT30 Mersen

Fuse OT - Class K5 - Fast-Acting 250VAC 250VDC 30A Ferrule Amp-Trap

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