Mersen D121GC75V200EF Semiconductor Fuse, 750 VDC, 200 A
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Mersen D121GC75V200EF is a Protistor® size 121 gR square body high-speed semiconductor fuse-link for DC protection. Identified with item number A086710, this EF type fuse uses blade contacts with striker and is rated 750 VDC and 200 A for semiconductor protection applications.
| Product ID / MPN | D121GC75V200EF |
| Secondary ID | A086710 |
| Brand / Series / Category | Mersen Protistor® size 121 gR semiconductor protection fuse |
| Main Electrical Ratings | 750 VDC, 200 A |
| Speed / Characteristic | gR |
| Rated Breaking Capacity DC | 100 kA |
| Pre-arcing I²t | 11.85 kA²s |
| Max. I²t | 150 kA²s at 900 V, L/R=40 ms, IP=50In; 755 kA²s at 900 V, L/R=40 ms, IP=10In |
| Power Dissipation | 37.5 W at In; 20.5 W at 0.8 In |
| Mounting / Terminal / Connection | EF type, blade contacts with striker |
| Weight | 1.02 kg |
| Standards / Certifications | IEC 60269-4 Compliance |
Typical applications include protection of inverters, motor drives, UPS systems, railway power and auxiliary circuits, and similar equipment operating at 750 VDC or less.
Apexon Supply supports B2B sourcing and replacement review for Mersen D121GC75V200EF fuses by helping procurement teams compare verified ratings, fuse size, terminal style, and application requirements before replacement.
Send the MPN, item number A086710, required quantity, and application details to request RFQ support and technical alignment review.
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