D122GC75V250EF Ferraz Shawmut - Fuse

D122GC75V250EF Description

Mersen D122GC75V250EF is a DC high speed fuse rated at 750 V and 250 A. It protects power semiconductors such as diodes, thyristors and IGBTs from short-circuit damage in drives, rectifiers and UPS systems.

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Summary of Features

Target Applications

Ferraz Shawmut D122GC75V250EF is used for DC protection of inverters, motor drives, UPS systems, railway traction power and auxiliary circuits and similar equipment of 750 VDC or less.

Key Specifications

Mersen (Ferraz Shawmut) D122GC75V250EF is a Protistor size 122 gR square body high speed fuse for DC protection, 250 A, 750 VDC (IEC), blade contacts (EF), with striker (item number A087331). Source: Mersen Protistor size 122 gR 750 VDC datasheet (DS-PFSA12GD2-06-1224-EN).

Parameter	Value
Catalog number	D122GC75V250EF
Item number	A087331
Rated voltage	750 VDC (IEC 60269-4)
Rated current	250 A
Characteristic	gR, size 122
Terminals	blade contacts (EF)
Breaking capacity	100 kA DC
Pre-arcing I²t	18.05 kA²s
Max. I²t at 900 V, L/R = 40 ms, Ip = 50 In	250 kA²s
Max. I²t at 900 V, L/R = 40 ms, Ip = 10 In	1250 kA²s
Power dissipation at In / 0.8 In	46.7 W / 25.5 W
Indication	Striker; microswitch options MC 3E, MCR 3E, MC2R 3E
Weight	1.3 kg

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