P220951 Ferraz Shawmut - Fuse

P220951 Description

Mersen P220951 is a DC high speed fuse rated at 750 V and 450 A. Its job is to clear faults fast enough to save expensive semiconductors in drives, UPS units and DC supplies.

USComponent has been supplying power semiconductors since 2001, including discontinued and hard-to-find part numbers. Send us an RFQ for the P220951 and we will reply with price, condition and lead time. Please check the manufacturer's datasheet to confirm ratings, package and pin-out before you order.

Summary of Features

Target Applications

Ferraz Shawmut P220951 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) P220951 is a Protistor size 122 gR square body high speed fuse for DC protection, 450 A, 750 VDC (IEC), blade contacts (EF), with striker (catalog number D122GD75V450EF). Source: Mersen Protistor size 122 gR 750 VDC datasheet (DS-PFSA12GD2-06-1224-EN).

Parameter	Value
Catalog number	D122GD75V450EF
Item number	P220951
Rated voltage	750 VDC (IEC 60269-4)
Rated current	450 A
Characteristic	gR, size 122
Terminals	blade contacts (EF)
Breaking capacity	100 kA DC
Pre-arcing I²t	63.5 kA²s
Max. I²t at 900 V, L/R = 40 ms, Ip = 50 In	800 kA²s
Max. I²t at 900 V, L/R = 40 ms, Ip = 10 In	4000 kA²s
Power dissipation at In / 0.8 In	90 W / 49 W
Indication	Striker; microswitch options MC 3E, MCR 3E, MC2R 3E
Weight	1.3 kg

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