A30QS4-1 Ferraz Shawmut - Fuse

A30QS4-1 Description

Rated at 300 V and 4 A, the Mersen A30QS4-1 is a high speed fuse. Its job is to clear faults fast enough to save expensive semiconductors in drives, UPS units and DC supplies.

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Summary of Features

Target Applications

Ferraz Shawmut A30QS4-1 is used for protection of power semiconductors (diodes, phase control SCRs and other devices) in heavy duty rectifiers, power supplies and DC equipment of 300 V or less.

Key Specifications

Mersen (Ferraz Shawmut) A30QS4-1 is an Amp-Trap Form 101 A30QS high speed fuse, 4 A, 300 VAC/DC, ferrule mounting. Source: Mersen A30QS Amp-Trap Form 101 high speed fuses datasheet (HS 10-11).

Parameter	Value
Series	A30QS Amp-Trap Form 101 high speed fuse
Rated current	4 A
Rated voltage	300 VAC / 300 VDC
Interrupting rating	200 kA AC / 100 kA DC (L/R 10 ms)
Mounting type	1: ferrule
Characteristics	Fast acting, current limiting, low I²t, controlled arc voltage, superior DC capability
Approvals	UL recognition in the datasheet covers 35-4500 A (not this rating)
Main dimensions (see datasheet figure)	A 2.00 in (51 mm), B 0.56 in (14 mm)

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