Ferraz Shawmut: Circuit Protection Products


	Product Data [365 KB]

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General Purpose Fuses
UL Power Fuses
Class L - Time Delay - A4BQ

PUT THE HIGHEST CURRENT-LIMITATION... AT YOUR SERVICE. Amp-trap® 2000 A4BQ fuses are 20% more current limiting than any other Class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let-thru current. A4BQ's built-in, 4-second time delay characteristic (at 500% of rated current) accommodates harmless inrush currents with no nuisance opening.

Features

Fastest operation under short circuit conditions: Let-thru currents are typically 20% lower, with a corresponding let-thru energy (clearing I²t) up to 40% lower than the next fastest Class L fuse
Time delay for high inrush loads such as motors and transformers, without nuisance opening
300kA interrupting rating - self-certified, UL witnessed tests
Most current limiting for lowest peak let-thru current; even at fault currents up to 300kA
Pure silver links ensure lowest let-thru current and longer fuse life
Easy 2-to-1 selectivity for prevention of nuisance shutdowns and "blackouts"
Rejection-style design prevents replacement errors
High-visibility orange label gives instant recognition
Reduced inventory because A4BQ can replace all older types of Class L fuses now in service
Metal®mbossed date and catalog number for traceability and lasting identification
Fiberglass body provides dimensional stability in harsh industrial settings
High®rade silica filler ensures fast arc quenching

Applications

Mains, Feeders
Large Motors
Lighting, Heating & General Loads
Circuit Breaker Back-up
DC Rated: UPS DC Links, Battery Disconnects, Other DC Applications

DXF Drawings

A4BQ100	PDF: A4BQ(100-600).pdf
A4BQ100-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ1000	DXF: A4BQ(1000-1200).dxf	PDF: A4BQ(1000-1200).pdf
A4BQ1000-TA	PDF: A4BQ(801-1200)-TA.pdf
A4BQ1200	DXF: A4BQ(1000-1200).dxf	PDF: A4BQ(1000-1200).pdf
A4BQ1200-TA	PDF: A4BQ(801-1200)-TA.pdf
A4BQ1350	PDF: A4BQ1600.pdf
A4BQ1350-TA	(Not online currently)
A4BQ1400	PDF: A4BQ1600.pdf
A4BQ1400-TA	(Not online currently)
A4BQ150	PDF: A4BQ(100-600).pdf
A4BQ150-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ1500	PDF: A4BQ1600.pdf
A4BQ1500-TA	(Not online currently)
A4BQ1600	PDF: A4BQ1600.pdf
A4BQ1600-TA	(Not online currently)
A4BQ1800	PDF: A4BQ2000.pdf
A4BQ1800-TA	PDF: A4BQ(1601-2000)-TA.pdf
A4BQ1800-TA	DXF: A4BQ2000-TA.dxf
A4BQ1900	PDF: A4BQ2000.pdf
A4BQ200	PDF: A4BQ(100-600).pdf
A4BQ200-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ2000	PDF: A4BQ2000.pdf
A4BQ2000-TA	PDF: A4BQ(1601-2000)-TA.pdf
A4BQ2000-TA	DXF: A4BQ2000-TA.dxf
A4BQ2001-TA	PDF: A4BQ(2001-2500)-TA.pdf
A4BQ2200-TA	PDF: A4BQ(2001-2500)-TA.pdf
A4BQ250	PDF: A4BQ(100-600).pdf
A4BQ250-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ2500	PDF: A4BQ2500.pdf
A4BQ2500-TA	PDF: A4BQ(2001-2500)-TA.pdf
A4BQ2501	PDF: A4BQ3000.pdf
A4BQ300	PDF: A4BQ(100-600).pdf
A4BQ300-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ3000	PDF: A4BQ3000.pdf
A4BQ3000-TA	PDF: A4BQ(2501-3000)-TA.pdf
A4BQ350	PDF: A4BQ(100-600).pdf
A4BQ350-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ3500	PDF: A4BQ4000.pdf
A4BQ3500-TA	PDF: A4BQ(3001-4000)-TA.pdf
A4BQ3800	PDF: A4BQ4000.pdf
A4BQ3800-TA	PDF: A4BQ(3001-4000)-TA.pdf
A4BQ400	PDF: A4BQ(100-600).pdf
A4BQ400-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ4000	PDF: A4BQ4000.pdf
A4BQ4000-TA	PDF: A4BQ(3001-4000)-TA.pdf
A4BQ450	PDF: A4BQ(100-600).pdf
A4BQ450-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ500	PDF: A4BQ(100-600).pdf
A4BQ500-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ5000	PDF: A4BQ5000.pdf
A4BQ5000-TA	(Not online currently)
A4BQ600	PDF: A4BQ(100-600).pdf
A4BQ600-TA	PDF: A4BQ(100-600)TA.pdf
A4BQ6000	PDF: A4BQ6000.pdf
A4BQ6000-TA	PDF: A4BQ(5001-6000)-TA.pdf
A4BQ601	DXF: A4BQ800.dxf	PDF: A4BQ800.pdf
A4BQ601-TA	PDF: A4BQ(601-800)-TA.pdf
A4BQ650	DXF: A4BQ800.dxf	PDF: A4BQ800.pdf
A4BQ650-TA	PDF: A4BQ(601-800)-TA.pdf
A4BQ700	DXF: A4BQ800.dxf	PDF: A4BQ800.pdf
A4BQ700-TA	PDF: A4BQ(601-800)-TA.pdf
A4BQ750	DXF: A4BQ800.dxf	PDF: A4BQ800.pdf
A4BQ750-TA	PDF: A4BQ(601-800)-TA.pdf
A4BQ800	DXF: A4BQ800.dxf	PDF: A4BQ800.pdf
A4BQ800-TA	PDF: A4BQ(601-800)-TA.pdf
A4BQ900-TA	PDF: A4BQ(801-1200)-TA.pdf