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Ferraz Shawmut Class L fuses are used to protect service entrance equipment, feeder circuits and circuit breakers - Ferraz Shawmut Class L A4BY fuses are 100% rated fuses and may be applied up to its ampere rating. A 4 second minimum time delay at 500% rating allows the ferraz Shawmut A4BY fuse link to pass normal current surges and to coordinate with ground fault relays.
Ferraz Shawmut Class L Fuses Incorporate the following innovations with a view to providing exceptional quality and service.
The fuse blade is stamped with the catalog part numbers, to ensure identification is permanent and remains legible.
Importantly, by having unique dimensions, it means they can only be replaced by fuses of the same classes.
While the glass melamine body, combined with plated terminals ensures superior reliability in even harsh environments.
Ferraz Shawmut Class L Fuses AB4Y - Features
Current limiting fuse links
4 second time delay
DC rating fuses
Ferraz Shawmut Class L Fuses AB4Y - Applications
Mains and feeders
Circuit breakers
Load centres
Panel boards
Switchboards
Metering centres
Ferraz Shawmut Class L Fuses AB4Y - Ratings
AC : 200 to 6000 amps 600VAC
DC : 200 to 2500 amps 300VDC
Ferraz Shawmut Class L Fuses AB4Y - Approvals
UL Listed to Standard 248-10 (601-6000A)
CSA Certified to Standard C22.2 No. 248.10 (601-6000A)
Ferraz Shawmut Certified for DC per UL248 (601-6000A)
Ferraz Shawmut Class L Fuse A4BY 200amp - A4BY200
Ferraz Shawmut Class L Fuse A4BY 250amp - A4BY250
Ferraz Shawmut Class L Fuse A4BY 300amp - A4BY300
Ferraz Shawmut Class L Fuse A4BY 350amp - A4BY350
Ferraz Shawmut Class L Fuse A4BY 400amp - A4BY400
Ferraz Shawmut Class L Fuse A4BY 450amp - A4BY450
Ferraz Shawmut Class L Fuse A4BY 500amp - A4BY500
Ferraz Shawmut Class L Fuse A4BY 600amp - A4BY600
Ferraz Shawmut Class L Fuse A4BY 601amp - A4BY601
Ferraz Shawmut Class L Fuse A4BY 650amp - A4BY650
Ferraz Shawmut Class L Fuse A4BY 700amp - A4BY700
Ferraz Shawmut Class L Fuse A4BY 750amp - A4BY750
Ferraz Shawmut Class L Fuse A4BY 800amp - A4BY800
Ferraz Shawmut Class L Fuse A4BY 801amp - A4BY801
Ferraz Shawmut Class L Fuse A4BY 900amp - A4BY900
Ferraz Shawmut Class L Fuse A4BY 1000amp - A4BY1000
Ferraz Shawmut Class L Fuse A4BY 1100amp - A4BY1100
Ferraz Shawmut Class L Fuse A4BY 1200amp - A4BY1200
Ferraz Shawmut Class L Fuse A4BY 1201amp - A4BY1201
Ferraz Shawmut Class L Fuse A4BY 1350amp - A4BY1350
Ferraz Shawmut Class L Fuse A4BY 1400amp - A4BY1400
Ferraz Shawmut Class L Fuse A4BY 1500amp - A4BY1500
Ferraz Shawmut Class L Fuse A4BY 1600amp - A4BY1600
Ferraz Shawmut Class L Fuse A4BY 1601amp - A4BY1601
Ferraz Shawmut Class L Fuse A4BY 1800amp - A4BY1800
Ferraz Shawmut Class L Fuse A4BY 2000amp - A4BY2000
Ferraz Shawmut Class L Fuse A4BY 2001amp - A4BY2001
Ferraz Shawmut Class L Fuse A4BY 2200amp - A4BY2200
Ferraz Shawmut Class L Fuse A4BY 2500amp - A4BY2500
Ferraz Shawmut Class L Fuse A4BY 3000amp - A4BY3000
Ferraz Shawmut Class L Fuse A4BY 3001amp - A4BY3001
Ferraz Shawmut Class L Fuse A4BY 3500amp - A4BY3500
Ferraz Shawmut Class L Fuse A4BY 4000amp - A4BY4000
Ferraz Shawmut Class L Fuse A4BY 4001amp - A4BY4001
Ferraz Shawmut Class L Fuse A4BY 4500amp - A4BY4500