A4BT / Class L / 10-Second Time Delay

When your heavier loads need protection, Ferraz A4BT fuses won't let you down - The high interrupting rating of A4BT current limiting fuses is ideally suited for protecting mains, feeders, and general circuits. The 10-second time delay at 500% of fuse rating is ideal for large motors and other loads with a high inrush. A4BT fuses are suitable for DC applications up to 500VDC. An A4BT fuse can be applied to normal loads up to its full ampere rating to allow 100% rating of equipment.

Product Data

[342 KB]

Brochure

[Not Available]

UL File Card

CSA File Card

Features

Unique dimensions prevent replacement by other fuse classes.
Blade-stamped catalog numbers for permanent identification
Glass melamine body and plated terminals provide superior reliability in harsh environments

Highlights

Current-limiting
Full 10-second time delay
DC ratings
Uniform characteristics in all ampere ratings

Ratings

AC: 600VAC, 200kA I.R.
AC: 500VDC, 100kA I.R.
(Ferraz Shawmut Certified)

Approvals

UL Listed to Standard 248-10
CSA Certified to Standard C22.2 No. 248.10
DC Tested to UL 198L limits (Ferraz Shawmut Certified)
Some ratings RoHS Compliant

Applications

Motors
Motor Controllers
Transformers
Mains
Feeders

Ferraz A4BT Series Fuse Selection

AMPERE RATING	CATALOG NUMBER	AMPERE RATING	CATALOG NUMBER	AMPERE RATING	CATALOG NUMBER	AMPERE RATING	CATALOG NUMBER
200	A4BT200	500	A4BT500	800	A4BT800	1500	A4BT1500
250	A4BT250	600	A4BT600	900	A4BT900	1600	A4BT1600
300	A4BT300	601	A4BT601	1000	A4BT1000	1800	A4BT1800
350	A4BT350	650	A4BT650	1100	A4BT1100	2000	A4BT2000
400	A4BT400	700	A4BT700	1200	A4BT1200
450	A4BT450	750	A4BT750	1400	A4BT1400