A4BT
Time-delay/Class L
When your heavier loads need protection 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, while also
providing superior current-limiting ability.
Features/Benefits:
•
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 delay
DC ratings
Uniform characteristics in all
ampere ratings
Applications:
•
•
•
•
•
Motors
Motor controllers
Transformers
Mains
Feeders
Ratings:
Volts
Amps
IR
: 600VAC
: 500VDC
: 200 to 2,000A
: 200kA I.R. AC
: 100kA I.R. DC
Approvals:
•
UL Listed to standard 248-10
•
CSA Certified to standard C22.2
•
Self-certified for DC per UL248
(601-2000)
No. 248.10 (601-2000A)
(601-2000A) File E2137
B12
A4BT
Time-delay/Class L
Catalog Numbers (amps)
A4BT200
A4BT250
A4BT300
A4BT350
A4BT400
A4BT450
A4BT500
A4BT600
A4BT601
A4BT650
A4BT700
A4BT750
A4BT800
A4BT900
A4BT1000
A4BT1100
A4BT1200
A4BT1400
A4BT1500
A4BT1600
A4BT1800
A4BT2000
Recommended Fuse Blocks
for Amp-Trap
®
Class L Fuses
Fuse
Ampere
Rating
100-800
801-1200
Catalog Number
3-Pole
P48F
P412F
Catalog number P48F is UL recognized
Catalog number P412F is self-certified
A variety of pole configurations and termination
provisions are available. Refer to Section H for details.
Dimensions
Ampere
Rating
200-600
601-800
801-1200
1201-1600
1601-2000
in
8-5/8
8-5/8
10-3/4
10-3/4
10-3/4
A
mm
219
219
273
273
273
in
2
2-1/2
2-1/2
3
3-1/2
B
mm
51
63
63
76
89
in
5/16
3/8
3/8
7/16
1/2
C
mm
8
9
9
11
13
in
1-5/8
2
2
2-3/8
2-3/4
D
mm
41
51
51
60
70
in
2-13/32
2-13/32
3-15/32
3-15/32
3-15/32
E
mm
61
61
88
88
88
Safety Note: Class L fuses are dimensioned for one-way interchangeability.
A Class L fuse of any lower ampere rating can be substituted for a given Class L fuse.
200-800A
801-2000A
For the most current product performance data visit
ep-us.mersen.com
and use catalog search.
B13
B
600V or Less
stm32/stm8
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