Littelfuse MEGA 32 LT User Manual
Bolt-down Fuses
MEGA® LOW TEMPERATURE FUSE RATED 32V
Specifications
Interrupting Rating: 2000A @ 32 VDC
Voltage Rating: 32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing: 35% GF Nylon
Terminals: Copper (Silver plated copper available)
M8 bolts available
Mounting Torque: 12-18 Nm M8
Ordering Information
Part Number Package Size Plating Rating
0298125.ZXBLT 500 Ag 125
0298xxx.ZXEH-LT 500 none 150 - 275
Description
The MEGA® Fuse is designed for high current circuit protection up
to 275A with “Diffusion Pill Technology.” The MEGA® Fuse also
provides time delay characteristics. Designed and patented by
Littelfuse, the MEGA® Fuse is ideal for battery and alternator
protection application and other heav y gauge cables requiring
ultra-high current protection.
Time-Current Characteristics
Opening Time Min / Max (s)
% of Rating
150-275
100 4 hrs / –
135 120 s / 1800 s
200 1 s / 150 s
350 0.300 s / 5 s
600 0.100 s / 1 s
Ratings
Part Number Current Rating Font Color Typ. Voltage Drop Cold Resistance I2t
0298125.ZXBLT 125 A 67 mV 0.330 mΩ 57000 A²s
0298150.ZXEH-LT 150 A
0298175.ZXEH-LT 175 A
0298200.ZXEH-LT 200 A
0298225.ZXEH-LT 225 A
0298250.ZXEH-LT 250 A
0298275.ZXEH-LT 275 A
62 mV 0.258 mΩ 59000 A²s
65 mV 0.232 mΩ 123000 A²s
61 mV 0.214 mΩ 140000 A²s
57 mV 0.177 mΩ 317000 A²s
54 mV 0.144 mΩ 637000 A²s
53 mV 0.122 mΩ 800000 A²s
Last figure of article no. = packaging code
Corresponding holder see Section “Fuse Holders.
www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog
A
Bolt-down Fuses
125
150
225
250
275
MEGA® LOW TEMPERATURE FUSE RATED 32V
Dimensions
Dimensions in mm
Temperature Rerating Curve
1.83 (.072 ) 300-500
Time-Current Characteristic Curves
1000
100
10
TIME IN SECONDS
1
0.1
100 1000 10000
CURREN T IN A MPERES
175
200
www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog
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