Littelfuse MEGA 32V User Manual
MEGA® FUSE RATED 32V
Bolt-down Fuses
Specifications
Interrupting Rating: 2000A @ 32 VDC
Voltage Rating: 32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing: PPA (33%/35% GF)
Terminals: Copper (Silver plated copper available)
M6 or M8 bolts available
Mounting Torque: 8-14 Nm M6
12-18 Nm M8
Complies with: ISO 8820-5
Ordering Information
Part Number Package Size Plating Bolt Size Rating
0298xxx.ZXH 500 none M8 300 - 500
0298xxx.ZXEH 500 none M8 80 - 250
0298xxx.ZXB 500 Ag M8 40 - 250
0298xxx.ZXA 500 none M6 80 - 500
Time-Current Characteristics
Description
The MEGA® Fuse is designed for high current circuit protection up
to 500A 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 heavy gauge cables requiring
ultra-high current protection.
% of Rating
75 – / – 14,400 s / –
100 14,400 s / – – / –
135 120 s / 1800 s – / –
200 1 s / 15 s 1 s / 15 s
350 0.300 s / 5 s 0.500 s / 5 s
600 0.100 s / 1 s – / –
Opening Time Min / Max (s)
40-250 300-500
Ratings
Part Number Current Rating Font Color Typ. Voltage Drop Cold Resistance I2t
0298040._
0298060._
0298080._ 80 A
0298100._ 100 A
0298125._ 125 A
0298150._ 150 A
0298175._ 175 A
0298200._ 200 A
0298225._ 225 A
0298250._ 250 A
0298300._
0298350._
0298400._
0298450._
0298500._
Note 1: Not mentioned in ISO standards Note 2: Short Circuit Protector only
** Voltage Drop measurements for short circuit protectors taken at 75% of rated current.
1
1
2
2
2
2
2
40 A – 132 mV 2.510 mΩ –
60 A – 119 mV 1.504 mΩ –
87 mV 0.720 mΩ –
87 mV 0.562 mΩ 31100 A²s
80 mV 0.423 mΩ 57800 A²s
92 mV 0.352 mΩ 100000 A²s
86 mV 0.294 mΩ 168000 A²s
83 mV 0.257 mΩ 204000 A²s
82 mV 0.222 mΩ 257000 A²s
82 mV 0.201 mΩ 389000 A²s
300 A 74 mV** 0.167 mΩ –
350 A 68 mV** 0.138 mΩ –
400 A 64 mV** 0.126 mΩ –
450 A 60 mV** 0.112 mΩ –
500 A 58 mV** 0.092 mΩ –
www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog
A
Bolt-down Fuses
MEGA® FUSE RATED 32V
Dimensions
Dimensions in mm
Temperature Rerating Curve
Time-Current Characteristic Curves
1.83 (.072 ) 300-500
www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog
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