Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse. littelfuse.com
44
High Voltage Fuses
Time-Current Characteristic Curves
10
100
1000
O
NDS
LC HEV FUSE
10A
15A
20A
30A
40A
0.01
0.1
1
1 10 100 1000
TIME IN SEC
O
CURRENT IN AMPERES
Specifications
Voltage Rating (10A, 15A, 20A, 30A): 450 VDC
Voltage Rating (40A): 425 VDC
Note: The 0HEV040.ZXBD is rated at 450 VDC
Interrupting Rating (10A, 15A, 20A, 30A): 10kA @ 450 VDC
Interrupting Rating (40A): 10kA @ 425 VDC
Operating Temperature Range: -40ºC to +125ºC
Ordering Information
Part Number Termination Package
Size
0HEVxxx.ZXC Cartridge 240
0HEVxxx.ZXISO Bolt Down (ISO) 240
0HEVxxx.ZXPY Blade 240
0HEVxxx.ZXBD Bolt Down (Axial) 240
0HEVxxx.ZXPCB PCB Mount 240
0HEVxxx.ZXPCBL PCB Mount (Long) 240
Time-Current Characteristics
% of
Rating
Opening Time
Min / Max (s)
10A
Opening Time
Min / Max (s)
15A, 20A, 30A
Opening Time
Min / Max (s)
40A
100 100 hrs / - 100 hrs / - 100 hrs / -
110 4 hrs / - 4 hrs / - -
135 100 / 3600 150 / 3600 150 / 3600
150 10 / 1000 10 / 1000 10 / 1000
200 0.5 / 100 0.5 / 100 0.5 / 100
300 0.1 / 15 0.1 / 15 0.1 / 15
500 0.05 / 1 0.05 / 1 0.05 / 1
Ratings
Part Number
Current
Rating
(A)
Color
Code
Typical Voltage
Drop at 70% IR
(mV)
Maximum Voltage
Drop Spec at 100% IR
(mV)
Typical Cold
Resistance
(mΩ)
Minimum
Melting I²t
(A2s)
0HEV010.xxx 10 114 300 12.8 255
0HEV015.xxx 15 96 200 7.9 133
0HEV020.xxx 20 79 200 5.0 268
0HEV030.xxx 30 67 200 2.7 993
0HEV040.xxx 40 69 200 2.0 1495
(Average Initial Measurements)
Temperature Rerating Curve
0HEV040.ZXBD
Low Current HEV Fuse
The LC HEV fuse is designed for protection of high-voltage accessory circuits in electric
and hybrid electric vehicles.
Low Current HEV Fuses
littelfuse.com
45
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse.
High Voltage Fuses
Low Current HEV Fuse
Dimensions
Dimensions in mm
ZXBD Bolt Down (Axial)
ZXPY Blade
ZXISO Bolt Down (ISO)
ZXPCB PCB Mount
ZXC Cartridge
ZXPCBL PCB Mount (Long)