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
46
High Voltage Fuses
Specifications
Voltage Rating (50A): 275 VAC
Interrupting Rating (50A): 10,000A @ 275 VAC
Operating Temperature Range: -40˚C to +125˚C
Low Current High Voltage 50A Fuse
The LC HEV fuse is designed for protection of high-voltage accessory circuits in electric
and hybrid electric vehicles.
Low Current
High Voltage 50A Fuses
Ordering Information
Part Number Termination Package
Size
0HEVxxx.ZXC2 Cartridge 240
0HEVxxx.ZXISO2 Bolt Down (ISO) 240
0HEVxxx.ZXP2Y Blade 240
0HEVxxx.ZXPCB2 PCB Mount 240
0HEVxxx.ZXPCBL2 PCB Mount (Long) 240
0HEVxxx.ZXBD2 Bolt Down (Axial) 240
Time-Current Characteristics
% of Rating Opening Time Min / Max (s)
100 100 hrs / -
110 4 hrs / -
135 -
150 -
200 0.5 / 100
300 0.1 / 15
500 0.05 / 1
Ratings
Part
Number
Current
Rating
(A)
Voltage
Rating
(VAC)
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)
0HEV050.XXX 50 275 57 200 1.2 1495
Time-Current Characteristic Curves
10
100
1000
ONDS
275 VAC LC HEV FUSE
50A
Littelfuse, Inc. May 2012
0.01
0.1
1
0001001011
TIME IN SEC
CURRENT IN AMPERES
5040
Temperature Rerating Curve
littelfuse.com
47
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 High Voltage 50A Fuse
Dimensions
Dimensions in mm
ZXBD2 Bolt Down (Axial)
ZXP2Y Blade
ZXISO2 Bolt Down (ISO)
ZXPCB2 PCB Mount ZXPCBL2 PCB Mount (Long)
ZXC2 Cartridge
