EVS-500-200A
500VDC 200A high-voltage fuse for EV battery packs with 50kA breaking capacity and bolt-on mounting.
Product Overview
Description
The EVS-500-200A is a high-performance fuse designed for electric vehicle battery pack protection.
With 500VDC rating and 200A continuous current, this fuse provides reliable protection for medium-voltage EV systems.
The 50kA breaking capacity ensures safe interruption of severe short-circuit faults in battery systems.
Product Series
EVS
Primary Application
EV battery pack main protection
Key Features
- 500VDC rating for EV battery pack applications
- High breaking capacity 50kA for battery short-circuit protection
- Bolt-on mounting for secure electrical connection
- Wide operating temperature range -40°C to +125°C
- Ceramic body for high-voltage arc quenching
- UL and IEC recognized for global market access
Specifications
| Voltage Rating | 500V DC |
|---|---|
| Current Rating | 200A |
| Breaking Capacity | 50kA @ 500V DC |
| Size | Size 1 (51mm body) |
| Mounting | Bolt-on M8 terminals |
| Operating Temperature | -40°C to +125°C |
| Time-Current | Fast-acting |
| Standards | UL 248-13, IEC 60269-7 |
Applications
EV battery pack main protection
Battery and charging management
Battery module protection
Battery and charging management
DC/DC converter input protection
Power conversion and supply
PTC heater circuit protection
Electronic system design
Commercial EV power systems
Automotive and EV electronics
FAE Expert Insights
"In my 10 years supporting EV power system designs, I've found the EVS series to be a reliable choice for medium-voltage EV applications. The 500V rating is ideal for commercial EV and some passenger vehicle battery packs. I particularly appreciate the consistent breaking performance across temperature ranges, which is crucial for EV safety. The bolt-on terminals provide excellent electrical contact and mechanical stability in high-vibration automotive environments. For sizing, I typically recommend 1.25x to 1.5x the maximum continuous current, considering both steady-state and peak loads during acceleration."
Reliable 500V protection with excellent breaking capacity for EV battery systems
— Michael Zhang, BeiLuo
Frequently Asked Questions
What is the typical voltage drop across this fuse at rated current?
The voltage drop across the EVS-500-200A at 200A rated current is typically less than 100mV. This low voltage drop minimizes power loss and heating in the fuse. At lower currents, the voltage drop is proportionally lower. The low resistance design helps maintain system efficiency in EV applications where every watt counts for range.
Consider voltage drop when designing high-current EV systems. Contact our FAE for detailed resistance specifications.
How does this fuse perform under pre-charge conditions?
The EVS-500-200A is designed to handle pre-charge currents typical in EV systems. During pre-charge, the fuse sees inrush current limited by the pre-charge resistor, typically 5-10A for a few seconds. The fuse's time-current characteristic allows this temporary overload without opening. For systems without pre-charge circuits, the fuse can handle capacitor inrush currents up to 10x rated current for brief periods (<10ms).
Implement proper pre-charge circuits to limit inrush current. The fuse can handle typical pre-charge currents without issues.