Advantages of Guchen MINI MSD
1. Enhanced Safety
Manual disconnection of HV circuit protects personnel during maintenance or emergency conditions.
Fuse-integrated variants provide short-circuit and overcurrent protection, acting as a primary HV circuit breaker.
2. Flexible Design for System Integration
Three installation options—Flange Mount, Front Mount, and Rear Mount—accommodate different packaging needs, from battery enclosures to vehicle chassis.
Optional HVIL contacts (1 or 2) provide feedback to VCU for interlock and safety logic integration.
3. Customizable Fuse Ratings
Available in multiple current ratings up to 400A.
Supports industry-recognized Adler and Bussmann fuses, ensuring global availability and replacement convenience.
4. Robust Environmental Protection
Designed with IP67 & IP6K9K sealing, ideal for dusty, wet, and high-pressure washdown environments typical of automotive and commercial vehicle applications.
5. Reliable Thermal Performance
Suitable for extreme climates: -40°C to +70°C operating range.
6. Long Service Life
Supports 50+ mating cycles, ensuring durability in service and maintenance scenarios.
Why Choose Guchen MINI MSD?
Compact Size, excellent for tight EV battery packs
Scalable Performance up to 1500VDC and 400A
OEM-Ready Design, with full compliance to automotive-grade safety requirements
Wide compatibility with busbars, fuses, and HVIL systems
Fast lead time and custom branding options for volume customers
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Electric Vehicles (BEV, HEV, PHEV); Battery Pack Power Output Disconnect Switch; High-Voltage Distribution Units (PDU/DCB)
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Energy Storage Systems (ESS); Emergency Shutdown Mechanisms during accidents or servicing
Key Features & Configurations
| Category |
Options / Specs |
| Installation |
Flange Mount / Front Mount / Rear Mount |
| Rated Voltage (Without Fuse) |
Max. 1500VDC |
| Rated Current (Without Fuse) |
170A |
| Rated Current (With Fuse) |
Up to 400A;
80A / 100A / 125A / 160A / 200A / 250A / 315A / 350A / 400A |
| Supported Fuse Brands |
Adler / Bussmann |
| Connection Type |
Without Fuse: Busbar Interface |
| HVIL Options |
Without HVIL / 1 HVIL / 2 HVIL |
| IP Protection |
IP67 / IP6K9K (dust-tight, water jet & high-pressure resistant) |
| Operating Temperature |
-40℃ to +70℃ |
| Storage Temperature |
-40℃ to +85℃ |
| Mating Cycles |
> 50 Times |
| Application |
High-voltage circuit repair switch, manual circuit breaker, emergency disconnect |
| Target Markets |
Electric Vehicles / Battery Packs / Electric Drive / Energy Storage Systems (ESS) / PDU |
Mounting Options Explained
| Mounting Type |
Description |
Typical Use |
| Flange Mount |
Side screw-mounted via flange; easiest for maintenance |
Battery enclosure sidewalls, PDUs |
| Front Mount |
Inserted from the outside, fastened from the rear; neat appearance |
Operator-facing panels, clean layout designs |
| Rear Mount |
Inserted from the inside, fastened from the rear; visible handle only |
Compact housings, protected service areas |
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