Mingjiada Electronics offers long-term stock availability of automotive connectors MINI-MSDM250 — Amphenol 250 A MSD plug, hailed as the ‘quick-release safety switch’ for high-voltage batteries.
MINI-MSDM250 Product Description
The MINI-MSDM250 is an Amphenol miniature manual service disconnect (Mini MSD) plug specifically designed for the high-voltage battery systems of plug-in hybrid electric vehicles (PHEVs) and electric vehicles (EVs). The MINI-MSDM250 integrates a 250A fast-acting fuse, features an orange housing (compliant with high-voltage connector industry standards), and incorporates a high-voltage interlocking circuit (HVIL) to ensure safe disconnection of high-voltage circuits under power conditions. It is widely applied in new energy vehicles, energy storage cabinets, and high-voltage distribution units.
MINI-MSDM250 Core Features
250A fuse integrated design: pre-installed at the factory, no additional selection required
High-voltage platform support: 1000V DC / 690V AC, MINI-MSDM250 is suitable for 800V fast-charging systems
Two-step unlocking mechanism: press-and-rotate operation, insertion/removal force ≤50N, preventing accidental operation
High-voltage interlock (HVIL): signal disconnects before power disconnects, eliminating the risk of arcing
Wide temperature operating range: -40°C to +125°C, the MINI-MSDM250 adapts to harsh environments
High protection rating: IP67 & IP6K9K (mated state)
Long mechanical life: ≥50 insertion/removal cycles, UL94-V0 flame-retardant
Technical Specifications
Model: MINI-MSDM250
Rated voltage: 1000V DC / 690V AC
Rated current: 250A (continuous)
Fuse specification: 250A gR fast-acting
Contact resistance: ≤0.25 mΩ
Withstand Voltage Test: 3500V AC / 1 minute
Protection Rating: IP67 & IP6K9K (mated state)
Operating Temperature: -40°C to +125°C
Weight: ≈270g (including fuse)
MINI-MSDM250 Typical Applications
PHEV/EV High-Voltage Battery Pack Maintenance Port: As an MSD maintenance switch, quickly disconnects the high-voltage circuit
Electric buses, heavy-duty trucks 800V platform PDU: Integrated into the high-voltage distribution unit
Energy storage cabinets, battery swapping stations DC bus safety disconnect point: Cuts off the high-voltage circuit in emergency situations
Fuel cell system high-voltage emergency switch: Ensures maintenance safety
Mingjiada Electronics Contact Information
Contact Person: Mr. Chen
Phone: +86 13410018555
Email: sales@hkmjd.com
For samples or bulk quotes, please contact Mingjiada Electronics at any time. MINI-MSDM250 is in stock and available for same-day shipping, helping your project stay ahead of the curve.
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