C-MSD Non-fused Manual Service Disconnect

The C-MSD (Compact Manual Service Disconnect) is a safety isolation device specifically designed for high-voltage systems. It is typically used to manually disconnect high-voltage circuits, ensuring operator safety during service, maintenance, or emergency power-off situations. Its compact design, reliable performance, and clear safety functions make it an indispensable component in modern electrical systems, particularly in electric vehicles (EVs), energy storage systems (ESS), and industrial equipment.

Product Characteristics:

Featuring a unique busbar heat dissipation structure, it effectively extends the service life of the fuse. The two-stage unlocking mechanism provides sufficient system response time.

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Model Description:

Product Ordering Information

No.	Ordering P/N	Product Description	Fuse Protector Size	Rated Current
1	C-MSDP2	C-MSD Plug with Copper Busbar/ 2 HVIL Pins	None/ Copper Busbar	380A Max
2	C-MSDSR0	C-MSD Rear-Mount Receptacle/ No HVIL	Rear Panel Mount	380A Max
3	C-MSDSR1	C-MSD Rear-Mount Receptacle/ 1 HVIL Pin	Rear Panel Mount	380A Max
4	C-MSDSR2	C-MSD Rear-Mount Receptacle/ 2 HVIL Pins	Rear Panel Mount	380A Max

Outline Dimensions:

C-MSD Non-Fused Plug Outline Drawing

C-MSD Non-Fused Receptacle Mounting Outline Drawing

Recommended Panel Cutout

Remarks:

1. Receptacle interlocks are supplied with a wire harness (optional quantities available); the plug is equipped with two high-voltage interlock (HVIL) pins.

2. Use M5 combination bolts for panel mounting. Tightening torque: 4.0–4.3 N·m. Recommended panel thickness: 2–4 mm; Flatness: < 0.1 mm.

3. Use M8 combination nuts for busbar connection. Tightening torque: 14–15 N·m. Fasteners must be tightened using a power driver featuring an instantaneous torque cut-off function (providing an immediate stop and an audible "click" at the set torque). The use of non-torque-controlled power tools is prohibited. If a compliant power driver is unavailable, a calibrated manual torque wrench is an acceptable alternative.

Production Process