DC Disconnect Switch 2000V 315A/500A

The BENY BYSS MOD Series Motorized DC Disconnect Switch is engineered for battery energy storage systems (BESS) and other high-voltage DC applications requiring safe and reliable circuit isolation. Designed for DC 2000V with current ratings up to 315A and 500A, it combines motorized remote operation with manual switching, enabling efficient maintenance, emergency isolation, and intelligent system control.

Built for modern Energy Storage Systems (ESS), the switch delivers fast DC load disconnection, stable arc extinguishing performance, and dependable electrical isolation, helping improve system safety and operational reliability for PCS, battery cabinets, DC distribution systems, and utility-scale energy storage projects.

1 Brand

2 Product Model

3 Electrical Ratings

4 Standards

5 Electrical Symbol

6 Automatic Mode

7 Manual Mode

8 Padlock Position

9 Padlock Hole

10 Manual Operating Port

11 ON/OFF Position Indicator

The BYSS MOD Series is suitable for a wide range of high-voltage DC power systems, including:

• Battery Energy Storage Systems (BESS)
• Commercial & Industrial Energy Storage Systems (C&I ESS)
• Utility-Scale Energy Storage Projects
• Battery Cabinets and Battery Containers
• Power Conversion Systems (PCS)
• DC Distribution Panels
• Renewable Energy Storage Systems
• Microgrid and Hybrid Power Systems

Reliable DC Isolation up to 2000V

Designed specifically for high-voltage DC applications, the switch provides safe electrical isolation for circuits up to DC 2000V, helping protect equipment during maintenance, emergency shutdowns, and system servicing.

Intelligent Remote Operation

The integrated motorized actuator supports DC 24V remote control, allowing operators to perform switching through EMS, PCS, PLC, or SCADA systems. This improves automation while reducing on-site maintenance requirements.

Multiple Operating Modes

Three operating modes provide greater operational flexibility:

• Motorized Operation for remote switching
• Manual Operation for local maintenance
• Lockout Function to prevent unauthorized operation during servicing

This design supports both routine operation and lockout/tagout (LOTO) safety procedures.

Enhanced Operational Safety

The switch incorporates advanced DC switching technology to ensure stable performance under demanding operating conditions, featuring:

• Rapid DC arc extinguishing
• Low contact temperature rise
• High impulse withstand capability
• Clear ON/OFF position indication
• Reliable long-term mechanical performance 

These features help improve system safety while extending equipment service life.

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