Manual Rotary 300A Battery Master Disconnect Switch

This heavy-duty manual rotary battery master disconnect switch is engineered for ISUZU, SHACMAN, and HOWO commercial trucks. It provides complete electrical isolation by cutting off the battery from the vehicle's electrical system, preventing parasitic battery drain during storage, enhancing vehicle safety during maintenance, and serving as an effective anti-theft measure.

Key Features

• 300A Continuous Rating: Handles high-current loads in heavy-duty truck electrical systems with 1000A surge capacity for engine starting
• Solid Brass Terminals: Premium brass stud terminals with M10 thread provide superior conductivity and corrosion resistance compared to standard copper
• Bakelite Housing: High-temperature resistant bakelite body ensures electrical insulation and mechanical durability in harsh engine bay environments
• Dual Voltage Compatible: Operates reliably on both 12V and 24V truck electrical systems without modification
• Removable Rotary Knob: Detachable red rotary knob adds anti-theft protection when removed, preventing unauthorized vehicle operation
• Panel Mount Design: Threaded mounting stem with lock nut for secure panel or bracket installation on truck dashboard or battery compartment
• IP54 Protection: Dust and splash resistant design suitable for engine bay and exterior mounting locations

Product Specifications

Compatible Truck Models

• ISUZU: NKR, NPR, NQR, FSR, FTR, FVR, CXZ, 700P
• SHACMAN: F3000, X3000, M3000, L3000
• HOWO: A7, T7H, T5G, 371
• Universal: Compatible with most 12V/24V heavy-duty trucks, buses, and construction machinery

Applications

• Fleet vehicle battery management and storage protection
• Maintenance safety isolation for engine bay work
• Anti-theft security for parked commercial vehicles
• Marine and RV auxiliary battery disconnect
• Construction and mining equipment electrical isolation

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