Heavy Duty Top Post Battery Disconnect Switch 250A DC 12V-48V On Off Kill Switch With Anti Theft Removable Knob For 15mm To 17mm Negative Terminal Car RV Boat Truck ATV

Heavy Duty Top Post Battery Disconnect Switch 1 pc, 12-48V
✔️ 250A DC top-post disconnect, removable knob; fits 15-17mm

This heavy-duty switch is designed for automotive, RV, boat, truck and ATV battery systems. Install on top-post battery setups to quickly cut power and prevent drain when engines are idle or stored.

✅ 250 A continuous rating; 400 A intermittent; 700 A CA/CCA
✅ Compatible with 12-48 V systems via M8 stud
✅ Negative battery post fit: 15-17 mm (0.59-0.67 in)
✅ ON/OFF two-position operation
✅ Brass castings with stainless steel screw studs for corrosion resistance
✅ Flame-retardant PA66 base for insulation and safety

💡 What is a battery disconnect switch used for in 12-48V automotive and marine setups?

It’s handy for protecting battery life and security when parking or storing a vehicle or boat.

- It helps prevent battery drain during long storage
- It enables quick power isolation for maintenance
- The removable knob adds security against casual tampering
- Works with standard 12-48V systems and 15-17mm posts
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