The T-H Marine Battery Cut-Off Switch features a compact and easy-to-use design. Designed to help prevent battery drain and unauthorized access.• Compact and easy-to-use battery cut-off switch• Removable key• Disables and reactivates 12-volt electrical systems• Helps prevent battery drain and unauthorized access• Rated for 100-amp continuous load Rated for 100-amp continuous load Removable key disables & reactivates 12V electrical systems