1. Simple installation, medium-sized voltage-sensing split charging relay system for safely charging 75A to 120A leisure batteries.2. The voltage sensing relay only detects the voltage rise in the vehicle charging system, allowing you to charge the recreational battery while the engine is running.3. When the engine is off, the relay isolates your recreational battery from the main starter battery. So it wont drain the main starter battery and you will always be able to start the vehicle.4. Suitable for camper vans, RVs, 4x4s, Day Vans, mobile workshops, cars or boats.5. Increase solder joints to enhance heat dissipation6. Continuous current: 140A7. Current (MAX): 160A8. Current consumption - charging: 280mA9. Current consumption - standby: 8mA10. Disengagement delay: 5-10 seconds11. Recommended fuse: 80Amp12. Power stud: M6 stainless steel13. Surge Protection: Built-inpacking list:1 x 12V 140A Voltage Sensing Split Charge Relay1 x 30cm cable black1 x 30cm cable red1 x 60CM cable red3 x 16-6 terminals2 x Red Heat Shrink Tube1 x isolator small black wire terminal4 x fixing screwsSpecification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 18cm * 18cm * 7cm / 7.09inch * 7.09inch * 2.76inch Qty per Carton 60 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 60 pcs = 10620 pcs40HQ: 412 cartons * 60 pcs = 24720 pcs