Blue Sea Systems 7700 Remote Battery Switch 12V 500A

Operating Voltage Range: 9-16V DC
Continuous Amperage: 500A*
5 Minute Intermittent Amperage: 700A*
30 Second Cranking Amperage: 1450A*
Live Current Switching: 300A
*Requires parallel 4/0 AWG cables to achieve ratings
Battery Bank Inputs: 1
Relay Function: Bi-Stable
Current Draw Open/Closed State: 0A
Current Draw Changing State: 7A @ 40 ms
Mechanical Endurance Low Current: 100,000 Cycles
Mechanical Endurance 300A Live Switching: 10,000 Cycles
Remote Switch Function: Momentary SPDT
Ignition Protected: Yes, ISO 8846, J1171
Ingress Protection: IP66 - water resistant protected against powerful water jets

Stud Size: 3/8in
Stud Count: 2
Max Wire Size: Parallel 4/0 AWG*
*Requires parallel 4/0 AWG cables to achieve ratings
Mounting Holes: 4
Mounting Screw: #10 (M5)
Mounting Options: Surface mount
Pigtail Wire Size: 16 AWG
Pigtail Wire Count: 5
Remote Switch Format: Carling Contura 2/3

These magnetic latching remote battery switches are in nearly every system we design. Remote switches are taking place of manual battery switches for one reason, simplicity. You can mount remote switches closer to the battery to save money on large battery cable. Then mount the control switch somewhere convenient, like the dash. These ML-RBS are special with their ability to continuously handle 500A, switch live currents, and have 0A operating current when open or closed. They are so reliable that Mastervolt requires these exact switches be used on all of their MLI Ultra lithium batteries as a safety disconnect triggered by the Mastervolt BMS.

All of those features make this a great switch, but sometimes it's the little things that take a product from great to phenomenal. For us the manual override knob on this switch does just that. So not only is it a remote controlled switch but also a traditional manually controlled switch. Redundancy in extreme environments is paramount. This ML-RBS "switches" all the boxes.