This dual circuit plus battery switch simultaneously switches two isolated battery banks, or combines battery banks to all loads. The make before break contact design allows you to switch between battery banks without any power interruption.

Specifications:
Switch Type: Dual Circuit Plus.
Switch Positions: 3.
Battery Combine: Yes.
Alternator Field Disconnect: No.
Maximum Voltage: 32V DC.
Stud Size: 3/8".
Terminal Stud Torque: 120 in-lb (13.56 Nm).
Continuous Rating: 300A.
Intermittent Rating: 450A (5 Minutes).
Cranking Rating (30 Seconds): 675A.
Battery Inputs: 2.
Cable Clearance For 4/0 AWG Cables: 28.45mm (1.12").
Cable Size To Meet Ratings: 120mm².
Mounting Holes: Accepts #10 Screw.
Stud Material: Tinned Copper.
Stud Torque: 120 in-lb (13.56 Nm).
Terminal Stud Size: 3/8 - 16 (M10).
Weight 0.36kg (0.08lb).