Description Specifications Nominal Voltage 12V DC 24V DC Start Isolation Yes Amperage Operating Current 175mA (combined) 15mA (open) Terminal Stud Torque 140 in-lb (15.82 Nm) Continuous Rating 120A Intermittent Rating 210A (5 min) Cable Size to Meet Ratings 1/0 AWG Stud Material Tinned Copper Terminal Ring Diameter Clearance 1.12in (28.45 mm) Terminal Stud Length 0.875in (22.23 mm) Terminal Stud Size 3/8″ – 16 (M10) Relay Contact Position Combine 30 sec 13.6V @ 12 V 27.2V @ 24 V Combine 90 sec 13.0V @ 12 V 26.0V @ 24 V Open 10 sec 12.35V @ 12 V 24.7V @ 24 V Open 30 sec 12.75V @ 12 V 25.5V @ 24 V Open High 16.0V @ 12 V 30.0V @ 24 V Over Voltage Lockout 16.0V @ 12V 32.0V @ 24V Under Voltage Lockout 9.5V @ 12 V 19V @ 24 V Weight 1.25lb (0.57 kg) SI-ACR automatically combines batteries during charging, isolates batteries when discharging and when starting engines. The Dual Circuit Plus™ Battery Switch simplifies the switching of two batteries to OFF or ON while still providing battery isolation between the engine and auxiliary battery. The Combine function can be used to parallel the batteries in the event of a low engine battery.
