You can stack at least two 120V OutBack Power Inverters when 1) they are wired as such AND 2) when you program the OutBack Power MATE3s to indicate a 240V system. A MATE3s is required to accomplish this.
MATE2M has been discontinued. MATE2M had some of the menus routed specifically for Mobile/Marine, however, MATE2 has all of the information available that MATE2M did.
OPTICS RE Firmware Upgrade for the MATE3 and AXS Port . Access your solar energy system anytime, anywhere. Remotely monitor a renewable energy system from OutBack Power and control over 600 system settings with the touch of a button from any internet connected device. This latest OPTICS RE firmware release includes improved connection reliability, remote stacking [...]