Victron Energy AC Current Sensor for Single Phase, Max 40A — MultiPlus/Quattro Compatible

Feeds clean VA and kWh data to my Color Control GX. Readings match my clamp meter within a couple percent. Essential for load management in my off-grid system.

Works perfectly with my MultiPlus. Easy setup.

The hardware itself is solid and the readings are consistent. My only complaint is that Victron's documentation on exactly where to connect it to the AUX input is spread across multiple manuals. Once I figured it out, the data flow was instant and accurate. Would recommend for anyone doing generator start logic or load shedding.

Wired this into my Quattro's AUX input to monitor AC loads, and now my genset only kicks on when actually needed instead of on a dumb timer. The apparent power data in VRM is genuinely useful for spotting phantom loads too. Small device, big upgrade to system intelligence.

It does what it says and pairs with my MultiPlus fine. Took me a while to realize my firmware needed updating before the AUX input would accept the data properly. Not the sensor's fault, but a smoother experience would've earned a higher rating.

You can feel the Victron standard the moment you pick it up. Installation on my single-phase panel was straightforward, and the 40A range comfortably covers my whole house circuit. Data has been rock steady for three months straight.

The first sensor reported zeros constantly. Seller shipped a replacement right away and that one works flawlessly with my MultiPlus setup. Can't fault the product design, but quality control on this batch seems hit or miss. Rating is for my experience with the first unit.

I use it to track AC consumption on the workshop circuit, and the VRM graphs are revealing — turns out my air compressor draws way more than I thought. Setup took an hour including firmware checks. Happy with the purchase at 50% off.

Accurate, well made, and integrates seamlessly with the rest of my Victron ecosystem. No regrets.

Three weeks in and the sensor hasn't dropped a reading. The kWh tracking lets me verify my solar offset claims against my utility bill, and the numbers match nicely. Instructions assume some familiarity with GX devices, so beginners may need forum help.