Collection: Acrel

Acrel is a Chinese maker of electrical measuring instruments, listed on the Shanghai exchange and found in distribution boards half the world over. On litio.store you will find the ACR10R smart meters, the ones Felicity Solar pairs with its T-REX hybrid inverters.

The smart meter is what lets the inverter see what is happening at the utility meter: without it the battery cannot charge from the sun instead of the grid, and export cannot be held below the limit. The ACR10R-D16TE and ACR10R-D16TE4 read through clamp current transformers, so they go in without cutting the line cables.

They talk Modbus RS485, the standard every inverter understands, and mount on DIN rail in the board.