Boncuk
New Member
Hi,
I need a 30mΩ shunt resistor for a solar charger to determine charge current into the battery.
The power rating should be 3W for 10A max current flow.
Two wire resistors are difficult to get for that power rating and their series start at 0.18Ω normally.
There are four-wire precision resistors being manufactured with a range of 0.5mΩ to 1Ω.
Searching in the internet there are lots of descriptions why 4-wire resistors are used, but I didn't find any application about how to connect the terminals.
Here is the data sheet of the ISA-PLAN type PBV resistors. It doesn't contain any wiring diagram as well.
It's pins are labeled 2XI and 2XU. That's all I can find.
Can somebody shed some light on it?
Thanks to all
Boncuk
I need a 30mΩ shunt resistor for a solar charger to determine charge current into the battery.
The power rating should be 3W for 10A max current flow.
Two wire resistors are difficult to get for that power rating and their series start at 0.18Ω normally.
There are four-wire precision resistors being manufactured with a range of 0.5mΩ to 1Ω.
Searching in the internet there are lots of descriptions why 4-wire resistors are used, but I didn't find any application about how to connect the terminals.
Here is the data sheet of the ISA-PLAN type PBV resistors. It doesn't contain any wiring diagram as well.
It's pins are labeled 2XI and 2XU. That's all I can find.
Can somebody shed some light on it?
Thanks to all
Boncuk
Attachments
Last edited: