Our shunt specifications offer a variety of options, differentiated based on the current range they need to support in practical applications. For example, a 12V battery pack with a maximum output power of 2400W requires a shunt capable of supporting a maximum current of 200A. The table below outlines the specifications and their corresponding current ratings:
| Shunt Specification | Supported Current Range |
| CS30 | 0-45A |
| CS50 | 0-75A |
| TCS100 | 0-150A |
| TCS350 | 0-500A |
| TCS500 | 0-750A |
Different shunt specifications use varying materials, and larger specifications can withstand higher currents. However, simply choosing the largest specification is not the optimal approach. A large-capacity shunt can also monitor small currents starting from zero, but it has a few drawbacks.
Higher cost: The use of more materials, such as brass, increases the cost.
Different resolution compared to smaller shunts: Resolution can be understood as the scale on a ruler. A ruler that measures 0-750 meters (TCS500) and one that measures 0-75 meters (CS50) will have different smallest gradations. Some people confuse resolution with accuracy. If someone purchases a 500A shunt to monitor a current that never exceeds 30A, they might find that the minimum current change displayed is around 0.1A. For low-current applications, 0.1A is a relatively coarse gradation. This is not about accuracy. If a 30A or 50A shunt were chosen, this wouldn't be an issue, as the gradation would be 0.01A.
Therefore, the proper selection method is:
Calculate the maximum output current of the battery in your application scenario.
Based on this current, leave an appropriate margin and select the most suitable shunt specification.
This will help you choose the shunt specification that best fits your needs.
