In case of space constraints in the switch board, rope CT’s can be used. Please note that rope CT’s are voltage reference CT’s, which are smaller than current reference CT’s and can only be used along with the 480VUL Fronius Smart Meter. So, if you have proposed a system with a 50 kA Fronius Smart Meter and you have space constraints in the main switchboard, then you can solve the situation by having a 480V UL Fronius smart meter with rope CT’s.