Yes the CT will fit the NSX160 breaker, but some modification is necessary
The breaker if fitted with M8 bolts, the CT block has M6 and does not fit.
To alter the NSX160 so that the CT fits:

• Remove the snap in nuts from the bottom of the breaker
• Remove the snap in nuts from the bottom of the CT block
• Swap the blocks over

The CT block will now fit

Released for: Schneider Electric Ireland