Replacing a Crabtree Starbreaker B32 RCBO 30mA Circuit Breaker Old Type

[Nicovid]

Hi, I need to replace a Crabtree Starbreaker B32 RCBO 30mA CIRCUIT BREAKER. 61/B3230 old type which is now obsolete and can only be bought online from Ebay.
Comapring the image of the breaker online, there is a small difference to the one that needs replacing. Printed above 30mA is a square box which has 2 squiggly lines
within the box. The image on Ebay, there is only 1 squiggly line. What does the squiggly lines refer to ? Would it be possible to replace the breaker with
2 squiggly lines with the breaker with 1 squiggly line. If not, what are the options open to me, is there an equivalent breaker out there to replace this old type, or would I have to replace and install a new consumer box.
I will be getting an electricion to do this work I just wanted advice on the options before calling an electrician.
Many Thanks in advance.
Paul N.

 

[westward10]

A modern Starbreaker should fit. It will be only one module wide whereas yours is two module. Make sure they get the compact version. I can't put up a link but Google Starbreaker 32A compact rcbo.

 

[Nicovid]

A modern Starbreaker should fit. It will be only one module wide whereas yours is two module. Make sure they get the compact version. I can't put up a link but Google Starbreaker 32A compact rcbo.

Thank you so much.
Regards,

Paul N.