Main Electrical Disconnect in 1950's building

[Jordan F.]

Hello,

We have an original fused disconnect from 1950, when the building was built but all of the apartments have circuit breakers.  I understand that even modern multi-families may have main disconnects that are fused.  An electrician suggests that we replace it or that our insurance company will make us do so if they see it.  Do you think that this is necessary? Thanks.