In a joint press conference with his Cypriot counterpart Ioannis Kasoulides here on Sunday, he said he will only discuss nuclear topics with Kerry during the Wednesday meeting, according to IRNA News Agency.
He reiterated that Tehran had no political ties with Washington, adding that any talks with Kerry would concentrate on topics pertaining to Iran's nuclear negotiations with G5+1.
He further noted that Iran had nothing to talk about with the US in other areas.
The Iranian foreign minister stressed that Iran is constantly examining the efficiency and fruitfulness of the talks.
He said his visit to Geneva on Wednesday is a one-day trip, adding that he is planning more trips to some European countries.
He also noted that Iran is going to host the Russian foreign minister soon to review what Iran expects from Moscow in talks with G5+1.
Zarif further announced that Iran is going to continue its constructive talks with China in future as well.