Harmanpreet pleaded guilty to the Level 1 breach of the ICC Code of Conduct and accepted the sanction proposed by ICC Match Referee David Jukes.
The charge was brought by on-field umpires Billy Taylor and David Millns.
"Kaur was found to have breached Article 2.1.3 of the ICC Code of Conduct for Players and Player Support Personnel, which relates to "Showing dissent at an umpire's decision during an International Match," ICC said in a statement.
All Level 1 breaches carry a minimum penalty of an official reprimand and a maximum penalty of 50 per cent of a player's match fee.