Judge Siti Aminah Ghazali imposed the fine on Norliza Osman, 42, after she pleaded guilty to the charge read by the court interpreter.
The court also ordered the accused to be placed on a good behaviour bond for three years and to perform 120 hours of community service in six months starting today.
The babysitter was charged with mistreating the victim, causing him injuries at her house in Jalan P9 G Phase 2, Putrajaya, near here, from 10 am to noon on Jan 2.
The charge was framed under Section 31(1)(a) of the Child Act 2011, which carries a fine of up to RM50,000 or a jail term of up to 20 years or both if convicted.
Earlier, the unrepresented accused appealed to avoid a prison sentence as she has two school-going children.
Deputy Public Prosecutor Nidzuwan Abd Latif prosecuted the case.
-- BERNAMA