He said the deployment was in response to a formal request from the Canadian Interagency Forest Fire Centre earlier this week.
"Canada is close to exhausting all available wildfire management resources within their country. To help provide ongoing relief, New Zealand is sending a team of firefighters and operational personnel to provide frontline and incident management support to local firefighters," said O'Connor.
"Our fire crews and incident management team members have a range of skills in high demand during lengthy firefighting operations. These include experience in logistics, communications, ferrying supplies into remote locations, and the use of aircraft."
Bushfires continued to claim more than 8000 hectares a day and hot, extreme conditions showed no sign of abating.
Current firefighting efforts in British Columbia remain focused on public safety and keeping highway evacuation routes open.
O'Connor said the New Zealand contingent would join the 3000-plus people and 200 planes currently engaged in the British Columbia operation.