Arizona Public Safety Personnel Retirement System, Phoenix, committed $50 million to Tritium III.
The $17.4 billion pension fund completed the commitment to the buyout fund managed by Tritium Partners on March 9, pension fund spokesman Christian Palmer said in an email.
The pension fund previously committed $25 million directly and $5 million in co-investments to Tritium I in 2015.
As of Jan. 31, the pension fund's actual allocation to global private equity was 22.8%; the target is 27%.