QO® Circuit Breaker Load Centers, PK15GTA, from Square D® are Underwriters Laboratories (UL) Listed and CSA rated panelboards. They are designed to meet residential, commercial, and industrial requirements to protect electrical systems, equipment, and people. Specifications: Product line QO Product type Bar Complementary: Number of connectors 15 Wire size AWG 14...AWG 4 copper AWG 12...AWG 4 aluminium Provided equipment 2 screw Bar length 5.63 in (143 mm) Maximum length of segment 3.15 in (80 mm) Device mounting Direct mounting back of enclosure Height 0.437 in (11.10 mm) 0.437 in (11.10 mm) Depth 0.312 in (7.92 mm) 0.312 in (7.92 mm) Tightening torque 30 lb.in Mounting screw 30 lb.in 20 lb.in, AWG 14...AWG 10, copper 20 lb.in, AWG 12...AWG 10, aluminium 25 lb.in, AWG 8 35 lb.in, AWG 6...AWG 4 25 lb.in, AWG 14...AWG 12, copper 25 lb.in, AWG 12...AWG 10, aluminium Packing Units: Unit Type of Package 1PCE Number of Units in Package 1