Square D QO240

COMMON TRIP, THERMAL MAGNETIC; 2 POLE; 120/240 VAC AT 50/60 HZ (UL/CSA); 40 AMPERE; INTERRUPTING RATING 10 KILOAMPERE; WIRE SIZE 8 TO 2 AWG (ALUMINUM/COPPER); PLUG ON MOUNTING; SIZE 1.5 INCH W X 2.91 INCH D X 3 INCH H; APPROVAL UL; USED ON LOAD CENTER

Square D QO245

COMMON TRIP, THERMAL MAGNETIC; 2 POLE; 120/240 VAC AT 50/60 HZ, 48 VDC; 45 AMPERE; INTERRUPTING RATING 10 KILOAMPERE AT 120/240 VAC, 5 KILOAMPERE AT 48 VDC (UL/CSA); WIRE SIZE 8 TO 2 AWG (ALUMINUM/COPPER); PLUG ON MOUNTING

Square D QO250

COMMON TRIP, THERMAL MAGNETIC; 2 POLE; 120/240 VAC AT 50/60 HZ, 48 VDC; 50 AMPERE; INTERRUPTING RATING 10 KILOAMPERE AT 120/240 VAC, 5 KILOAMPERE AT 48 VDC (UL/CSA); WIRE SIZE 8 TO 2 AWG (ALUMINUM/COPPER); PLUG ON MOUNTING

Square D QO2020

This plug in circuit Breaker is made by Square D. It’s considered a twin circuit breaker and allows users to fit two circuits into one panel space. Each circuit is rated at 120 volts. This breaker has two metal clips on the bottom.