Find the family.
Then the exact fit.

400–6,300 A; up to 690/1,140 Vac; roughly 42–150 kA; fixed or withdrawable

3.3–40.5 kV common, specialty to 72.5 kV; 630–4,000 A; 16–63 kA

36–1,100 kV; about 1,250–8,000 A; 31.5–80 kA; live-tank or dead-tank

6.3–36 kV common; 6.3–50 kA normal current/interruption duties with very high asymmetrical current; exact rating by generator size

16–1,600 A common, frames to 2,500 A; 240–690 Vac and up to 1,000/1,500 Vdc; up to 150 kA

0.5–125 A; 120–480 Vac or DC variants; 3–25 kA; B/C/D/K/Z curves

16–125 A; 2/4-pole; 10/30/100/300/500 mA sensitivity; Types AC/A/F/B

72.5–1,100 kV; 1,250–8,000 A; 31.5–80 kA

1–52 kV; 630–4,000 A; 16–63 kA; vacuum dominant

Up to 1,000 Vac / 1,500 Vdc; 0.5–6,300 A; 3–150 kA depending MCB/MCCB/ACB

24–1,500 Vdc; 1–4,000 A; semiconductor, hybrid and mechanical variants; interrupting duty application-specific