Eaton PRL4B utilizes circuit breakers while PRL4F utilizes fusible switches. A single chassis can accommodate both circuit breakers and fusible switch

$92.41

$52.27

$42.21

$33.55

$34.71

$27.59

$41.03

$32.61

$450.81

$358.34

$121.01

$96.19

$33.43

$26.57

$32.90

$26.15

$97.00

$77.10

$28.97

$23.03