Product Datasheet
BOX STYLE CIRCUIT BREAKERS
PART NUMBERS
BOXED
CURRENT
RATING
VOLTAGE
RATING
RESET
TYPE
HOUSING
MATERIAL
MOUNTING
METHOD
TERMINALS
BULK
RETAIL
30171-15
30171-15-BX
30171-20-BX
–
–
15
20
25
30
24
24
24
24
Type I
Type I
Type I
Type I
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Terminal
Terminal
Terminal
Terminal
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
30171-20
30171-25
30171-30
–
–
–
30171-30-BX
Bolt-Down
(Bracket)
30172-10
30172-15
30172-20
30172-30
–
–
–
–
–
10
15
20
30
24
24
24
24
Type I
Type I
Type I
Type I
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Bolt-Down
(Bracket)
30172-15-BX
30172-20-BX
30172-30-BX
Bolt-Down
(Bracket)
Bolt-Down
(Bracket)
30174-10
30174-15
30174-20
30181-15
30181-40
30402-20
30402-30
30406-15
30406-40
30406-50
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
10
15
20
15
40
20
30
15
40
50
Type I
Type I
Type I
Type II
Type II
Type I
Type I
Type III
Type III
Type III
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Plated Steel
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Terminal
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Two Square Blade
Two Square Blade
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
24
24
24
24
24
12
12
12
12
12
Terminal
Terminal
Terminal
Terminal
Bolt-Down
(Cross-Bracket)
30423-10
–
–
10
24
Type III
Plated Steel
Two 10-32 Studs
30427-15
30427-30
30427-40
30427-50
–
–
–
–
–
–
–
–
15
30
40
50
12
12
12
12
Type I
Type I
Type I
Type I
Gray Plastic
Gray Plastic
Gray Plastic
Gray Plastic
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Two 10-32 Studs
Dimensions in millimeters (inches)
30056 Series
Dimensions shown for 30056 series, Dimensions may vary per part number.
For More information on a specific part number please visit: Littelfuse.com/boxstylecb
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Rev: 042920-B