Cut Sheet
BUSBAR DISTRIBUTION SYSTEM 60mm system ClassiC
Spec-00507 L
EQUIPMENT PROTECTIONSUBJECT TO CHANGE WITHOUT NOTICEBUSBAR SYSTEMS3
SUPPORT SPACING AND SHORT CIRCUIT CURRENT 
RATING (SCCR) VALUES  HB80508, HB01508
Consult Hoffman for HB01231 and HB01232 support spacing and 
SCCR values.
Circuit Breaker Protected System (Any DIVQ/7)
Busbar, cross section
Max. CB Rating SCCR
Max. support spacing
a
480VAC
HB01618 (12x5 mm) 250 A 65 kA
800 mm
a
HB01620 (20x5 mm) 400 A 65 kA
800 mm
a
HB01622 (30x5 mm) 400 A 65 kA 800 mm
HB01625 (30x10 mm) 400 A 65 kA 800 mm
HB01625 (30x10 mm) 600 A 50 kA 800 mm
HB01623 (12x10mm) 250 A 65 kA 800 mm
HB01624 (20x10 mm) 400 A 65 kA 800 mm
600VAC
HB01618 (12x5 mm) 250 A 25 kA
800 mm
a
HB01620 (20x5 mm) 400 A 35 kA
800 mm
a
HB01622 (30x5 mm) 600 A 32 kA 800 mm
HB01625 (30x10 mm) 400 A 35 kA 800 mm
HB01625 (30x10 mm) 600 A 25 kA 800 mm
HB01623 (12x10 mm) 250 A - RKI 25 kA 800 mm
HB01624 (20x10 mm) 400A - RKI 35 kA 800 mm
a
Consideration should be made for mechanical support of the devices mounted to the busbar system.
Fuse Protected System
Busbar, cross section
Max. Fuse Rating SCCR
Max. support spacing
a
480VAC
HB01618 (12x5 mm) 400 A - J, T, RK1 100 kA
800 mm
a
HB01620 (20x5 mm) 400 A - RK1 100 kA
800 mm
a
HB01620 (20x5 mm) 500 A - J, T 100 kA
800 mm
a
HB01622 (30x5 mm) 400 A - RK1 100 kA 800 mm
HB01622 (30x5 mm) 500 A - J, T 100 kA 800 mm
HB01625 (30x10 mm) 400 A - RK1 100 kA 800 mm
HB01625 (30x10 mm) 600 A - J, T 100 kA 800 mm
HB01623 (12x10mm) 400 A - J, T, RK1 100 kA 800 mm
HB01624 (20x10 mm) 400 A - RK1 100 kA 800 mm
HB01624 (20x10 mm) 500 A - J, T 100 kA 800 mm
600VAC
HB01618 (12x5 mm) 100 A - RK1 100 kA
800 mm
a
HB01618 (12x5 mm) 175 A - J, T 100 kA
800 mm
a
HB01620 (20x5 mm) 200 A - RK1 100 kA
800 mm
a
HB01620 (20x5 mm) 400 A - J, T 100 kA
800 mm
a
HB01622 (30x5 mm) 400 A - RK1 100 kA 800 mm
HB01622 (30x5 mm) 500 A - J, T 100 kA 800 mm
HB01625 (30x10 mm) 400 A - RK1 100 kA 800 mm
HB01625 (30x10 mm) 450 A - J, T 100 kA 800 mm
HB01623 (12x10mm) 100 A - RK1 100 kA 800 mm
HB01623 (12x10mm) 175 A - J, T 100 kA 800 mm
HB01624 (20x10 mm) 200 A - RK1 100 kA 800 mm
HB01624 (20x10 mm) 450 A - J, T 100 kA 800 mm
a
Consideration should be made for mechanical support of the devices mounted to the busbar system.
Unprotected System
Busbar, cross section
Max. Rating SCCR
Max. support spacing
a
HB01618 (12x5 mm) 150 A, 600 VAC 18 kA
400 mm
a
HB01620 (20x5 mm) 362 A, 600 VAC 18 kA
 400 mm
a
HB01622 (30x5 mm) 500 A, 600 VAC 22 kA 400 mm
HB01622 (30x5 mm) 500 A, 600 VAC 25 kA 250 mm
HB01623 (12x10 mm) 150 A, 600 VAC 18 kA 400 mm
HB01624 (20x10 mm) 300 A, 600 VAC 18 kA 400 mm
HB01625 (30x10 mm) 756 A, 600 VAC 22 kA 400 mm
HB01625 (30x10 mm) 756 A, 600 VAC 25 kA 250 mm
a
Consideration should be made for mechanical support of the devices mounted to the busbar system.
END SUPPORT KIT
This will be the first part of any system bill of material utilizing 
rectangular busbar between 12 x 5 - 30 x 10.
BULLETIN: HB2
Catalog Number
Description Qty. UL508
cUL
HB80508 Contains 2 busbar supports (HB01508)
and 2 end covers (HB01573)
1 kit • •
UL BUSBAR SUPPORT AND END COVER
UL Busbar Support and End Cover holds the rigid copper busbars 
that span the enclosure width or height in place. Systems can be 
mounted either horizontally or vertically. These supports provide 
critical bracing against the forces exerted upon the busbar 
structure in the event of a short circuit condition. While typically 
mounted to the backpanel of the enclosure, these supports can 
also be mounted on the frame or support structure of a modular 
PROLINE enclosure system. Each support can be adjusted to 
accommodate all six rectangular standard sizes of rigid copper 
busbar. 
End Cover insulates the ends of the three rigid copper busbars 
installed in the busbar support.
BULLETIN: HB2
Catalog Number
Description Qty. UL508 cUL CSA
cURus
HB01508 For busbars 12, 20, 30 x 5, 10,
3-pole with internal screw holes
1 • • •
HB01358 Spacer fits under HB01058 1 • •
HB01357 For busbars 12, 20, 30 x 5, 10,
4-pole with internal screw holes
1 • •
HB01359 Spacer fits under HB01357 1 • •
HB01573 End cover for busbar supports
HB01508, HB01484
2 • • •
HB01131 End cover for busbar supports
HB01357
2 • • •










