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MaGnuM PRoDuct GuiDe
CA013002EN—April 2017 www.eaton.com
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Overview of the Magnum low voltage circuit breaker
Magnum SB family
Magnum SB low voltage
insulated case power circuit
breakers are certified by UL
1066 . The SB Family was
designed for the performance
and economic requirements
of UL891 switchboard class
applications overall . Refer to
Figure 2 for a visual reference
and Table 2 for a quick ratings
reference .
Product family
characteristics:
•
Switchboard class
•
Up to 635 Vac
•
Three- and four-pole
configurations
•
Drawout and fixed mounted
•
200A to 5000A continuous
current
•
50 kA to 150 kA interrupting
ratings
•
Short-time withstand up to
100 kA
Magnum SB insulated case circuit breakers
Table 2 . Magnum SB insulated case breaker family ratings (Class UL 891)
Interruption
rating (kA)
@ 440 Vac
Icu =Ics
800 Amp
Frame
1200 Amp
Frame
1600 Amp
Frame
2000 Amp
Frame
2500 Amp
Frame
3000 Amp
Frame
4000 Amp
Frame
5000 Amp
Frame
150
130
100
85
65
50
= Magnum SB standard frame
= Magnum SB narrow frame
= Magnum SB double narrow frame
= Magnum SB double standard frame
Interruption rating shown based on breaker equipped with integral Digitrip RMS trip unit.
Refer to Section 2 for a detailed ratings table.
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2
3
6000A is available in fan cooled switchgear. See
www.eaton.com/lva
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