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MaGnuM PRoDuct GuiDe
CA013002EN—April 2017 www.eaton.com
25
Magnum SB - Product specific information
Magnum SB family
Standards and certifications
The Magnum SB low voltage
insulated case power circuit
breaker is certified to UL 1066,
but is specifically designed for
the performance requirements
of UL 891 switchboard class
applications .
UL and ANSI test
certifications
Magnum SB meets or exceeds
all applicable ANSI, NEMA, UL
and CSA standards, including:
•
ANSI C37 .13 (low voltage
AC power circuit breakers
used in enclosures)
•
ANSI C37 .16
(preferred ratings,
related requirements,
and application
recommendations for
low voltage power circuit
breakers and AC power
circuit breakers)
•
ANSI C37 .17 (trip devices
for AC and general purpose
DC low voltage power
circuit breakers)
•
ANSI C37 .50 (test
procedures for low voltage
AC power circuit breaker
used in enclosures)
•
UL 1066 (standard for low
voltage AC and DC power
circuit breakers used in
enclosures)
Comprehensive enclosure
solutions
Magnum SB has proven
performance in Eaton
manufactured switchboards
with the following test
certifications:
•
UL 891 (certified Pow-R-Line
C low voltage switchboards)
•
C22 .2 No . 31-14 Switchgear
assemblies
Approvals and marks
•
UL listed: Magnum SB
breaker UL file E52096 and
Cassette UL file E204565
•
Additional Magnum SB
approvals and certificates
can be found on
www .
eaton .com/magnum
Magnum SB circuit breaker
details
Magnum SB is a low voltage
insulated-case circuit breaker
family designed for the
performance requirements of
UL 891 switchboards .
These characteristics are:
•
Magnum SB breakers
have short time current
ratings and fixed internal
instantaneous trip ratings,
which is characteristic of
UL 489 molded-case
breakers commonly used
in UL 891 switchboards .
This provides for improved
coordination and selectivity
for most commercial
switchboard applications .
The instantaneous trip
function facilitates feeder
circuit breaker protection
in UL 891 switchboards
with 3-cycle bus bracing .
This yields reduced energy
let through to downstream
circuits by eliminating the
fault current above the fixed
instantaneous trip point .
•
Magnum SB insulated-
case circuit breakers have
Interruption ratings up to
150 kA with continuous
current ratings up to 5000A .
Magnum SB non-automatic
breaker (switch)
The non-automatic Magnum
SB breaker (switch) shares the
same frame and accessories
as the circuit breaker . It
does not, however, have the
following:
•
Trip unit
•
Sensors
•
Overcurrent release
Like the Magnum SB breaker,
the switch is available in both
three-pole and four-pole, fixed
and drawout configurations .
A non-automatic circuit
breaker includes separable
contacts for movement
between a closed position
and an open position, and
an operating mechanism for
moving the separable contacts
between the two positions .
It cannot be used for branch-
circuit protection .
