Specifications

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16.6
Tr a n s f er Switches
Standard and Optional Features
Field Kits Available
Replacement controllers as,
well as field upgrade kits, are
available and identified by
style numbers.
Controller Field Kits—
8160A00G X X
Consult factory for correct
selection for group number.
Option Field Kits—
8160A X X G X X
Consult factory for correct
selection of style number.
51S1B. 50 kA—SPD
standard source 1
51S2B. 80 kA—SPD
standard source 1
51S3B. 100 kA—SPD
standard source 1
51S4B. 120 kA—SPD
standard source 1
51S5B. 160 kA—SPD
standard source 1
51S6B. 200 kA—SPD
standard source 1
51S7B. 250 kA—SPD
standard source 1
51S8B. 300 kA—SPD
standard source 1
51S9B. 400 kA—SPD
standard source 1
51S1C. 50 kA—SPD standard
with surge counter source 1
51S2C. 80 kA—SPD standard
with surge counter source 1
51S3C. 100 kA—SPD
standard with surge counter
source 1
51S4C. 120 kA—SPD
standard with surge counter
source 1
51S5C. 160 kA—SPD
standard with surge counter
source 1
51S6C. 200 kA—SPD
standard with surge counter
source 1
51S7C. 250 kA—SPD
standard with surge counter
source 1
51S8C. 300 kA—SPD
standard with surge counter
source 1
51S9C. 400 kA—SPD
standard with surge counter
source 1
51SC8. Remote display panel
(8 feet standard)
51SC12. Remote display
panel (12 feet)
51SC4. Remote display panel
(4 feet)
54. Front Access
54A. Front access cabinet
available for all Magnum
products. This option will
add an additional pull section
mounted on the side of
the switch.
59a. Silver-Plated Bus
Silver-plated bus is a standard
feature for all Magnum-based
designs.
59b. Tin-Plated Bus
Tin-plated bus is available as
an option for Magnum-based
designs.
Glossary
With respect to their use in
this document and as they
relate to switch operation,
the following terminology
is defined:
Available—A source is
defined as “available” when
it is within its undervoltage/
overvoltage/underfrequency/
overfrequency (if applicable)
set point ranges for the
nominal voltage and
frequency setting.
Fail-safe—A feature that
prevents disconnection from
the only available source and
will also force a transfer or
retransfer operation to the
only available source.
Retransfer—Retransfer is
defined as a change of the
load connection from the
secondary to primary source.
Source 1—is the primary
source or normal source or
normal power source or
normal. (Except when Source
2 has been designated the
“Preferred Source.”)
Source 2—is the secondary
source or emergency source
or emergency power source
or emergency or standby or
backup source. (Except
when Source 2 has been
designated the “Preferred
Source.”)
Source 1—Failed or fails—
Source 1 is defined as “failed”
when it is outside of its
undervoltage or overvoltage
or underfrequency or
overfrequency (if applicable)
set point ranges for the
nominal voltage and
frequency setting.
Source 2—Failed or fails—
Source 2 is defined as
“failed” when it is outside
of its undervoltage or
overvoltage or under-
frequency or overfrequency
(if applicable) set point ranges
for the nominal voltage and
frequency setting for a time
exceeding 0.5 seconds after
the time delay emergency fail
(TDEF) time delay expires.
Transfer—“Transfer” is
defined as a change of the
load connection from the
primary to secondary
source except when
specifically used as
“Transfer to Neutral.”
Transfer to Neutral—
“Transfer to Neutral” is
defined as when the load
circuits are disconnected
from both Source 1 and
Source 2.