Eaton SBN-508 User Manual

51
Instructional Leaet IB2C12063H03
Effective March 2012
Instructions for Installation, Operation and
Maintenance of Magnum SB Insulated Case
Low Voltage Power Circuit Breakers
EATON CORPORATION www.eaton.com
The status of the contacts changes when the trip indicator
pops out. This permits the switch to be used as an alarm or in
conjunction with a spring release to block a subsequent remote
electrical closing signal.
Motor Operator
A Motor operator is an electric motor assembly internally
mounted in the circuit breaker (Figures 68 and 69). It charges
the closing springs electrically for remote or local operation.
The motor operator can be factory or site installed (Table 11).
To convert a manually operated circuit breaker to an electrically
operated circuit breaker, a UL listed motor operator kit is
available.
Table 11. Motor Operator
Control j
Voltages
Operational
Voltage
Range
85-110%
Running
Current
(A. avg.)
Typical
Inrush
Current
Power
Consumption
(watts or VA)
Maximum
Charging
Time
(seconds)
24 Vdc 20-26 12.0 300% of Running 300 5
48 Vdc 41-53 5.0 500% of Running 250 5
110-125 Vdc 94-138 2.0 600% of Running 250 5
220-250 Vdc 187-225 1.0 600% of Running 250 5
110-127 Vac 94-140 2.0 600% of Running 250 5
208-240 Vac 177-264 1.0 600% of Running 250 5
j AC voltages are 50/60Hz
Figure 68. Motor Operator Kit
Figure 69. Motor Operator Installed in Narrow Frame Circuit
Breaker
Operations
Counter
“OFF”
Key Lock
Figure 70. Cover Mounted Key Lock and Operations Counter

Eaton SBN-508 Specifications

General

Brand	Eaton
Model	SBN-508
Category	Circuit breakers
Language	English