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Magnum PXR accessories
MAGNUM PXR PRODUCT GUIDE
PA013006EN September 2022 www.eaton.com
4
Overcurrent trip switch (bell alarm)
An overcurrent trip switch (bell alarm) is an optional device
that can be used in conjunction with the mechanical trip
flag. It provides an electrical indication when a circuit
breaker trips as a result of a trip unit activation. Opening
as a result of a circuit breaker’s manual open button, shunt
trip, or undervoltage release does not cause the overcur-
rent trip switch to operate.
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 subse-
quent remote electrical closing signal.
Motor operator
A motor operator is an electric motor assembly internally
mounted in the circuit breaker. It charges the closing
spring electrically for remote or local operation. It can be
factory or site installed. A UL Listed motor operator kit is
available to make the conversion from a manually operated
breaker to an electrically operated breaker.
Table 16. Compact motor operator ratings
Control voltages
Operational
volagte range
85-110%
Running current
(A. avg)
Typical inrush
current
Power
consumption
(W or VA)
Maximum
charging time
(seconds)
Kit catalog
number
24 Vdc
20-26 Vdc
12
300% of running
300
5
MMOTL
48 Vdc
41-53 Vdc
5
500% of running
250
5
MMOTK
60 Vdc
51-66 Vdc
3
600% of running
250
5
MMOTS
110-125 Vac/Vdc
94-138 Vdc
2
600% of running
250
5
MMOTW
220-250 Vac/Vdc
187-275 Vdc
1
600% of running
250
5
MMOTT
Table 17. Motor operator ratings
Control voltages
Operational
volagte range
85-110%
Running current
(A. avg)
Typical inrush
current
Power
consumption
(W or VA)
Maximum
charging time
(seconds)
Kit catalog
number
24 Vdc
20-26 Vdc
12
300% of running
300
3
MMOT3
48 Vdc
41-53 Vdc
5
500% of running
250
3
MMOT4
110-125 Vac/Vdc
94-138 Vdc
2
600% of running
250
3
MMOT1
220-250 Vac/Vdc
187-275 Vdc
1
600% of running
250
3
MMOT2
Figure 47. Mechanical trip indicator
