![background image](http://html1.mh-extra.com/html/eaton/izm97/izm97_instruction-manual_3898351031.webp)
27
New generation IZM97, 99 low voltage air circuit breaker instruction manual
MN013010EN February 2020 www.eaton.com.cn
Section 4: Accessory devices
Control voltages
Operational voltage
range 85–110%
Running current
(A. Avg.)
Typical inrush current
Power consumption
( VA)
Maximum charging
time (s)
24 Vdc
48 Vdc
110-125 Vdc
220-250 Vdc
110-127 Vac
208-240 Vac
20-26
41-53
94-138
187-225
94-140
177-264
12.0
5.0
2.0
1.0
2.0
1.0
300% of running
500% of running
600% of running
600% of running
600% of running
600% of running
300
250
250
250
250
250
5
5
5
5
5
5
AC voltages are 50/60Hz
Table 4.5 Motor operator
It provides an electrical indication when a circuit breaker
trips as a result of the trip unit reacting to an overcurrent
condition. Opening as a result of a circuit breaker’s manual
open button, shunt trip, or undervoltage release does not
cause the overcurrent trip switch to operate. The overcurrent
trip switch has (2a 2b) Form C contacts.
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 (Figure
4-9 and Figure 4-10). It charges the closing springs electrical-
ly for remote or local operation. The motor operator can be
factory or site installed (Table 4.5).
To convert a manually operated circuit breaker to an electri-
cally operated circuit breaker, a motor operator kit is avail-
able.
Figure 4-9 Motor operator kit
Figure 4-10 Motor operator installed in narrow frame
circuit breaker