Eaton IZM20, Инструкция по эксплуатации и обслуживанию

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37
10/09 AWB1230-1605
Effective October 2009
Operation and maintenance of
IZM low voltage air circuit breakers
MOELLER www.moeller.net/de/support
Figure 52. Motor Operator Installed in IZM93 an IZM20 Frame
Circuit Breaker
Mechanical accessories
There are 11 optional mechanical type accessories:
•
Operations counter
•
Off key lock
•
Cassette lock
•
Pushbutton cover
•
Prevent close cover
•
Cassette safety shutters
•
Cassette cell switch
•
Door escutcheon
•
Waterproof cover
•
Mechanical interlock
•
Mechanical (pop-out) trip indicator
Operations counter —The operations counter is a mechanical
device used to provide a record of the number of circuit breaker
open-close operations. It is mounted in the lower right portion
of the circuit breaker and can be viewed through the front cover
( Figure 53 ).
Off key lock —The off key lock secures the circuit breaker in the
OFF position. It is mounted in the lower right portion of the circuit
breaker and can be viewed through the front cover ( Figure 53 ). The
customer supplies the key lock. The provisions available are for Kirk,
Castell, Ronis, or CES.
Figure 53. Cover-Mounted Key Lock and Operations Counter
Cassette lock —A cassette-mounted lock can be used in
conjunction with different interlocking schemes (such as main-
tie-main) ( Figure 54 ). The lock holds the circuit breaker trip-free
in the CONNECTED position, preventing it from being closed.
Up to three lock cylinders can be installed on one cassette. Moeller
supplies the lock provisions only. The customer is responsible for
the locks, which can be Kirk or Castell.
Figure 54. Cassette-Mounted Key Lock
Operations Counter
OFF
Key
Lock
Table 10. Motor Operator
Control Voltages
a
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
a
AC voltages are 50/60 Hz.