Electrical Specifications - Siemens 72G Series Setup Manual

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Electrical Specifications

Input Power and Control
Duty Cycle Rating
Motor Protection
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Siemens Energy & Automation, Inc. 3333 Old Milton Parkway Alpharetta, GA 30202
16
Control Power
Operating frequency
Three Phase
Motor Run Input
Up to Speed Output
Number of Contacts
Rated Operational Current
Make/Break VA
Expected Operations @ rated load
Ready Output
Number of Contacts
Rated Operational Current
Make/Break VA
Expected Operations @ rated load
Duty Cycle
Starts per hour
Overload
Current Imbalance
Shorted S.C.R.
Fault Contactor
+ 15% of 120 VAC
50/60 Hz
-15%/+10% 200-460 VAC
-15%/+10% 460-575 VAC
+ 5 Hz of 50/60 Hz
Pull in: 79 VAC max.
Drop out: 20 VAC min.
Off State Leakage: 1.5mA max.
Solid State, AC Voltages Only
1 Normally Open
1 Amp @ 120 VAC
1200 VA for 250 mS / 120 VA
6
10 x 10 cycles
Mechanical Relay
1 Normally Open, 7 & 8
1 Normally Closed 9 & 10,11
3.0 Amps @ 120 VAC
3600/360 VA
100,000 cycles
30% @ 140% of rated FLA
80
Class 5, adjustment range is 33% to 125%
of Rated Amps
Adjustable trip ratio (lowest motor
winding current divided by the highest
motor winding current) from .1 to .75.
Two second delay allows for system to
recover if possible.
Trips in 2 seconds if a shorted SCR is
detected.
Opens on all faults. Note: The motor
is not electrically isolated with the
contactor open when wired in Delta.