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Technical Data
Line Voltage
Type
Operating Voltage:
Line Frequency
Phase Sequence
Power Consumption
Low Voltage and Voltage Unbalance
Type
Low Voltage:
Trip Voltage
Reset Voltage
Voltage Unbalance:
Trip Unbalance
Reset on Balance
Trip Delay:
Range
Tolerance
Phase Reversal and Phase Loss
Response Time --
Phase Reversal
Phase Loss
Phase Loss
Reset
Output
Type
Form
Rating
Life
Protection
Surge
Isolation Voltage
Mechanical
Mounting*
Package
Environmental
Operating Temperature
Storage Temperature
Weight
Low Voltage Products & Systems
ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com
3 Phase Voltage Monitor
PLM Series
Motor Protector
3 phase Delta or Wye with no connection to neutral
Model
Adj. Line Voltage Range Line Voltage Max.
240
380
480
50 ... 100 Hz
ABC
≅ 2W for 240 V units
≅ 3W for 380 ... 480 V units
Voltage detection with delayed trip & automatic reset
88 ... 92% of adjusted line voltage
Plus 3% of trip voltage
Factory fixed from 4 ... 8%
-0.7% unbalance typical
Factory fixed from 2 ... 20 s
+/-15%
≤ 200 ms
≤ 200 ms
> 35% unbalance
Automatic
Electromechanical relay
Isolated single pole double throw (SPDT)
10 A resistive at 240 V AC, 277 V AC Max.
1/2 Hp at 240 V AC; 1/4 Hp at 120 V AC
Mechanical -- 1 x 10
IEEE C62.41-1991 Level B
≥ 2500 V RMS input to output
8 pin plug-in socket rated 600 V AC
3.2 x 2.39 x 1.78 in. (81.3 x 60.7 x 45.2 mm)
-40°C ... +60°C
-40°C ... +85°C
≅ 4.4 oz (125 g)
Mechanical View
Inches (Millimeters)
200 ... 240 V AC
270 V AC
360 ... 430 V AC
480 V AC
400 ... 480 V AC
530 V AC
7 ;
5
Electrical --1 x 10
*CAUTION: Select an octal socket rated
for 600 V AC operation.
1TRC 001 009 C0202
7.13
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