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Technical Data
Line Voltage
Type
Operating Voltage
200 ... 480 V AC
Line Voltage Max.
Line Frequency
Phase Loss
Response Time ≤200ms
Undervoltage and Voltage Unbalance
Type
Overvoltage:
Reset Voltage
Undervoltage:
Reset Voltage
Voltage Unbalance:
Trip Set Point
Reset on Balance
Trip Delay
Restart Delay
Over/Under Frequency
Phase Sequence
Response Time-Phase Reversal
& Phase Loss
Reset
Output
Type
Form
Rating
Life
Protection
Surge
Isolation Voltage
Circuitry
Mechanical
Mounting
Package
Termination
Environmental
Operating Temperature
Storage Temperature
Humidity
Weight
Mechanical View
-Hole for Mounting with One #10 (M4 x 0.7) Screw
Inches (Millimeters)
Low Voltage Products & Systems
ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com
Universal 3 Phase Voltage Monitor
HLMU Series (DPDT)
Motor Protector
3 phase Delta or Wye with no connection to neutral
Range
Voltage Adjustment Range
240
200 ... 240 V AC
380
340 ... 420 V AC
480
400 ... 480 V AC
550 V AC
50 or 60 Hz Automatically detected
≥ 25% Unbalance
Voltage detection with delayed trip & automatic reset
Trip Voltage
109 to 113% of the adjusted line voltage
≅ -3% of the trip voltage
Trip Voltage
88 ... 92% of the adjusted line voltage
≅ +3% of the trip voltage
Adjustable 2 ... 10%; or specify fixed unbalance of 2 ... 10% in 1% increments
≅ -0.7% Unbalance
Active On
Over/Undervoltage, Voltage Unbalance, Over/Under Frequency
Range
Adjustable from 1 ... 30 s; or specify fixed delay 1 ... 30 s in 1 s increments
Tolerance
± 15%
Range
Adjustable from 0.6 ... 300 s; if no restart delay is selected a 0.6 s initialization delay applies
Tolerance
± 15%
Trip / Reset
±4%; Reset ±3%; 50 or 60 Hz
A, B, C, L1, L2, L3
≤200 ms
Automatic
Isolated Electromechanical Relay
Double pole double throw (DPDT)
10 A resistive at 240 V AC; 8 A resistive at 277 V AC; N.O-1/4 hp at 120 V AC; 1/3 hp at 240 V AC;
Mechanical -- 1 x 10
Electrical -- (at 10 A) -- DPDT = 1 x 30
IEEE C62.41-1991 Level B
≥ 2500 V RMS input to output
Encapsulated
Surface mount with one #10 (M5 x 0.7) screw
Note: 0.25 in.(6.35 mm) spacing between units or other devices is required
3 x 2 x 1.5 in. (76.7 x 51.3 x 41.7 mm)
Screw terminal connection for up to 12 AWG (3.3 mm
-40°C ... +60°C
-40°C ... +85°C
95% relative, non-condensing
≅ 3.9 oz (111 g)
Line Frequency
50 or 60 Hz
50 Hz
60 Hz
6
3
Cover Detail
Knobs & Dials
(Fully adjustable
Part Numbers)
2
) wire
7.9
1TRC 001 009 C0202
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