ABB DLMU Series, Selection Manual

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Voltage
Monitors
Low Voltage Products & Systems
7.7
ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com 1TRC 001 009 C0202
Technical Data
Universal 3 Phase Voltage Monitor
DLMU Series (SPDT & N.O. or N.C.)
Motor Protector
Mechanical View
DLMU2BOP
12.11.07
Line Voltage
Type 3 phase Delta or Wye with no connection to neutral
Operating Voltage 200 ... 480 V AC Range Voltage Adjustment Range Line Frequency Line Voltage Max.
600 V AC
Line Frequency
50 or 60 Hz Automatically detected
Phase Loss
≥
25% Unbalance
Response Time ≤ 200ms
Undervoltage and Voltage Unbalance
Type Voltage detection with delayed trip & automatic reset
Overvoltage: 109 to 113% of the adjusted line voltage
≅
-3% of the trip voltage
Undervoltage: 88 ... 92% of the adjusted line voltage
≅
+3% of the trip voltage
Voltage Unbalance: Adjustable 2 ... 10%; or specify fixed unbalance of 2 ... 10% in 1% increments
≅
-0.7% Unbalance
Trip Delay Over/Undervoltage, Voltage Unbalance, Over/Under Frequency
Adjustable from 1 ... 30 s; or specify fixed delay 1 ... 30 s in 1 s increments
± 15%
Restart Delay Adjustable from 0.6 ... 300 s; if no restart delay is selected a 0.6 s initialization delay applies
± 15%
Over/Under Frequency ±4%; Reset ±3%; 50 or 60 Hz
Phase Sequence A, B, C, L1, L2, L3
Response Time
-Phase Reversal & Phase Loss
≤
200 ms
Reset Automatic
Output
Type Isolated Electromechanical Relay
Control Contact Form Single pole double throw (SPDT) (1 c/o)
Rating 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
Alarm Contact Form N.O. or N.C. SPST (selected in part number)
Rating 2 A resistive at 240 V AC
Life Mechanical -- 1 x 10
6
Electrical -- 1 x 30
3
Protection
Surge IEEE C62.41-1991 Level B
Isolation Voltage
≥
2500 V RMS input to output
Mechanical
Mounting Surface mount with 2 #8 (M4 x 0.7) screw or snap on 35mm DIN Rail
Note: 0.25 in.(6.35 mm) spacing between units or other devices is required
Package 4.33 x 2.95 x 1.97 in. (110 x 75 x 50 mm)
Termination Screw terminals with captive wire clamps for up to #14 AWG (2.5 mm 2 ) wire
IP 20 Touch Proof with removable covers installed
Environmental
Operating Temperature -40°C ... +60°C
Storage Temperature -40°C ... +85°C
Humidity 95% relative, non-condensing
Weight
≅
8.6 oz (244 g)
240 200 ... 240 V AC 50 or 60 Hz
380 340 ... 420 V AC 50 Hz
480 400 ... 480 V AC 60 Hz 550 V AC
600 500 ... 600 V AC 50 or 60 Hz 600 V AC
Trip Voltage
Reset Voltage
Trip Voltage
Reset Voltage
Trip Set Point
Reset on Balance
Active On
Range
Tolerance
Range
Tolerance
Trip / Reset
RC
RC
Inches (Millimeters)
RC = Removable Terminal Cover (2)