Protects against Phase Loss, Phase Reversal & Phase Asymmetry Can be configured for 3 Phase 4 Wire or 1 Phase system Selectable Over Voltage / Under Voltage Trip level Selectable Time Delay LED Indications for Power and Fault conditions Voltage Sensing principle 1 C/O or 2 C/O Configuration Voltage Monitoring Series SM 500 83 Cat. No. Parameters 240 VAC (1 Phase & 3 Phase, 4 Wire) Frequency Power Consumption (Max.) 4 VA 50/60 Hz Supply Voltage ( ) 105% to 125% (of ) 55% to 95% (of ) LED Indication Operating Temperature Storage Temperature Separate indications for Power ON, UV and OV O O -15 C To + 55 C O O -25 C To + 70 C Utilization Category AC - 15 DC - 13 Rated Voltage (Ue): 120/240 V, Rated Current (Ie): 3.0/1.5 A Rated Voltage (Ue): 24/125/250 V, Rated Current (Ie): 2.0/0.22/0.1 A Trip Settings Under Voltage Phase Loss Phase Sequence Phase Asymmetry Over Voltage 0.5 to 15 s (Selectable) 5 s 0.5 to 15 s (Selectable) 5 s 5 s 0.5 s to 15 min (Selectable) Time Delay ON Delay Trip Time (OFF Delay) Output Contact Rating Electrical Life Mechanical Life Relay Output 5A @ 250 VAC / 28 VDC (Resistive) 5 1X10 6 3X10 1 C/O Enclosure Dimension (W x H x D) (in mm) Weight (unpacked) Approx. Mounting Certification Flame Retardant UL 94-V0 36 X 90 X 60 120 g Base / DIN rail Degree of Protection IP 20 for Terminals, IP 40 for Enclosure ORDERING INFORMATION Note: 1) Voltage setting is with respect to Neutral. Voltage Setting Accuracy: �± 5 % of Full Scale; Time Setting Accuracy: �± 10 % of Full Scale RoHS Compliant Humidity (Non Condensing) 95% (Rh) EMI / EMC Harmonic Current Emissions IEC 61000-3-2 Ed. 3.2 (2009-04) Class A ESD IEC 61000-4-2 Ed. 2.0 (2008-12) Level II Radiated Susceptibility IEC 61000-4-3 Ed. 3.2 (2010-04) Level III Electrical Fast Transients IEC 61000-4-4 Ed. 3.0 (2012-04) Level IV Surges IEC 61000-4-5 Ed. 2.0 (2005-11) Level IV Conducted Susceptibility IEC 61000-4-6 Ed. 3.0 (2008-10) Level III Voltage Dips & Interruptions (AC) IEC 61000-4-11 Ed. 2.0 (2004-03) All 7 Levels Conducted Emission CISPR 14-1 Ed. 5.2 (2011-11) Class A Radiated Emission CISPR 14-1 Ed. 5.2 (2011-11) Class A Environmental Cold Heat IEC 60068-2-1 Ed. 6.0 (2007-03) Dry Heat IEC 60068-2-2 Ed. 5.0 (2007-07) Vibration IEC 60068-2-6 Ed. 7.0 (2007-12) 5g Repetitive Shock IEC 60068-2-27 Ed. 4.0 (2008-02) 40g, 6ms Non-Repetitive Shock IEC 60068-2-27 Ed. 4.0 (2008-02) 30g, 15ms Cat. No. Description MD71BH 240 VAC, UV / OV with Selectable ON Delay (0.5 to 15 sec), 1 C/O MD71BF 240 VAC, UV / OV with Selectable OFF Delay (0.5 to 15 sec), 1 C/O MD71B9 240 VAC, UV / OV with Selectable ON Delay (0.5 s to 15 min), 1 C/O