Monitoring Relays 1-Phase AC/DC Over Voltage - AC Over Current Types DUA01, PUA01 AC/DC over voltage monitoring relay Selection of measuring range by DIP-switches Measuring ranges: 2 to 20 VAC/DC, 5 to 50 VAC/DC, 20 to 200 VAC/DC, 50 to 500 VAC/DC, 0.4 to 4 Vp AC Adjustable voltage limit on relative scale Adjustable hysteresis Programmable latching at set level Output: 8 A SPDT relay normally de-energized For mounting on DIN-rail in accordance with DIN/EN 50 022 (DUA01) or plug-in module (PUA01) 22.5 mm Euronorm housing (DUA01) or 36 mm plug-in module (PUA01) LED indication for relay and power supply ON DUA01 PUA01 Galvanically separated power supply Product Description Ordering Key DUA 01 C B23 500V DUA01 and PUA01 are pre- transformers. Housing cise AC/DC over voltage Owing to the built-in latch Function monitoring relays. They can function, the ON-position of Type also be used as 1-phase or the relay output can be Item number 3-phase over current moni- maintained. Output toring relays when connect- The red LED indicates the Power supply ed with MI or MP current alarm status. Range Type Selection Mounting Output Supply: 24 to 48 VAC/DC Supply: 115/230 VAC DIN-rail SPDT DUA 01 C D48 500V DUA 01 C B23 500V Plug-in SPDT PUA 01 C D48 500V PUA 01 C B23 500V Input Specifications Output Specifications Input (voltage level) Output SPDT relay DUA01 Terminals Y1, Y2 Rated insulation voltage 250 VAC PUA01 Terminals 5, 7 Contact ratings (AgSnO) 2 Measuring ranges Resistive loads AC 1 8 A 250 VAC Direct Int. resist. Max. volt. DC 12 5 A 24 VDC Selectable by DIP-switches Small inductive loads AC 15 2.5 A 250 VAC 2 to 20 VAC/DC > 500 k 600 V DC 13 2.5 A 24 VDC 5 to 50 VAC/DC > 500 k 600 V 6 Mechanical life 30 x 10 operations 20 to 200 VAC/DC > 500 k 600 V 5 Electrical life 10 operations 50 to 500 VAC/DC > 500 k 600 V (at 8 A, 250 V, cos = 1) 0.4 to 4 V AC > 500 k 600 V p Operating frequency 7200 operations/h Max. voltage for 1 s 1000 V MI and MP CT ranges AAC rms Max. curr. Dielectric strength 1-ph.: 3-ph.: Dielectric voltage 2 kVAC (rms) MI 5 MP 3005 0.5 to 5 A 20 AAC Rated impulse withstand volt. 4 kV (1.2/50 s) MI 20 MP 3020 2 to 20 A 50 AAC MI 100 MP 3100 10 to 100 A 250 AAC MI 500 MP 3500 50 to 500 A 750 AAC Note: The input voltage cannot raise over 300 VAC/DC with respect to ground (PUA01 only) Contact input DUA01 Terminals Z1, Y1 PUA01 Terminals 8, 9 Disabled > 10 k Enabled < 500 Latch disable > 500 ms Specifications are subject to change without notice (22.01.13) 1DUA01, PUA01 Supply Specifications General Specifications (cont.) Power supply Overvoltage cat. III Accuracy (15 min warm-up time) Rated operational voltage (IEC 60664, IEC 60038) Temperature drift 1000 ppm/C through terminals: Repeatability 0.5% on full-scale A1, A2 or A3, A2 (DUA01) Indication for 2, 10 or 11, 10 (PUA01) Power supply ON LED, green Output relay ON LED, red D48: 24 to 48 VAC/DC 15% Environment (EN 60529) 45 to 65 Hz, insulated Degree of protection IP 20 B23: 115/230 VAC 15% Pollution degree 3 (DUA01), 2 (PUA01) 45 to 65 Hz, insulated Operating temperature -20 to 60C, R.H. < 95% Dielectric voltage DC supply AC supply Storage temperature -30 to 80C, R.H. < 95% Supply to input 2 kV 4 kV Housing Supply to output 4 kV 4 kV Dimensions DUA01 22.5 x 80 x 99.5 mm Input to output 4 kV 4 kV PUA01 36 x 80 x 94 mm Rated operational power Material PA66 or Noryl AC 4 VA Weight Approx. 150 g DC 2 W Screw terminals Tightening torque Max. 0.5 Nm acc. to IEC 60947 Product standard EN 60255-6 General Specifications Approvals UL, CSA Reaction time CE Marking L.V. Directive 2006/95/EC Alarm ON delay < 100 ms EMC Directive 2004/108/EC (voltage rising from EMC -20% to +20% set value) Immunity According to EN 60255-26 Alarm OFF delay < 300 ms According to EN 61000-6-2 (voltage decreasing from Emissions According to EN 60255-26 +20% to -20% set value) According to EN 61000-6-3 Mode of Operation Range - Level Setting DUA01 and PUA01 monitor Adjust the measuring range Example 2 (MI CT) Centre knob: both AC and DC over volt- setting the DIP switches 1 to (no connection between ter- Setting of voltage on relative age. When connected with 4 as shown below. minals Z1, Y1 or 8, 9) scale: from 10 to 110% of MI or MP current trans- To access the DIP switches The relay operates when the the full-scale value. former (using the 0.4 - 4 V open the grey plastic cover p current flowing through the range) they can monitor 1- using a screwdriver as CT exceeds the set level. It Hysteresis: phase or 3-phase AC cur- shown below. releases when the current Approx. 4% of set value, it rents up to 500 A. drops min. 4% below the set can be extended by insert- level (see hysteresis) or ing a resistor between termi- Example 1 when power supply is inter- nals Z1, Y1 or 8, 9. (connection between termi- rupted. nals Z1, Y1 or 8, 9 - latch Approx. resistor values: function enabled) Example 3 (MP CT) 10%: 180 k The relay operates and (no connection between ter- 25%: 47 k latches in operating position minals Z1, Y1 or 8, 9 - latch 50%: 22 k when the measured value function disabled) 75%: 15 k exceeds the set level. Pro- The relay operates when the Latch: < 500 vided that the voltage has maximum current flowing Measuring range dropped min. 4% below the through the CT exceeds the set point (see hysteresis), set level. It releases when OFF ON OFF OFF 0.4 to 4 V p the relay releases when the the maximum current drops ON OFF OFF OFF 2 to 20 VAC/DC interconnection between ter- min. 4% below the set level OFF OFF OFF OFF 5 to 50 VAC/DC minals Z1, Y1 or 8, 9 is inter- (see hysteresis) or when ON OFF ON OFF 20 to 200 VAC/DC rupted or the power supply power supply is interrupted. ON OFF OFF ON 50 to 500 VAC/DC is interrupted as well. 2 Specifications are subject to change without notice (22.01.13)