Monitoring Relays 1-Phase True RMS AC/DC Over and Under Voltage Types DUC01, PUC01 TRMS AC/DC over+under, over+over or under+under voltage monitoring relays Selection of measuring range by DIP-switches Measuring ranges from 2 to 500 V AC/DC Adjustable voltage on relative scale Adjustable hysteresis on relative scale Adjustable delay function (0.1 to 30 s) Programmable latching or inhibit at set level Output: 1 or 2 x 8 A SPDT relay N.D. or N.E. selectable For mounting on DIN-rail in accordance with DIN/EN 50 022 (DUC01) or plug-in module (PUC01) 45 mm Euronorm housing (DUC01) or 36 mm plug-in module (PUC01) DUC01 PUC01 LED indication for relay, alarm and power supply ON Galvanically separated power supply Product Description Ordering Key DUC 01 D B23 500V DUC01 and PUC01 are pre- Owing to the built-in latch Housing cise TRMS AC/DC function, the ON-position of Function over+under, over+over or the relay output can be Type under+under voltage maintained. Inhibit function Item number (selectable by DIP-switch) can be used to avoid relay Output monitoring relays. The volt- operation when not desired Power supply age levels are adjustable (maintenance, transitions). Range separately and have their The LED s indicate the state own time delay. of the alarm and the output relay. Type Selection Mounting Output Supply: 24 to 48 VAC/DC Supply: 115/230 VAC DIN-rail 2xSPDT DUC 01 D D48 500V DUC 01 D B23 500V Plug-in SPDT PUC 01 C D48 500V PUC 01 C B23 500V Input Specifications Output Specifications Input (voltage level) Output 2 x SPDT relays (DUC01) DUC01 Terminals Y1, Y2 1 x SPDT relays (PUC01) PUC01 Terminals 5, 7 Rated insulation voltage 250 VAC Measuring ranges Contact ratings (AgSnO2) Direct Internal resist. Max. volt. Resistive loads AC 1 8 A 250 VAC Selectable by DIP-switch DC 12 5 A 24 VDC 2 to 20 V AC/DC > 500 k 350 V Small inductive loads AC 15 2.5 A 250 VAC 5 to 50 V AC/DC > 500 k 350 V DC 13 2.5 A 24 VDC 6 20 to 200 V AC/DC > 500 k 600 V Mechanical life 30 x 10 operations 50 to 500 V AC/DC > 500 k 600 V 5 Electrical life 10 operations (at 8 A, 250 V, cos = 1) Max. voltage for 1 s 1000 V Operating frequency 7200 operations/h Note: Dielectric strength The input voltage cannot Dielectric voltage 2 kVAC (rms) raise over 300 VAC/DC Rated impulse withstand volt. 4 kV (1.2/50 s) with respect to ground (PUC01 only) Contact input DUC01 Terminals Z1, Y1 PUC01 Terminals 8, 9 Disabled > 10 k Enabled < 500 Latch disable > 500 ms Specifications are subject to change without notice (10.06.10) 1DUC01, PUC01 Supply Specifications General Specifications (cont.) Power supply Overvoltage cat. III Indication for Rated operational voltage (IEC 60664, IEC 60038) Power supply ON LED, green through terminals: Alarm ON LED, red (flashing 2 Hz A1, A2 or A3, A2 (DUC01) during delay time) 2, 10 or 11, 10 (PUC01) Output relay ON 1 or 2 x LED, yellow D48: 24 to 48 VAC 15% Environment (EN 60529) 45 to 65 Hz, insulated Degree of protection IP 20 B23: 115/230 VAC 15% Pollution degree 3 (DUC01), 2 (PUC01) 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 DUC01 45 x 80 x 99.5 mm Input to output 4 kV 4 kV PUC01 36 x 80 x 94 mm Rated operational power Material PA66 or Noryl AC 5 VA Weight Approx. 250 g DC 3 W Screw terminals Tightening torque Max. 0.5 Nm acc. to IEC 60947 Product standard EN 60255-6 General Specifications Approvals UL, CSA Power ON delay 1 s 0.5 s or 6 s 0.5 s CE Marking L.V. Directive 2006/95/EC Reaction time (input signal variation from EMC Directive 2004/108/EC -20% to +20% or from EMC +20% to -20% of set value) Immunity According to EN 60255-26 Alarm ON delay < 100 ms According to EN 61000-6-2 Alarm OFF delay < 100 ms Emissions According to EN 60255-26 According to EN 61000-6-3 Accuracy (15 min warm-up time) Temperature drift 1000 ppm/C Delay ON alarm 10% on set value 50 ms Repeatability 0.5% on full-scale Mode of Operation DUC01 and PUC01 monitor hysteresis is the same for and latches when the volt- Example 3 both AC and DC both set levels). age drops below the respec- (inhibit enable active - over+ over+under, over+over or PUC01: The relay operates tive set level for more than over voltage - DPDT relay under+under voltage. when the voltage drops the respective delay time. (1 x SPDT for PUC01)) below the under voltage set Provided that the voltage Example 1 level for more than the has exceeded the respective Provided that the contact (no contact input - respective set delay time or set level (see hysteresis), input is opened, the relay under+over voltage - 2 x when it exceeds the over each relay releases when the operates when the voltage SPDT relays (1 x SPDT for voltage set level for more contact inputs connection is exceeds the lower set level PUC01)) than the respective set delay interrupted. for more than the respective time. The relay releases delay time. It releases when DUC01: One relay operates PUC01: The relay operates when the voltage exceeds the voltage drops below the when the voltage drops when the voltage drops the under voltage set level lower set level (see hystere- below the under voltage set below the higher set level for plus hysteresis and it drops sis) or when the contact point for more than the more than the respective below the over voltage set inputs pins are connected. respective delay time. It delay time. Provided that the level minus hysteresis (the releases when the voltage voltage has exceeded the hysteresis is the same for Note: exceeds the set level plus respective set level plus hys- both set levels). When the inhibit contact is the set hysteresis. The other teresis, the relay releases opened, if the input signal is relay operates when the when the contact input is Example 2 already in alarm position, the voltage exceeds the over opened. (latch enabled active - delay time needs to elapse voltage set point for more under+ under voltage - 2 x before relay(s) activation. than the respective delay SPDT relays (1 x SPDT for time. It releases when the PUC01)) voltage drops below the set level minus hysteresis (the DUC01: Each relay operates 2 Specifications are subject to change without notice (10.06.10)