Monitoring Relays True RMS 3-Phase, 3-Phase+N, Multi-function Type DPB71 TRMS 3-phase over and under voltage, phase sequence and phase loss monitoring relay Detects when all 3 phases are present and have the correct phase sequence Detects if all the 3-phase-phase or phase-neutral volt- ages are within the set limits Upper and lower limits separately adjustable Measures its own power supply Selection of measuring range by DIP-switches Adjustable voltage on relative scale Adjustable delay function (0.1 to 30 s) Output: 5 A SPDT relay N.E. For mounting on DIN-rail in accordance with DIN/EN 50 022 35.5 mm DIN-rail housing LED indication for relay, alarm and power supply ON Product Description Ordering Key DPB 71 C M23 3-phase or 3-phase+neutral Supply ranges from 208 to Housing line voltage monitoring relay 480 VAC covered by two Function for phase sequence, phase multivoltage relays. Type loss, over and under voltage 35.5 mm wide housing suit- Item number (separately adjustable set able both for back and front Output points) with built-in time panel mounting. Power supply delay function. Type Selection Mounting Output Supply: 208 to 240 VAC Supply: 380 to 480 VAC DIN-rail SPDT DPB 71 C M23 DPB 71 C M48 Input Specifications Output Specifications Input Output SPDT relay L1, L2, L3, N Terminals L1, L2, L3, N Rated insulation voltage 250 VAC Measures its own supply Contact ratings (AgSnO) 2 Note: Connect the neutral only Resistive loads AC 1 5 A 250 VAC if it is intrinsically at the star DC 12 5 A 24 VDC centre Small inductive loads AC 15 2.5 A 250 VAC Measuring ranges DC 13 2.5 A 24 VDC 208 to 240 VAC 177 to 275 VAC 6 Mechanical life 30 x 10 operations 380 to 480 VAC 323 to 550 VAC 5 Electrical life 10 operations Ranges (at 5 A, 250 V, cos = 1) Upper level +2 to +22% Operating frequency 7200 operations/h of the nominal voltage Dielectric strength Lower level -22 to -2% Dielectric voltage 2 kVAC (rms) of the nominal voltage Rated impulse withstand volt. 4 kV (1.2/50 s) Note: The input voltage must not exceed the maximum rated voltage or drop below Supply Specifications the minumum rated voltage Power supply Overvoltage cat. III reported above. Rated operational voltage (IEC 60664, IEC 60038) Hysteresis through terminals: L1, L2, L3, N Set points from 2 to 5% 1% M23 - Delta Voltage: 208 to 240 VAC 15% Set points from 5 to 22% 2% 45 to 65 Hz M48 - Delta Voltage: 380 to 480 VAC 15% 45 to 65 Hz M48 - Star Voltage: 220 to 277 VAC 15% 45 to 65 Hz Rated operational power DPB71CM23 13 VA 230 VAC, 50 Hz DPB71CM48 13 VA 400 VAC, 50 Hz Supplied by L1 and L3 Specifications are subject to change without notice (31.03.10) 1DPB71 General Specifications Power ON delay 1 s 0.5 s or 6 s 0.5 s Environment Degree of protection IP 20 Reaction time Pollution degree 3 Incorrect phase sequence or Operating temperature -20 to 60C, R.H. < 95% total phase loss < 200 ms Storage temperature -30 to 80C, R.H. < 95% Voltage level (input signal variation from -20% to +20% or from Housing +20% to -20% of set value) Dimensions 35.5 x 81 x 67.2 mm Alarm ON delay < 200 ms (delay < 0.1 s) Material PA66 o Noryl Alarm OFF delay < 200 ms (delay < 0.1 s) Weight Approx. 100 g Accuracy (15 min warm-up time) Screw terminals Temperature drift 1000 ppm/C Tightening torque Max. 0.5 Nm Delay ON alarm 10% on set value 50 ms according to IEC 60947 Repeatability 0.5% on full-scale Product standard EN 60947-5-1 Indication for Approvals UL, CSA Power supply ON LED, green CCC (GB14048.5) Alarm ON LED, red (flashing 2 Hz CE Marking L.V. Directive 2006/95/EC during delay time) EMC Directive 2004/108/EC Output relay ON LED, yellow EMC Immunity According to EN 61000-6-2 Emissions According to EN 61000-6-3 Mode of Operation Connected to the 3 phases or drops below the lower set Example 1 Example 2 (and neutral) DPB71 oper- level, the red LED starts (mains network monitoring) (load monitoring) ates when all 3 phases are flashing 2 Hz and the output The relay monitors over and The relay releases in case of present at the same time, relay releases after the set under voltage, phase loss interruption of one or more the phase sequence is cor- time period. If the phaseand correct phase phases, when one or more rect and the phase-phase (or sequence is wrong or one sequence. voltages drop below the phase-neutral) voltage levels phase is lost, the output lower set level or exceed the are within set limits. relay releases immediately. upper set level. Only 200 ms delay occurs. If one or more phase-phase The failure is indicated by or phase-neutral voltages the red LED flashing 5 Hz exceeds the upper set level during the alarm condition. Function/Range/Level and Time Delay Setting Adjust the input range set- as shown below. Centre knob: Lower knob: ting the DIP switches 3 and Setting of upper level on rel- Setting of delay on alarm 4 as shown below. Selection of level and time ative scale. time on absolute scale (0.1 Select the desired function delay: to 30 s). setting the DIP switches 1 Upper knob: Power ON delay and 2 as shown below. Setting of lower level on rel- ON: 6 s 0.5 s To access the DIP swiches ative scale. OFF: 1 s 0.5 s open the grey plastic cover Monitored voltage ON: Phase-Neutral OFF: Phase-Phase Measuring range SW3 ON ON OFF OFF SW4 ON OFF ON OFF M23 Ph-Ph 208 VAC 220 VAC 230 VAC 240 VAC Voltage M48 Ph-Ph 380 VAC 400 VAC 415 VAC 480 VAC Voltage M48 Ph-N 220 VAC 230 VAC 240 VAC 277 VAC Voltage 2 Specifications are subject to change without notice (31.03.10)