Monitoring relays 10 A 71 SЕRIES Industrial motors Industrial refrigerators Elevators and lifts Textile machines Labelling machines Carousel warehouses
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71 SERIES Monitoring relays 10 A 71 SERIES 71.11.8.230.0010 1 - Phase 230 V Over & Under voltage monitoring relays 71.11.8.230.1010 71.11.8.230.0010 - Fixed Over & Under voltage detection - Link selectable 5 or 10 minute lock-out delay 71.11.8.230.
71 SERIES 71 SERIES Monitoring relays 10 A 71.31.8.400.1010 3 - Phase 400 V Over & Under voltage monitoring relay 71.31.8.400.
71 SERIES Monitoring relays 10 A 71 SERIES 71.31.8.400.1021 3 - Phase 400 V - Line monitoring relays 71.31.8.400.2000 71.31.8.400.1021 - Over & Under voltage trip on-delay - Fault memory 71.31.8.400.
71 SERIES 71 SERIES Monitoring relays 10 A 71.41.8.230.1021 Universal voltage or current detecting and monitoring relay 71.51.8.230.1021 71.41.8.230.1021 - Voltage monitoring 71.51.8.230.
1 SERIES Monitoring relays 10 A 71 SERIES 71.91.x.xxx.0300 Thermistor temperature sensing relays for industrial applications 71.92.x.xxx.0001 71.91 - 1 Pole, without fault memory 71.
71 SERIES 71 SERIES Monitoring relays 10 A Ordering information Example: Universal voltage monitoring relay with LCD display for AC/DC voltage detection, 1 CO (SPDT) contact rated 10 A 250 V, supply voltage 230 V, programmable delay time and fault memory. 7 1 . 4 Series Type 1 = 1 phase AC line monitoring 3 = 3 phase AC line monitoring 4 = AC/DC universal- Voltage detection 5 = AC/DC universal- Current detection 9 = Thermistor relay (temperature monitoring with PTC thermistor) No.
71 SERIES Monitoring relays 10 A 71 SERIES Technical data Insulation Insulation according to EN 61810-1 insulation rated voltage rated impulse withstand voltage V 250 kV 4 pollution degree 3 over-voltage category III V AC 2500 kV (1.
X-2017，www.findernet.com 71.11.8.230.0010 E 71.11.8.230.1010 71.31.8.400.1010 71.31.8.400.1021 71.31.8.400.2000 71.41.8.230.1021 Current transformer 10 • • 71.51.8.230.1021 71.91.0.024.0300 71.91.8.230.0300 71.92.0.024.0001 71.92.8.230.0001 • • • • • • 1 CO SPDT • • • • 1 CO SPDT • • • • • 1 CO SPDT • • • • 1 CO SPDT • • 1 CO SPDT • • 1 CO SPDT • • 1 CO SPDT • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Module width Relay contact, 250 V AC/10 A 22.
71 SERIES Monitoring relays 10 A 71 SERIES Explanation of relay marking and LED/LCD display Monitoring relay without LCD-display ON LED green steady light: supply voltage is on and measuring system is active. DEF Default: the detected value is outside of the acceptable range (asymmetric is shown by the LED ASY). LED red flashing: delay time is running, see the function diagram. LED red steady light: output relay is off, contact 11-14 (6-2) is open. Phase asymmtery is outside of the predefined range.
71 SERIES 71 SERIES Monitoring relays 10 A LED/LCD status announcement/advice Type 71.11.8.230.0010 71.11.8.230.1010 71.31.8.400.1010 Starting mode After connecting T = 5 or 10 min 11-14 open 71.31.8.400.
71 SERIES Monitoring relays 10 A 71 SERIES Functions Type 71.11.8.230.0010 Switch off Immediately if monitored value is outside of the set points. Fixed limits Switch on After expiry of the time T and if monitored value is within the set points. C = output contact Normally open 11-14 (6-2) closed. Switch off Immediately if monitored value is outside of the set points. Type 71.11.8.230.1010 Switch on After expiry of the time T and if monitored value is within the set points.
71 SERIES Monitoring relays 10 A 71 SERIES Functions Type 71.31.8.400.2000 Switch off Phase asymmetry Incorrect phase rotation Phase loss U= 400 V AC 3 ~ (50/60 Hz ) L1 L2 L3 A1 1 3 A2 5 7 A3 9 LED • ASY yellow Phase asymmetry LED • DEF red Voltage to A1 (1) and/or A2 (5) > 1.11 UN 3~U ASY 2 4 14 12 6 8 11 LED • ON green Monitoring system is active and 400 V supply voltage is connected to 1-5 or A1-A2. 10 C = output contact Normally open 11-14 (6-2) closed.
71 SERIES Monitoring relays 10 A 71 SERIES Functions Type 71.51.8.230.1021 Switch off ILo – mode If the monitored value is less than the lower-limit and, time T1 has expired. Programmable IUp – mode If the monitored value is higher than the upper limit, and time T1 has expired. MEMORY ON MEMORY OFF ILo IUp – mode If the monitored value of voltage is outside of the upper or lower limits, and time T1 has expired.
71 SERIES 71 SERIES Monitoring relays 10 A Functions Switch off ––Thermistor line break ––Over temperature RPTC > (2.5…3.6)kΩ, ––Thermistor line short circuit (RPTC < 20 Ω) ––Loss of supply Type 71.92.x.xxx.0001 MEMORY OFF Switch on Temperature within limits (20 Ω…2.5 kΩ) on power-up. RPTC > (1…1.5)kΩ on cooling. MEMORY ON Select MEMORY OFF If monitored value is expected to cross the resetting threshold.
