Line monitoring relay 70 SЕRIES Air conditioners Woodprocessing machines Hoists and cranes Escalators Control panels for pumps Forced-air ventilators
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70 SERIES Line monitoring relay 70 SERIES 70.11 Electronic voltage monitoring relays for single and three-phase applications 70.
70 SERIES 70 SERIES Line monitoring relay 70.41 Electronic voltage monitoring relays for three-phase applications 70.
70 SERIES Line monitoring relay 70 SERIES 70.61 Electronic phase loss and rotation monitoring relays for three-phase applications 70.62 • Universal voltage monitoring (UN from 208 V to 480 V, 50/60 Hz) • Phase loss monitoring, even under phase regeneration • Positive safety logic - Make contact opens if the relay detects an error • 2 versions: 1 CO relay output, 6 A (17.5 mm wide), and 2 CO relay output, 8 A (22.
70 SERIES Line monitoring relay 70 SERIES Ordering information Example: 70 series, three-phase voltage monitoring relay, 1 output, supply voltage 380…415 V AC. A 7 0 . 3 B C D 1 . 8 . 4 0 0 . 2 . 0 . 2 .
0 SERIES Line monitoring relay 70 SERIES Functions Output relay On (NO closed) when all OK: positive logic. Overvoltage (OV and OVm functions) With memory Without Memory Type 70.11 70.31 70.42 Red LED Green LED Red LED Undervoltage (UV and UVm functions) With memory Without Memory Type 70.11 70.31 70.42 Green LED Functions = Output contact (11-14, 21-24 for 70.
70 SERIES Line monitoring relay 70 SERIES Functions Output relay On (NO closed) when all OK: positive logic. Type 70.31 70.41 70.42 70.61 70.62 Phase loss and phase rotation If the sequence (L1, L2, L3) is incorrect at power-on, the output relay will not turn-on. If a phase is lost, the output relay turns off immediately. When the phase is again active, the output relay turns on immediately. Phase loss monitoring possible even under regeneration up to 80% of the average of the other 2 phases. (for 70.
70 SERIES Line monitoring relay 70 SERIES Front view: function selector and regulators 70.11 70.31 70.41 Functions: OV, OVm, UV, UVm, W, Wm Functions: OV, OVm, UV, UVm, W, Wm Toff delay: (0.5…60)sec UMax: (380…480)V UMax: (220…270)V UMin: (300…400)V UMin: (170…230)V Toff delay: (0.5…60) sec N= With N-line monitoring N= Without N-line monitoring UMax: (380…480)V (4…25)% UN UMin: (300…400)V Toff delay: (0.5…60)sec 70.
70 SERIES 70 SERIES Line monitoring relay LED indication Monitoring relay Type 70.11.8.230.2022 LED Supply system normal Supply system abnormal (Voltage out of limits, switch-off delay time T running) Supply system abnormal (Reason for switch-off, RESET necessary when ”with Memory”* is selected) Contact 11 - 14 closed Contact 11 - 14 closed Contact 11-14 open • Overvoltage OV and OVm • Undervoltage UV and UVm With Memory, following a failure a manual “RESET” ** is necessary 70.31.8.400.
70 SERIES Line monitoring relay 70 SERIES Wiring diagrams L N L1 L2 L3 L1 L2 L3 N Type 70.11 L1 L2 L3 N Type 70.31 L1 L2 L3 Type 70.42 Type 70.41 E L1 L2 L3 Type 70.61 Type 70.62 Application example The output contact switches the coil of the line contactor. XI-2016, www.findernet.
70 SERIES 70 SERIES Line monitoring relay Outline drawings 70.61 Screw terminal 70.62 Screw terminal 22.5 4.3 96 XI-2016, www.findernet.com 30.6 78.8 70.42 Screw terminal 59.5 70.41 Screw terminal 33.8 70.31 Screw terminal 86.2 E 70.
70 SERIES Line monitoring relay 70 SERIES Accessories Adaptor for panel mounting, plastic, 17.5 mm wide for 70.11 and 70.61 020.01 Adaptor for panel mounting, plastic, 35 mm wide for 70.31, 70.42 and 70.41 011.01 Sheet of marker tags (CEMBRE Thermal transfer printers) for relays types 70.11, 70.31, 70.41, 70.42 and 70.62 (48 tags), 6 x 12 mm 060.48 Sheet of marker tags, plastic, 24 tags, 9 x 17 mm for 70.61 020.24 Identification tag, plastic, 1 tag, 17 x 25.5 mm for 70.11, 70.31, 70.42 and 70.
