Datasheet

ManualsBrandsFINDER ManualsMonitoring & Safety Relays70.42.8.400.2032

II-2016, www.findernet.com

Electronic voltage monitoring relays for

single and three-phase applications

• Multifunctional types, providing the flexibility

of monitoring Undervoltage, Overvoltage,

Window Mode, Phase rotation, Phase loss

• Positive safety logic - Make output contact

opens if the relay detects an error

• All functions and values can be easily adjusted

by the selector and trimmer on front face

• “Blade + cross” – both flat blade and cross

head screw drivers can be used to adjust the

regulators and the function selector

• Colored LEDs for clear & immediate visual

indication

• 1 CO relay output, 6 or 10A

• Modular housing, 17.5 or 35mm wide

• 35mm rail (EN60715) mount

• Cd-free contact material

Screw terminal

70.11 70.31

Single-phase (220…240)V

voltage monitoring:

• Undervoltage

• Overvoltage

• Window mode (overvoltage +

undervoltage)

• Voltage fault memory

selectable

Three-phase (380…415)V

voltage monitoring:

• Undervoltage

• Overvoltage

• Window mode (overvoltage +

undervoltage)

• Voltage fault memory

selectable

• Phase loss, even under phase

regeneration

• Phase rotation

For outline drawing see page 10

Contact specification

Contact configuration 1 CO (SPDT) 1 CO (SPDT)

Rated current/Maximum peak current A 10/30 6/10

Rated voltage/

Max. switching voltage VAC 250/400 250/400

Rated load AC1 VA 2500 1500

Rated load AC15 VA 750 500

Single phase motor rating (230VAC) kW 0.5 0.185

Breaking capacity DC1: 30/110/220V A 10/0.3/0.12 6/0.2/0.12

Minimum switching load mW (V/mA) 300 (5/5) 500 (12/10)

Standard contact material AgNi AgNi

Supply specification

Nominal system voltage (U

) VAC (50/60Hz) 220…240 380…415

Rated power VA (50Hz)/W 2.6/0.8 11/0.9

Operating range VAC (50/60Hz) 130…280 220…510

Technical data

Electrical life at rated load AC1 cycles 80·10

60·10

Voltage detection level range V 170…270 300…480

Asymmetry detection level range % — —

Switch-off delay time (T on function diagrams) s 0.5…60 0.5…60

Switch-on lock-out time s 0.5 1

Switch-on hysteresis (H on function diagrams) V 5 (L-N) 10 (L-L)

Power-on activation time s ≈ 1 ≈ 1

Insulation between supply

and contacts (1.2/50µs) kV 4 4

Dielectric strength

between open contacts VAC 1000 1000

Ambient temperature °C –20…+60 –20…+60

Protection category IP 20 IP 20

Approvals (according to type)

SERIES

70 SERIES

Line monitoring relay

Summary of content (12 pages)

PAGE 1
70 SERIES Line monitoring relay 70 SERIES 70.11 Electronic voltage monitoring relays for single and three-phase applications 70.
PAGE 2
70 SERIES 70 SERIES Line monitoring relay 70.41 Electronic voltage monitoring relays for three-phase applications 70.
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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.
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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 .
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70 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 Undervoltage (UV and UVm functions) If the voltage moves out of limits, following delay T the output relay turns Off. When the voltage is again within limits (± the Switch-on hysteresis H): –– if set in the “without memory” position, the output relay “recovers”, i.e.
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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.
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0 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.
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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.
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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. II-2016, www.findernet.
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70 SERIES 70 SERIES Line monitoring relay Outline drawings 70.31 Screw terminal 70.41 Screw terminal 70.42 Screw terminal 70.61 Screw terminal 70.62 Screw terminal II-2016, www.findernet.com E 70.
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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, plastic, 72 tags, 6 x 12 mm for 70.11, 70.31, 70.41, 70.42 and 70.62 060.72 Sheet of marker tags (CEMBRE'S Thermal transfer printers) for relays types 70.11, 70.31, 70.41, 70.42 and 70.62 (48 tags), 6 x 12 mm 060.
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