Datasheet

ManualsBrandsFINDER ManualsMonitoring & Safety Relays70.31.8.400.2022

70.11 70.31 70.41

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,

Asymmetry and Neutral 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

1 CO (SPDT) 1 CO (SPDT) 1 CO (SPDT)

10 / 30 6 / 10 6 / 10

250 / 400 250 / 400 250 / 400

2,500 1,500 1,500

750 500 500

0.5 0.185 0.185

10 / 0.3 / 0.12 6 / 0.2 / 0.12 6 / 0.2 / 0.12

300 (5 / 5) 500 (12 / 10) 500 (12 / 10)

AgNi AgNi AgNi

220…240 380…415 380…415

2.6 / 0.8 11 / 0.9 11/ 0.9

130…280 220…510 220…510

80 · 10

60 · 10

170…270 300…480 300…480

— — 4...25

0.5...60 0.5...60 0.5...60

0.5 1 1

5 (L-N) 10 (L-L) 10 (L-L)

≈ 1 ≈ 1 ≈ 1

444

1,000 1,000 1,000

–20…+50 –20…+50 –20…+50

IP20 IP20 IP20

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

• Phase rotation

Three-phase (380...415 V,

with or without neutral)

voltage monitoring:

• Window mode (overvoltage

+ undervoltage)

• Phase loss

• Phase rotation

• Asymmetry

• Neutral loss selectable

Contact specification

Contact configuration

Rated current/Maximum peak current A

Rated voltage/Max. switching voltage V AC

Rated load AC1 VA

Rated load AC15 VA

Single phase motor rating (230 V AC) kW

Breaking capacity DC1: 30/110/220 V A

Minimum switching load mW (V/mA)

Standard contact material

Supply specification

Nominal system voltage (U

) V AC (50/60 Hz)

Rated power VA (50 Hz) / W

Operating range V AC (50/60 Hz)

Technical data

Electrical life at rated load AC1 cycles

Voltage detection level range V

Asymmetry detection level range %

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

Switch-on lock-out time s

Switch-on hysteresis (H on function diagrams) V

Power-on activation time s

Insulation between supply and contacts (1.2/50 μs) kV

Dielectric strength between open contacts V AC

Ambient temperature °C

Protection category

Approvals (according to type)

Features

70 Series - Line monitoring relay

IX-2012, www.findernet.com

Screw terminal

For outline drawing see page 8

Summary of content (10 pages)

PAGE 1
70 Series - Line monitoring relay Features 70.11 70.31 70.41 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, Asymmetry and Neutral 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 Single-phase (220...
PAGE 2
70 Series - Line monitoring relay Features 70.61 Electronic phase loss and rotation monitoring relay for three-phase applications 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 • 1 CO relay output, 6 A • Compact size (17.
PAGE 3
70 Series - Line monitoring relay Ordering information Example: 70 series, three-phase voltage monitoring relay, 1 output , supply voltage 380…415 V AC. A 7 0 . 3 1 . 8 . 4 0 0 . 2 B C D 0 2 2 D: Fault memory option 0 = No fault memory 2 = Fault memory function selectable Series Type 1=1 3=3 4=3 6=3 phase phase phase phase AC line monitoring AC line monitoring + neutral AC line monitoring loss and rotation monitoring No.
PAGE 4
70 Series - Line monitoring relay 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 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.
PAGE 5
70 Series - Line monitoring relay Functions Output relay On (NO closed) when all OK: positive logic. Type 70.31 70.41 70.61 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. For type 70.61: Phase loss monitoring possible even under regeneration up to 80% of the average of the other 2 phases. Type 70.
PAGE 6
70 Series - Line monitoring relay 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 N = With N-line monitoring N = Without N-line monitoring Toff delay: (0.5...60) sec UMax: (380...480) V UMax: (380...480) V UMax: (220...270) V UMin: (300...400) V UMin: (170...230) V Toff delay: (0.5...60) sec (4...25) % UN UMin: (300...400) V Toff delay: (0.5...60) sec LED indication Monitoring relay Type 70.11.8.230.
PAGE 7
0 Series - Line monitoring relay Wiring diagrams L L1 L2 L3 N Type 70.31 Type 70.11 L1 L1 L2 L3 N L2 L3 Type 70.41 Type 70.61 Application example IX-2012, www.findernet.com The output contact switches the coil of the line contactor.
PAGE 8
70 Series - Line monitoring relay Outline drawings 70.31 Screw terminal 60.8 45 30.5 88.8 33.8 35 84 70.11 Screw terminal 70.41 Screw terminal 70.61 Screw terminal 84 45 34.8 60.8 IX-2012, www.findernet.com 28.7 87 45 17.5 84 33.8 60.8 30.5 88.
PAGE 9
70 Series - Line monitoring relay 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 and 70.41 011.01 Sheet of marker tags, plastic, 72 tags, 6x12 mm for 70.11, 70.31 and 70.41 060.72 Sheet of marker tags, plastic, 24 tags, 9x17 mm for 70.61 020.24 Identification tag, plastic, 1 tag, 17x25.5 mm for 70.11, 70.31 and 70.41 019.01 Separator for rail mounting, plastic, 3 mm wide 020.03 020.01 011.
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