Datasheet

II-2016, www.findernet.com
E
Electronic voltage monitoring relays for
three-phase applications
• Multifunctional types, providing the flexibility
of monitoring Undervoltage, Overvoltage,
Window Mode, Phase rotation, Phase loss,
Asymmetry and Neutral loss
• Phase loss monitoring, even under phase
regeneration
• 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 or 2 CO relay output, 6 or 8A
• Modular housing, 35mm wide
• 35mm rail (EN60715) mount
• Cd-free contact material
Screw terminal
70.41 70.42
Three-phase (380…415V, with
or without neutral) voltage
monitoring:
• Window mode (overvoltage +
undervoltage)
• Phase loss
• Phase rotation
• Asymmetry
• Neutral loss selectable
Three-phase (380…415V,
with neutral) voltage
monitoring:
• Undervoltage
• Overvoltage
• Window mode (overvoltage +
undervoltage)
• Voltage fault memory
selectable
• Phase loss
• Phase rotation
• Asymmetry
• Neutral loss
For outline drawing see page 10
Contact specification
Contact configuration 1 CO (SPDT) 2 CO (DPDT)
Rated current/Maximum peak current A 6/10 8/15
Rated voltage/
Max. switching voltage VAC 250/400 250/400
Rated load AC1 VA 1500 2000
Rated load AC15 VA 500 400
Single phase motor rating (230VAC) kW 0.185 0.3
Breaking capacity DC1: 30/110/220V A 6/0.2/0.12 8/0.3/0.12
Minimum switching load mW (V/mA) 500 (12/10) 300 (5/5)
Standard contact material AgNi AgNi
Supply specification
Nominal system voltage (U
N
) VAC (50/60Hz) 380…415 380…415
Rated power VA (50Hz)/W 11/0.9 12.5/1
Operating range VAC (50/60Hz) 220…510 220…510
Technical data
Electrical life at rated load AC1 cycles 60·10
3
60·10
3
Voltage detection level range V 300…480 300…480
Asymmetry detection level range % 4…25 5…25
Switch-off delay time (T on function diagrams) s 0.5…60 0.5…60
Switch-on lock-out time s 1 1
Switch-on hysteresis (H on function diagrams) V 10 (L-L) 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)
2
70 SERIES
Line monitoring relay
70
SERIES