Iskra MT440 - 6.3 Inputs; 6.4 Connection

Technicaldata
User’sManual 35
6.3 Inputs
Voltage input
Nominal range values 62.5, 125, 250, 500 V
LN
Nominal voltage(U
N
) 500 V
LN
Minimal measurement 2 V sinusoidal
Frequency range 50/60, 400 Hz
Max. measured value (cont.) 600 V
LN
; 1000 V
LL
Max. allowed value 2 × U
N
; 10 s
(acc. to IEC/EN 60 688)
Consumption
< U
2
/ 3.3M
Ω
per phase
Input impedance
3.3M
Ω
per phase
Current input
Nominal range values 1, 5, 10 A
Nominal current (I
N
) 5 A
Min. measurement Settings from starting current for all
powers
*
Frequency range 50/60, 400 Hz
Max. measured value 12.5 A sinusoidal
Max. allowed value (thermal) 15 A cont.
(acc. to IEC/EN 60 688) 20 × I
N
; 5 × 1s
Consumption
< I
2
× 0.01
Ω
per phase
Frequency
Nominal frequency (f
N
) 50, 60, 400 Hz
Measuring range 16 … 400 Hz**
Power supply
Universal Nominal voltage AC 40 … 276 V
Nominal frequency 45 … 65 Hz
Nominal voltage DC 24 … 300 V
Consumption < 8VA
Power-on transient current < 20 A; 1 ms
* Starting current is set by setting software MiQen/settings/general
** For frequency measurement only
6.4 Connection
Permitted conductor cross-sections
Terminals Max. conductor cross-sections
Voltage inputs (4) 2,5 mm
2
with pin terminal
4 mm
2
solid wire
Current inputs (6) 2,5 mm
2
with pin terminal
4 mm
2
solid wire
Supply (2) 2,5 mm
2
with pin terminal
4 mm
2
solid wire
Modules & Com (8 + 3) 2,5 mm
2
with pin terminal
4 mm
2
solid wire