14 Technical data
Maschinenfabrik Reinhausen GmbH 2020 3836385142/08 EN ETOS
®
ED
14.5.3 Voltage measurement and current measurement
UI1 UI3
Measurement 1 phase 3-phase
Voltage measurement U
N
(RMS): 100VAC
Measuring range (RMS): 19.6...150V AC
Measuring accuracy (at U
N
, -25...+70°C): <±0.3%
Intrinsic consumption: <1VA
Measurement categoryIII in accordance with
IEC61010-2-30
Current measurement I
N
: 0.2 / 1 / 5A
Measuring range: 0.01...2.1·I
N
Overload capacity: 12.5A (continuous), 500A (for 1s)
Measuring accuracy (at I
N
, -25...+70°C): <±0.5%
Intrinsic consumption: <1VA
Phase angle Measuring accuracy (-25...+70°C): U
x
/I
x
<±0.5°; U
x
/
U
y
<±0.3°
Frequency measurement f
N
: 50 / 60Hz
Measuring range: 45...65Hz
Measuring accuracy (-25...+70°C): <±0.03%
Table142: Technical data for the UI1 and UI3 assemblies
Interface Pin Description
UI 1
UI 3
N L NC NC
N L1 L2 L3
N Voltage input for neutral conductor
L, L1 Voltage input for phase L (UI1) or L1 (UI3)
L2 Voltage input for phase L2 (UI3 only)
L3 Voltage input for phase L3 (UI3 only)
Table143: Voltage measurement
Interface Pin Description
k, k1 Current input for phase L (UI1) or L1 (UI3)
l, l1 Current output for phase L (UI1) or L1 (UI3)
k2 Current input for phase L2 (UI3 only)
l2 Current output for phase L2 (UI3 only)
k3 Current input for phase L3 (UI3 only)
l3 Current output for phase L3 (UI3 only)
Table144: Current measurement