janitza UMG 512-Pro, User Manual And Technical Data

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UMG 512-PRO www.janitza.com
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Connecting capacity of the terminals (voltage measurement)
Connectible conductors. Only connect one conductor per terminal point!
Single core, multi-core, fine-stranded
0.2 - 4 mm
2
, AWG 28-12
Wire ferrules (non-insulated) 0.2 - 2.5 mm
2
, AWG 26-14
Wire ferrules (insulated) 0.2 - 2.5 mm
2
, AWG 26-14
Tightening torque 0.4 - 0.5 Nm (3.54 - 4.43 lbf in)
Strip length 7 mm (0.2756 in)
Connecting capacity of the terminals (current measurement)
Connectible conductors. Only connect one conductor per terminal point!
Single core, multi-core, fine-stranded
0.2 - 4 mm
2
, AWG 28-12
Wire ferrules (non-insulated) 0.2 - 4 mm
2
, AWG 26-12
Wire ferrules (insulated) 0.2 - 2.5 mm
2
, AWG 26-14
Tightening torque 0.4 - 0.5 Nm (3.54 - 4.43 lbf in)
Strip length 7 mm (0.2756 in)
15.3 Residual current measurement
Residual current measurement (RCM)
Nominal current 30 mArms
Measuring range 0 .. 40 mArms
Operating current 100 µA
Resolution 1 µA
Crest factor 1.414 (relative to 40 mA)
Load 4 ohms
Overload for 1 s 5 A
Constant overloaded 1 A
Overload for 20 ms 50 A
Measurement of residual currents according to IEC/TR 60755 (2008-01), Type A
Maximum external load 300 ohms (for cable break detection)
Terminal connection capacity (residual current measurement)
Connectible conductors. Only connect one conductor per terminal point!
Single core, multi-core, fine-stranded 0.2 - 1.5 mm
2
, AWG 28-16
Wire ferrules (non-insulated) 0.2 - 1.5 mm
2
, AWG 26-16
Wire ferrules (insulated) 0.2 - 1.5 mm
2
, AWG 26-16
Tightening torque 0.2 - 0.25 Nm (1.77 - 2.21 lbf in)
Strip length 7 mm (0.2756 in)
Line length Up to 30 m (32.81 yd) unshielded;
greater than 30 m (32.81 yd) shielded
Potential isolation and electrical safety of the residual current measurement inputs
·The RCM measurement inputs are double insulated relative to the current and voltage measurement
inputs as well as to the supply voltage.
·There is no insulation to the temperature measurement input.
·There is only functional isolation relative to the Ethernet, Profibus, RS-485 and digital I/O interfaces.
·The connected residual current transformers and the lines to be measured must each have at least an
additional or a basic insulation in accordance with IEC61010-1:2010 for the mains voltage applied.