107
UMG 512
Residual current monitoring (RCM)
Rated current
30mA
rms
Metering range
0 to 40mA
rms
Triggering current
100
µ
A
Resolution
1
µ
A
Crest factor
1.414 (related to 40mA)
Burden
4 Ohm
Overload for 1 sec.
5A
Sustained overload
1A
Overload for 20 ms
50A
Residual current monitoring
i.a.w. IEC/TR 60755 (2008-01), type A
Maximum external burden
300 Ohm (for cable break detection)
Terminal connection capacity (residual current monitoring)
Connectable conductors. Only one conductor can be connected per terminal!
Rigid/flexible
0.14 - 1.5mm
2
, AWG 28-16
Flexible with core end sheath without plastic sleeve
0.20 - 1.5mm
2
Flexible with core end sheath with plastic sleeve
0.20 - 1.5mm
2
Stripping length
7mm
Tightening torque
0.20 - 0.25Nm
Cable length
up to 30m unshielded, from 30m shielded
Potential separation and electrical safety
-
The RCM measurement inputs are double-insulated from the current and voltage measurement inputs as well as the supply voltage.
- There is no insulation from the thermistor input.
- There is only a functional insulation from the Ethernet, Profibus and RS485 interfaces and the digital I/Os.
- The residual current transformer connected and the lines to be measured must each have at least one additional or a basic insulation
per IEC61010-1:2010 for the mains voltage present.
Summary of Contents for UMG 512
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