SIEMENS
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Siemens IK PI · 2015
IO-Link
SIRIUS 3UG48 monitoring relays for stand-alone installation for IO-Link
Residual current monitoring
3UL23 residual-current transformers
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Overview
SIRIUS 3UL23 residual-current transformer
The 3UL23 residual-current transformers detect residual
currents in machines and plants. They are suitable for pure AC
residual currents or AC residual currents with a pulsating DC
fault current component (transformer type A in accordance
with DIN VDE 0100-530/IEC TR 60755).
Together with the 3UG4625, 3UG4825 residual-current monitor-
ing relays for IO-Link or the SIMOCODE 3UF motor management
and control device they enable residual-current and ground-fault
monitoring.
The 3UL2302-1A and 3UL2303-1A residual-current transformers
with a feed-through opening from 35 to 55 mm can be mounted
in conjunction with the 3UL2900 accessories on a TH 35 stan-
dard mounting rail according to IEC 60715.
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Selection and ordering data
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Accessories
Diameter
of the feed-through opening
Connectable cross-section of the
connecting terminal
Screw terminals
mm
mm
2
Article No.
Residual-current transformer
(essential accessory for 3UG4625, 3UG4825 or SIMOCODE 3UF)
35
2.5
3UL2302-1A
55
2.5
3UL2303-1A
80
2.5
3UL2304-1A
110
2.5
3UL2305-1A
140
2.5
3UL2306-1A
210
4
3UL2307-1A
Version
Article No.
Adapter
3UL2900
Adapter
For mounting onto standard rail
for 3UL23 to diameter 55 mm
3UL2900
© Siemens AG 2014