13.1.2 Terminal support for stand-alone assembly
Description
For a stand-alone assembly or if an overload relay is being used at the same time, adapters for
stand-alone installation are available for separate DIN rail mounting or screw mounting.
The accessories are exactly the same as the accessories for the 3RU21 thermal overload relay and
the 3RB3 solid-state overload relay.
Table 13-1 Stand-alone assembly of the 3RR2 current monitoring relay
Size Connection system Terminal support for stand-
alone assembly
S00 Screw-type 3RU2916‑3AA01
Spring-loaded 3RU2916‑3AC01
S0 Screw-type 3RU2926‑3AA01
Spring-loaded 3RU2926‑3AC01
S2 Screw-type 3RU2936-3AA01
Mounting
The terminal supports can be snapped onto 35 mm DIN rails according to DIN EN 50022. They
can also be screw-mounted.
The gure below shows how the terminal support for stand-alone assembly is mounted and
disassembled, based on the example of an analog setting current monitoring relay.
① Guide the current monitoring relay into the terminal support from below.
② Tighten the screws on the terminal support with a
Pozidriv size 2 (S00) or Pozidriv size 3 (S0)
screwdriver (tightening torque 0.8 to 1.2 Nm).
Check that the cable is clamped tight.
Figure 13-2 Mounting the terminal support (screw-type connection technology in the main circuit)
Accessories
13.1 Accessories for 3RR2 current monitoring relays
SIRIUS 3UG4 / 3RR2 monitoring relay
242 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005
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