Terminal Support For Stand-Alone Assembly - Siemens SIRIUS 3UG4 Equipment Manual

Accessories
13.1 Accessories for 3RR2 current monitoring relays
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
Size
S00
S0
S2
Mounting
The terminal supports can be snapped onto 35 mm DIN rails according to DIN EN 50022. They
can also be screw-mounted.
The figure 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
②
Figure 13-2
242
Stand-alone assembly of the 3RR2 current monitoring relay
Connection system
Screw-type
Spring-loaded
Screw-type
Spring-loaded
Screw-type
Guide the current monitoring relay into the terminal support from below.
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.
Mounting the terminal support (screw-type connection technology in the main circuit)
Terminal support for stand-
alone assembly
3RU2916‑3AA01
3RU2916‑3AC01
3RU2926‑3AA01
3RU2926‑3AC01
3RU2936-3AA01
SIRIUS 3UG4 / 3RR2 monitoring relay
Equipment Manual, 07/2021, NEB927043002000/RS-AD/005