3Rb31 Solid-State Overload Relays - Siemens SIRIUS 3RU Manual

3.8

3RB31 solid-state overload relays

3RB3113 electronic overload relays, size S00, 45 mm width
Front view
3RB3113 electronic overload relay equipment
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
Manual, 09/2016, A5E03656507420A/RS-AB/003
Description
Position digits
①
Connection for contactor mounting:
In terms of their electrical and mechanical
features and their design, these pins are
perfectly compatible with the 3RT2 contactors
for the direct mounting of overload relays.
Stand-alone assembly is also an option (in
some cases in conjunction with a stand-alone
assembly module).
②
Switch position indicator and TEST function
for wiring:
Indicates a trip and facilitates testing of the
wiring.
③
RESET button
A device set to manual RESET can be reset
locally by pressing the RESET button. In
addition, an electronic remote RESET is
integrated into the 3RB31.
④
Tripping class setting/internal ground-fault
detection:
This rotary switch is used to set the required
tripping class dependent upon the starting
conditions and activate internal ground-fault
detection.
⑤
Electronics test (device test):
Enables a test of all major device components
and functions.
⑥
Control circuit terminal (removable):
A screw-type or spring-loaded system can be
used to connect the control circuit terminal.
⑦
Feed-through: Contactor auxiliary switch
⑧
Feed-through: Contactor coil terminal
⑨
Main circuit terminal:
A screw-type or spring-loaded system can be
used to connect the main circuit terminal.
⑩
Selector switch for manual/automatic RESET
and RESET button:
The slide switch is used to choose between
manual and automatic RESET.
⑪
Motor current setting:
The large rotary button provides an easy
means of setting the device to the rated motor
current.
⑫
Label / Data Matrix code (behind the label)
Product description
3.8 3RB31 solid-state overload relays
41