Product description
3.4 3RU21 thermal overload relays
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
Manual, 09/2016, A5E03656507420A/RS-AB/003
23
3RU21 thermal overload relays
3RU2116 thermal overload relay, size S00, 45 mm width
3RU2116 overload relay equipment
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 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
Motor current setting:
The large rotary button provides an easy means of setting the device
to the rated motor current.
④
Data Matrix code
Feed-through: Contactor coil terminal
Feed-through: Contactor auxiliary switch
⑦
Main circuit terminals:
A screw-type, spring-loaded or ring cable lug connection system can
be used to connect the main circuit terminal.
Control circuit terminals:
A screw-type, spring-loaded or ring cable lug connection system can
be used to connect the control circuit terminal.
⑨
STOP button:
Pressing the button opens the NC contact, thereby disconnecting the
downstream contactor. The NC contact closes again when the button
Selector switch for manual / automatic RESET and RESET button:
this switch is used to choose between manual and automatic
RESET. A device set to manual RESET can be reset locally by
pressing the RESET button. The device can be reset remotely using
the RESET modules (accessories) which are compatible for use with
Label
Main circuit terminals
NC contact (NC 95-96)
NO contact (NO 97-98)
Feed-through contactor auxiliary switch
Feed-through contactor coil terminal