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Product description
3.4 3RU21 thermal overload relays
3.4
3RU21 thermal overload relays
3RU2116 thermal overload relay, size S00, 45 mm width
Front view
3RU2116 overload relay equipment
24
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 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
Feed-through: Contactor coil terminal
⑤
Feed-through: Contactor auxiliary switch
⑥
Main circuit terminals:
A screw-type, spring-loaded or ring cable lug connection
system can be used to connect the main circuit terminal.
⑦
Control circuit terminals:
A screw-type, spring-loaded or ring cable lug connection
system can be used to connect the control circuit terminal.
⑧
STOP button:
Pressing the button opens the NC contact, thereby
disconnecting the downstream contactor. The NC contact
closes again when the button is released.
⑨
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 all sizes.
⑩
Label
Terminal labels
2/T1
4/T2
6/T3
95
96
97
98
14/22
A2
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
Main circuit terminals
NC contact (NC 95-96)
NO contact (NO 97-98)
Feed-through contactor auxiliary switch
Feed-through contactor coil terminal
Manual, 09/2014, A5E03656507420A/RS-AA/002
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