Siemens SIRIUS 3RU - Page 25

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
25
3RU2136 thermal overload relay, size S2, 55 mm width
Front view
Description
3RU2136 overload relay equipment
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
Data Matrix code
⑤
Main circuit terminals:
A screw-type connection system can be used to connect the main
circuit terminal.
⑥
Control circuit terminals:
A screw-type or spring-loaded connection system can be used to
connect the control circuit terminal.
⑦
STOP button:
Pressing the button opens the NC contact, thereby disconnecting
the downstream contactor. The NC contact closes again when
the button is released.
⑧
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.
⑨
Label
Terminal labels
2/T1
Main circuit terminals
4/T2
6/T3
95
NC contact (NC 95-96)
96
97 NO contact (NO 97-98)
98