Siemens SIRIUS 3RU2 - Auxiliary Circuit Connections; Protection Function; Safety

Technical data
11.3 3RU21 thermal overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
120 Manual, 09/2014, A5E03656507420A/RS-AA/002
11.3.2.5
Auxiliary circuit connections
Technical data for auxiliary circuit connection, 3RU2136 overload relays
3RU2136-..B.
3RU2136-..D.
Design of the electrical connection
for
auxiliary and control current circuit
screw-type terminals spring-loaded terminals
Type of the connectable conductor
cross-section
• for auxiliary contacts
– solid or multi-stranded
2x (0,5 ... 1,5 mm²),
2x (0,75 ... 2,5 mm²)
2x (0,5 ... 2,5 mm²)
– finely stranded
– without conductor final cutting
— 2x (0,5 ... 2,5 mm²)
– with conductor end processing
2x (0,5 ... 1,5 mm²),
2x (0,75 ... 2,5 mm²)
2x (0,5 ... 1,5 mm²)
• for AWG conductors
2x (20 ... 16), 2x (18 ... 14) 2x (20 ... 14)
Tightening torque
for auxiliary contacts
• with screw-type terminals
N·m
0.8 … 1.2 —
Design of the thread
of the
connection screw
of the auxiliary and
control pins
M3 —
11.3.2.6
Protection function
Technical data for the protection function, 3RU2136 overload relays
3RU2136-....
Product function
overload protection
Yes
Product function
overload warning
No
Product function
phase disturbance recognition
Yes
Product function
short-circuit to earth recognition
No
Design of the overload circuit breaker
thermal
11.3.2.7
Safety
Technical data for safety, 3RU2136 overload relays
You can obtain information on the safety-related data of 3RU2136 thermal overload relays
from the Product Data Sheet (Page 101) or upon request from Technical Assistance
(http://www.siemens.com/sirius/technical-assistance).