Siemens 3TK28 - Connection Procedures; Terminal Block Connection Data

3TK28 safety relays
Manual, 07/2016, NEB926157502000/RS-AB/003
189
Connection
5
5.1
Connection data for terminal blocks
The following connection data apply dependent on the removable terminal block:
Specification and value
in the case of removable
terminal blocks with screw-type
terminals
Specification and value
in the case of removable
terminal blocks with spring-
loaded terminals
Screwdriver Cross-tip screwdriver
Size: PZ 2 (⌀ 5 … 6 mm)
Torque: 0.8 … 1.2 Nm
Article No.: 8WA2803
Screwdriver
Size: 0 or 1 (width to 3 mm) for
raising the terminal springs
Article No.: 8WH9200-0AA0
Rigid cable
Maximum number of cables x
cable cross-section:
1 x 0.5 … 4.0 mm
2
or
2 x 0.5 … 2.5 mm
2
Maximum number of cables x
cable cross-section:
2 x 0.25 … 1.5 mm
2
Flexible cable with end
sleeve/cable lug
Maximum number of cables x
cable cross-section:
1 x 0.5 … 2.5 mm
2
or
2 x 0.5 … 1.5 mm
2
Maximum number of cables x
cable cross-section:
2 x 0.25 … 1.5 mm
2
Flexible cable
Not allowed Maximum number of cables x
cable cross-section:
2 x 0.25 … 1.5 mm
2