Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
38
Manual, 07/2016, NEB926157502000/RS-AB/003
3.6.2.7
Connection 3TK2820
Connection data for terminal blocks
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
1 (⌀
4 mm)
Torque: 0.8 … 1.2 Nm
Screwdriver
Size: 0 or 1 (width to 3 mm) for raising the terminal
springs
DIN 5264-A; 0.5 x 3
Rigid cable
A = 8mm
1 x 0.5 ... 2.5 mm
2
1 x AWG 20 to 14
2 x 0.5 ... 1.5 mm
2
2 x AWG 20 to 16
A = 10 mm
1 x 0.5 ... 2.5 mm
2
1 x AWG 20 to 14
A = 12 mm
1 x 0.5 ... 4 mm
2
1 x AWG 20 to 12
Flexible cable with end
sleeve/cable lug
A = 8 mm
1 x 0.5 ... 2.5 mm
2
1 x AWG 20 to 14
2 x 0.5 ... 1.0 mm
2
2 x AWG 20 to 18
A = 10 mm
1 x 0.5 ... 1.5 mm
2
1 x AWG 20 to 16
A = 12 mm
1 x 0.5 ... 2.5 mm
2
1 x AWG 20 to 14
Flexible cable
A = 8 mm
1 x 0.5 ... 2.5 mm
2
1 x AWG 20 to 14
2 x 0.5 ... 1.5 mm
2
2 x AWG 20 to 16
A = 10 mm
1 x 0.5 ... 2.5 mm
2
1 x AWG 20 to 14
A = 12 mm
1 x 0.5 ... 4 mm
2
1 x AWG 20 to 12
