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TF42 thermal overload relays – 0.10 to 38.0 A
Ordering details

Description
The TF42 thermal overload relays are economic electromechanical protection devices for the main circuit.
They offer reliable protection for motors in the event of overload or phase failure. The devices have trip
class 10.
The thermal overload relays are three pole relays with bimetal tripping elements. The motor current flows
through the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over
2CDC231006F0013 change of the contacts switching position (95-96 / 97-98).
current), the bimetal elements bent as a result of the heating. This leads to a release of the relay and a
– Manual or automatic reset selectable
– Phase loss sensitive acc. to IEC/EN 60947-4-1
TF42 – TEST and STOP function – Trip indication on the front
– Temperature compensation
– Suitable for three- and single-phase applications
– With ATEX certification
Ordering details
Setting range Short-circuit Trip class Type Order code Weight
protective device (1 pce)
A
kg
2CDC231026F0013 0.10 ... 0.13 0.5 A, fuse type T 10 TF42-0.13 1SAZ721201R1005 0.130 6
10
1.0 A, fuse type T
0.130
0.13 ... 0.17
1SAZ721201R1008
TF42-0.17
0.17 ... 0.23
1SAZ721201R1013
0.130
TF42-0.31
0.23 ... 0.31 1.0 A, fuse type T 10 TF42-0.23 1SAZ721201R1009 0.130
10
1.0 A, fuse type T
TF42 + DB42 0.31 ... 0.41 2.0 A, fuse type gG 10 TF42-0.41 1SAZ721201R1014 0.130
0.41 ... 0.55 2.0 A, fuse type gG 10 TF42-0.55 1SAZ721201R1017 0.130
0.55 ... 0.74 4.0 A, fuse type gG 10 TF42-0.74 1SAZ721201R1021 0.130
0.74 ... 1.00 6.0 A, fuse type gG 10 TF42-1.0 1SAZ721201R1023 0.130
1.00 ... 1.30 6.0 A, fuse type gG 10 TF42-1.3 1SAZ721201R1025 0.130
1.30 ... 1.70 10.0 A, fuse type gG 10 TF42-1.7 1SAZ721201R1028 0.130
1.70 ... 2.30 10.0 A, fuse type gG 10 TF42-2.3 1SAZ721201R1031 0.130
2.30 ... 3.10 10.0 A, fuse type gG 10 TF42-3.1 1SAZ721201R1033 0.130
3.10 ... 4.20 20.0 A, fuse type gG 10 TF42-4.2 1SAZ721201R1035 0.130
4.20 ... 5.70 20.0 A, fuse type gG 10 TF42-5.7 1SAZ721201R1038 0.130
5.70 ... 7.60 35.0 A, fuse type gG 10 TF42-7.6 1SAZ721201R1040 0.130
7.60 ... 10.0 35.0 A, fuse type gG 10 TF42-10 1SAZ721201R1043 0.130
10.0 ... 13.0 40.0 A, fuse type gG 10 TF42-13 1SAZ721201R1045 0.130
13.0 ... 16.0 40.0 A, fuse type gG 10 TF42-16 1SAZ721201R1047 0.130
16.0 ... 20.0 63.0 A, fuse type gG 10 TF42-20 1SAZ721201R1049 0.145
20.0 ... 24.0 63.0 A, fuse type gG 10 TF42-24 1SAZ721201R1051 0.145
24.0 ... 29.0 63.0 A, fuse type gG 10 TF42-29 1SAZ721201R1052 0.145
29.0 ... 35.0 80.0 A, fuse type gG 10 TF42-35 1SAZ721201R1053 0.145
35.0 ... 38.0/40.0 80.0 A, fuse type gG 10 TF42-38 1SAZ721201R1055 0.145

Main dimensions mm, inches
16.2 0.64" 11.7 0.46"
2.3 0.09" 50.25 1.98" 2.7 0.11"

3.48"
88.3

9.1 0.36" 12.35 0.49" 52.6 2.07" 2CDC232005F0009
8.1 0.32" 14.4 0.57" 66.4 2.61" 2CDC106046C0201a
45 1.77" 70.5 2.78"
TF42

ABB Motor protection and control - short form catalog | 6/5