Page 176 - contactors_motor_protection_for_rolling_stock_application

TF42-B thermal overload relays – 0.10 to 38.0 A
Technical data

General technical data
Type TF42-B
Pollution degree 3
Phase loss sensitive Yes
2 Ambient air temperature
Operation Open - compensated -25 ... +60 °C
Open -25 ... +60 °C
Storage -50 ... +80 °C
Ambient air temperature compensation Acc. to IEC/EN60947-4-1
Maximum operating altitude permissible 2000 m
Shock and vibration withstand acc. to IEC 61373 Category 1, Class B
Mounting position Position 1-5
Mounting Mount on the contactor and tighten the screws of the main circuit terminals or with single
mounting kit on DIN rail (35 mm)
Degree of protection Housing IP20
Main circuit terminals IP10

Electrical connection
Main circuit
Type TF42-B TF42-B
(TF42-0.13 … TF42-16) (TF42-20 … TF42-38)
Connecting capacity
Rigid 1 x or 2 x 0.75 ... 4 mm² 1.5 ... 2.5 mm² or 2.5 ... 10 mm² 1)
Flexible with insulated ferrule 1 x or 2 x 0.75 ... 4 mm² 2.5 ... 4 mm² or 4 ... 6 mm² 1)
Stranded acc. to UL/CSA 1 x or 2 x AWG 18-10 AWG 14-6
Flexible acc. to UL/CSA 1 x or 2 x AWG 18-10 AWG 14-6
Stripping length 12 mm
Tightening torque 1.5 - 2.5 Nm / 13 … 22 Ib.in 2.5 - 2.7 Nm / 22 Ib.in
Recommended screw driver M4 (Pozidriv 2)

Auxiliary circuit
Type TF42-B
Connecting capacity
Rigid 1 x or 2 x 0.75 ... 4 mm²
Flexible with ferrule 1 x or 2 x 0.75 ... 2.5 mm²
Flexible with insulated ferrule 1 x 0.75 ... 2.5 mm²
2 x 0.75 ... 1.5 mm²
Flexible 1 x or 2 x 0.75 ... 1 mm² or 1 ... 2.5 mm² 1)
Stranded acc. to UL/CSA 1 x or 2 x AWG 18-12
Flexible acc. to UL/CSA 1 x or 2 x AWG 18-12
Stripping length 9 mm
Tightening torque 1.1 ... 1.5 Nm / 9 … 13 Ib.in
Recommended screw driver M3 (Pozidriv 2)
Only connect two different "conductor/wire" cross-sections, if they are within the indicated ranges.
1)

2CDC106106C0201

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