The TF42-3.1 thermal overload relay is an economic electromechanical protection device for the main circuit. It offers reliable and fast protection for motors in the event of overload or phase failure. The device has trip class 10.Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP function and a trip indication. The overload relays are connected directly to the block contactors. Single mounting kits are available as accessory.Setting Range: 2.3 ... 3.1 ARated Operational Voltage:Auxiliary Circuit 600 V AC/DC
Main Circuit 690 V ACRated Operational Current (I_e): 3.1 ARated Operational Current AC-3 (I_e): 3.1 ARated Frequency (f):Auxiliary Circuit 50 Hz
Auxiliary Circuit 60 Hz
Auxiliary Circuit DC
Main Circuit 50 Hz
Main Circuit 60 HzRated Impulse Withstand Voltage (U_imp):Auxiliary Circuit 6 kV
Main Circuit 6 kVRated Insulation Voltage (U_i): 690 VNumber of Poles: 3Number of Auxiliary Contacts NC: 1Number of Auxiliary Contacts NO: 1Number of Protected Poles: 3Conventional Free-air Thermal Current (I_th):Auxiliary Circuit NC 6 A
Auxiliary Circuit NO 4 ARated Operational Current AC-15 (I_e):(120 V) NC 3 A
(120 V) NO 0.75 A
(240 V) NC 3 A
(240 V) NO 0.75 A
(400 V) NC 0.75 A
(400 V) NO 0.75 A
(500 V) NC 0.75 A
(500 V) NO 0.75 ARated Operational Current DC-13 (I_e):(125 V) NC 0.55 A
(125 V) NO 0.55 A
(24 V) NC 1.25 A
(24 V) NO 1.25 A
(250 V) NC 0.27 A
(250 V) NO 0.27 A
(500 V) NC 0.15 A
(500 V) NO 0.15 A
(60 V) NC 0.55 A
(60 V) NO 0.55 ADegree of Protection: IP20Pollution Degree: 3Connecting Capacity Auxiliary Circuit:Flexible with Ferrule 1/2x 0.75 ... 2.5 mm²
Flexible with Insulated Ferrule 1x 0.75 ... 2.5 mm²
Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mm²
Flexible 1/2x 0.75 ... 1 mm²
Flexible 1/2x 1 ... 2.5 mm²
Rigid 1/2x 0.75 ... 4 mm²Connecting Capacity Main Circuit:Flexible with Ferrule 1/2x 0.75 ... 4 mm²
Flexible with Insulated Ferrule 1/2x 0.75 ... 4 mm²
Flexible 1/2x 0.75 ... 4 mm²
Rigid 1/2x 0.75 ... 4 mm²Tightening Torque:Auxiliary Circuit 1 ... 1.5 N·m
Main Circuit 1.5 ... 2.5 N·mWire Stripping Length:Auxiliary Circuit 9 mm
Main Circuit 12 mmRecommended Screw Driver: Main Circuit Pozidrive 2Mounting Position: Position 1 to 5Power Loss: at Rated Operating Conditions per Pole 1.1 ... 2.0 WSuitable For:AF09
AF12
AF16
AF26
AF30
AF38Standards:IEC/EN 60947-1
IEC/EN 60947-4-1
IEC/EN 60947-5-1
UL 60947-1
UL 60947-4-1

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Type	Category Name
Category	ABB Motor Control

Feature Group	Description	Value
TYPE	Overloads

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