Description
TA75DU-25 Thermal Overload Relay
The TA75DU-25 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 10A. Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP- and Test function and a trip indication. The overload relays are connected directly to the block contactors. Single mounting kits are available as accessory.
Setting Range: 18 … 25 A
Rated Operational Voltage: Auxiliary Circuit 440 V DC, Auxiliary Circuit 500 V AC, Main Circuit 690 V AC, Main Circuit 440 V DC
Rated Operational Current (Ie): 25 A
Rated Frequency (f): Auxiliary Circuit 50 Hz, Auxiliary Circuit 60 Hz, Auxiliary Circuit DC, Main Circuit 60 Hz, Main Circuit 50 Hz, Main Circuit DC
Rated Impulse Withstand Voltage (Uimp): Auxiliary Circuit 6 kV, Main Circuit 6 kV
Rated Insulation Voltage (Ui): 690 V
Number of Poles: 3P
Auxiliary Contacts: NC 1, NO 1
Number of Protected Poles: 3
Conventional Free-air Thermal Current (Ith): Auxiliary Circuit NC 10 A, Auxiliary Circuit NO 6 A
Rated Operational Current AC-15 (Ie): (120 V) NC 3 A, (120 V) NO 1.5 A, (240 V) NC 3 A, (240 V) NO 1.2 A, (400 V) NC 0.75 A, (400 V) NO 0.37 A, (440 V) NC 0.75 A, (440 V) NO 0.37 A, (500 V) NC 0.3 A, (500 V) NO 0.25 A
Rated Operational Current DC-13 (Ie): (125 V) NC 0.25 A, (125 V) NO 0.25 A, (24 V) NC 1.25 A, (24 V) NO 1.25 A, (250 V) NC 0.12 A, (250 V) NO 0.04 A, (60 V) NC 0.25 A, (60 V) NO 0.25 A
Degree of Protection: Housing IP20, Main Circuit Terminals IP10
Pollution Degree: 3
Connecting Capacity Auxiliary Circuit: Flexible with Ferrule 1/2x 0.75 … 2.5 mm², Flexible 1/2x 0.75 … 2.5 mm², Rigid 1/2x 0.75 … 4 mm²
Connecting Capacity Main Circuit: Flexible with Ferrule 1x 2.5 … 25 mm², Flexible with Ferrule 2x 2.5 … 10 mm², Rigid 1x 2.5 … 25 mm², Rigid 2x 2.5 … 16 mm²
Tightening Torque: Auxiliary Circuit 1 … 1.3 N·m, Main Circuit 4.5 N·m
Wire Stripping Length: Auxiliary Circuit 0.9 cm, Main Circuit 1.4 cm
Recommended Screw Driver: Auxiliary Circuit Pozidriv 1, Main Circuit Pozidriv 2
Power Loss: at Rated Operating Conditions per Pole 1.8 … 3.4 W
Suitable For: A50, A63, A75, AE50, AE63, AE75
Standards: IEC/EN 60947-1, IEC/EN 60947-4-1, IEC/EN 60947-5-1, UL 60947-1, UL 60947-4-1
Maximum Operating Voltage UL/CSA: Main Circuit 600 V AC
Contact Rating UL/CSA: (NC:) B600, (NO:) C300
Connecting Capacity Main Circuit UL/CSA: Flexible 1/2x 8-1 AWG, Stranded 1/2x 8-1 AWG
Connecting Capacity Auxiliary Circuit UL/CSA: Flexible 1/2x 18-14 AWG, Stranded 1/2x 18-14 AWG
Tightening Torque UL/CSA: Auxiliary Circuit 12 in·lbs, Main Circuit 40 in·lbs
Ambient Air Temperature: Operation -25 … +55 °C, Operation Compensated -25 … +55 °C, Storage -40 … +70 °C
Ambient Air Temperature Compensation: Yes
Maximum Operating Altitude Permissible: 2000 m
Resistance to Shock acc. to IEC 60068-2-27: 11 ms Pulse 12g, 25g 2 shocks 13 ms
RoHS Information: Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
Toxic Substances Control Act – TSCA: Declaration available
Conflict Minerals Reporting Template (CMRT): Declaration available
REACH Declaration: Declaration available
RoHS Declaration: Declaration available
WEEE Category: 5. Small Equipment (No External Dimension More Than 50 cm)
Customs Tariff Code: 85364900
