3RW5245-6TC14

The 3RW5245-6TC14 has a rated current of 315A and is suitable for 200-480V three-phase motors. It has a built-in thermistor input that can be connected to a Type A PTC or Klixon sensor. The control voltage is 110-250V AC. The motor reference power is 160kW at 400V. The internal delta connection is 315kW.

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Siemens 3RW5245-6TC14 SIRIUS soft starter 315A thermistor model product image

Product Positioning

The 3RW5245-6TC14 is a soft starter from the SIRIUS 3RW52 series. It has a rated current of 315A and a built-in thermistor input that can be connected to a Type A PTC or Klixon sensor to monitor motor temperature rise. It is suitable for medium and large three-phase motor applications with high requirements for motor temperature protection.

Core Product Advantages and Features

Thermistor temperature protection

Supports connection to Type A PTC or Klixon/Thermoclick sensors for real-time monitoring of winding temperature.

Medium and high current starting capability

Rated current 315A, corresponding to the slow start and slow stop control requirements of medium and large motors.

Built-in bypass energy-saving operation

After startup, the bypass contact is switched to operate, reducing the heat loss of the soft starter body.

Supports multiple communication protocols

Optional communication modules include PROFINET, PROFIBUS, EtherNet/IP, and Modbus.

project	Specification
model	3RW5245-6TC14
Rated operating current	315 A
Main circuit rated voltage	200-480 V AC
Control power supply voltage	110-250 V AC
Motor power (400V, standard wiring)	160 kW
Motor power (400V, internal delta connection)	315 kW
Motor power (230V, standard wiring)	90 kW
Protection level	IP00
Terminal type	Screw terminals
Temperature protection	Built-in thermistor input (Type A PTC/Klixon)
External dimensions (height x width x depth)	393 x 210 x 203 mm
net weight	9.9 kg
series	SIRIUS 3RW52 Universal Soft Starter

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3RW5245-6AC14

The 3RW5245-6AC14 has a rated current of 315A and is suitable for 200-480V three-phase motors. It provides 4-20mA (preset) or 0-10V parameterizable analog output signals for easy monitoring of the operating status by the host system. It is also equipped with two normally open digital outputs and one set of switching contacts.

3RW5244-6TC14

3RW5244-6TC14 has a rated current of 250A, is suitable for 200-480V three-phase motors, has a built-in thermistor input, a control voltage of 110-250V AC, a motor reference power of 132kW with 400V standard wiring and 250kW with internal delta wiring, and a UL rated power of 75HP with 230V and 150HP with 480V.