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Siemens SIRIUS 3RT1045-1AK60

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3RT1045-1AK60

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The Siemens 3RT1045-1AK60 is a robust contactor designed for effective switching applications. This model is rated for AC-3 operations at 37 kW when operating at 400 volts, ensuring reliable performance in industrial settings.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Technical specifications for 3RT1045-1AK60

ManufacturerSiemens
Product LineSIRIUS
Part Number3RT1045-1AK60
UPC040892568080
Weight2.44 lbs (1.11 kg)
Contactor TypeContactor, AC-3 rated for 37 kW at 400V
Contactor SizeS3
Protection Rating (Front)IP20
Pollution Degree3
Maximum Installation Altitude2000 m above sea level
Operating Temperature Range-25°C to +60°C
Mechanical Endurance10 million cycles
Main Contact Configuration3 Normally Open (NO)
Rated Operational Current (AC-3, 400V)80 A
Rated Operational Power (AC-3, 400V)37 kW
Control Voltage110V AC (50Hz) / 120V AC (60Hz)
Coil Power Consumption (Pull-in/Holding)300 VA / 21 VA
Short-Circuit Protection (Coordination Type 1)250 A fuse required
Mounting MethodScrew or snap-on for 35mm / 75mm DIN rail
Terminal Connection TypeScrew-type for main and auxiliary circuits
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Siemens offers the 3RT1045-1AK60 series SIRIUS contactor, designed for industrial control purposes. This contactor is classified as AC-3 rated, facilitating usage at a significant operational power of 37 kW at 400 volts. Operating with a rated current of up to 80 A, it supports high-demand applications. The contactor configuration includes three normally open contacts (NO), a common arrangement for starting and controlling motors.

The unit is designed for durability with a mechanical endurance rating of 10 million cycles, making it suitable for frequent use. Rated for pollution degree 3, the contactor can be adapted for various environments. As for altitude, it can be installed up to 2000 meters above sea level without a decrease in performance. The operating temperature is also favorable, allowing for use in environments ranging from -25°C to +60°C.

For control, the contactor works with a control voltage of either 110V AC at 50Hz or 120V AC at 60Hz, and its coil power consumption is rated at 300 VA for pull-in and 21 VA for holding. Short-circuit protection is essential for safe operations, requiring a 250 A fuse, providing a safety net against electrical faults. Installation flexibility is enhanced with screw or snap-on mounting options, designed for 35mm or 75mm DIN rail. All connections utilize screw-type terminals, offering secure connectivity for both main and auxiliary circuits. This design provides the robustness and versatility necessary for various industrial applications.