Siemens SIRIUS 3RT2018-1AK61 Power Contactor, 16A, 7.5kW, 3-Pole, 110/120V AC Coil, Size S00, 1 NO Aux Contact Original Brand New

Overview: Siemens SIRIUS 3RT2018-1AK61 Power Contactor

The Siemens 3RT2018-1AK61 is a high-performance, non-reversing power contactor from the globally recognized SIRIUS 3RT2 series, engineered for reliable switching of motors and electrical loads. This compact, 3-pole device is rated for $16\text{ A}$ (AC-3e/AC-3) and $7.5\text{ kW}$ at $400\text{ V}$. It features a versatile control coil that operates on $110\text{ V AC}$ ($50\text{ Hz}$) or $120\text{ V AC}$ ($60\text{ Hz}$) and includes one integrated normally open (1 NO) auxiliary contact, offering a ready solution for monitoring and control circuits. The robust screw terminals ensure secure and straightforward wiring.

Benefit

• Reliable Motor Protection: Rated for AC-3 and the new AC-3e efficiency class, ensuring safe and efficient switching of three-phase squirrel-cage motors.
• Space-Saving Design: The compact Size S00 form factor minimizes panel space requirements in industrial control cabinets.
• Global Standard: As part of the SIRIUS family, it meets international standards, simplifying global implementation and maintenance.
• Ease of Integration: Integrated $1\text{ NO}$ auxiliary contact provides immediate feedback for signaling or interlocking circuits without needing an external add-on.
• Durable and Low-Maintenance: High mechanical and electrical service life (up to $30$ million mechanical operating cycles) reduces downtime and maintenance costs.

Function

The Siemens 3RT2018-1AK61 power contactor is primarily used to switch electric motors, resistive loads, and other power-intensive devices. It operates by drawing a low current through its $110/120\text{ V AC}$ control coil, which then electromagnetically closes the three main contacts to switch the high-current load circuit. This functionality is essential in applications such as:

• Starting and stopping $7.5\text{ kW}$ motors in machinery and conveyor systems.
• Controlling pumps, fans, and compressors.
• Acting as a main switching element in control panels and motor starter assemblies.

For more of our high-quality industrial control products, visit Turll today!