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Siemens SIRIUS 3RT2018-1BB42

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3RT2018-1BB42

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The Siemens 3RT2018-1BB42 is a robust power contactor from the SIRIUS series, designed for various industrial applications. It operates efficiently with a coil voltage of 24 V DC and features a rated operational capacity of 16 A at AC-3 for 400 V systems.

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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 3RT2018-1BB42

ManufacturerSiemens
Product TypePower Contactor
Product LineSIRIUS
Part Number3RT2018-1BB42
Weight0.63 lbs (0.28 kg)
UPC662643913217
Frame SizeS00 Size
Number of Poles3 Poles
Number of N.O. Contacts3 N.O. Contacts
Number of Auxiliary N.C. Contacts1 N.C. Contacts
Rated Operational Current @ AC-3 / 400 V16 A
Rated Operational Current @ AC-1 / 400 V22 A
Rated Operational Power @ AC-3 / 400 V7.5 kW
Coil Voltage24 V DC
Insulation Voltage Rated Value690 V
IP RatingIP 20
Mechanical Operating Lifecycles30,000,000 typical cycles
Coil Magnet Power Consumption (DC)4 W
Operating Temperature Range-25°C to +60°C
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The 3RT2018-1BB42 contactor from Siemens is classified as a power contactor, ideal for frequent switching in a variety of industrial tasks. This unit operates within an S00 frame size and consists of three poles with three normally open (N.O.) contacts and one normally closed (N.C.) auxiliary contact.

It has a rated operational current of 16 A at AC-3 with a voltage of 400 V, and can handle up to 22 A at AC-1 under the same voltage conditions. With a rated operational power of 7.5 kW at AC-3, this contactor can accommodate significant load requirements. The insulation voltage reaches up to 690 V, ensuring dependable performance within designated electrical systems.

This device features a coil voltage of 24 V DC, consuming 4 W of power, making it efficient for control circuits. The contactor is constructed with an IP 20 rating, indicating protection against solid foreign objects larger than 12 mm, making it suitable for many applications while requiring typical environmental considerations.

Its robust design enables it to endure approximately 30 million mechanical operating cycles, ensuring longevity and reliability. It can be operated in a wide temperature range, specifically from -25°C to +60°C, accommodating various operating conditions. This adaptable power contactor can serve critical roles in modern automated systems, contributing to effective control and safety.