Siemens 3RT1034-1AK60

The Siemens 3RT1034-1AK60 is a power contactor from the SIRIUS product line. It is a three-pole contactor with a size designation of S2 and is designed for AC-3 applications with a power rating of 15 kW at 400 V. The contactor operates on an AC control supply voltage of 110 V at 50 Hz or 120 V at 60 Hz. These products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. They come with a 2-year warranty from MRO Electric. We also carry Contactors from other manufacturers such as FANUC and Yaskawa.

Specifications

In terms of technical specifications, the contactor has an insulation voltage rating of 690 V and a degree of pollution rating of 3. It is capable of withstanding surge voltages up to 6 kV. The maximum permissible voltage for safe isolation between the coil and main contacts is 400 V. The contactor has an IP00 protection class on the front and terminal side, indicating that it does not protect solid objects or liquids.

The mechanical service life of the contactor is estimated to be around 10 million switching cycles. When equipped with compatible auxiliary switch blocks or additional auxiliary switches, the mechanical service life varies between 5 million and 10 million switching cycles, depending on the configuration.

Regarding ambient conditions, the contactor can be installed at an altitude of up to 2,000 meters above sea level. It has an operating temperature range of -25 to +60 °C and a storage temperature range of -55 to +80 °C.

Features

In terms of the main circuit, the contactor has three normally open (NO) contacts for the main contacts and no normally closed (NC) contacts. The operating current for AC-1 applications at 400 V is rated at 50 A, and for AC-3 applications, it is rated at 32 A for 400 V and 20 A for 690 V. The contactor can accommodate minimum permissible conductor cross-sections of 10 mm² at 60 °C and 16 mm² at 40 °C for AC-1 applications.

Design

The contactor is designed for various operating currents and power ratings depending on the application. For example, at AC-1, it can handle an operating power of up to 31 kW at 400 V. At AC-3, the rated operating power is 15 kW at 400 V and 18.5 kW at 690 V. The contactor also has a thermal short-time current limiting capability of up to 320 A for 10 seconds.

In terms of control, the contactor operates on an AC control supply voltage of 110 V at 50 Hz or 120 V at 60 Hz. It has a closing delay of 11 to 30 ms, an opening delay of 7 to 20 ms, and an arcing time of 10 to 15 ms. The auxiliary circuit of the contactor does not have any instantaneous contacts, and the maximum operating currents for AC-12 and AC-15 applications are 10 A and 6 A, respectively.

Mounting

The contactor can be mounted using screw and snap-on methods onto a 35 mm standard mounting rail according to DIN EN 50022. It has compact dimensions, with a height of 112 mm, width of 55 mm, and depth of 115 mm. The contactor is equipped with screw-type terminals for both the main current circuit and the auxiliary and control current circuit.

Overall, the Siemens 3RT1034-1AK60 contactor is a reliable and versatile device designed for power control applications in various industrial settings. Its robust construction, wide temperature range, and high switching capacity make it suitable for demanding operating conditions.

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