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The Siemens 3RT1945-5AC21 is a dedicated operating coil for large S3-size contactors, rated at 24V AC, 50/60Hz. It is also compatible with 3RT1045 and 3RT1046 models. It can be replaced without disassembling the entire contactor. Kenxin Motor provides original factory genuine product verification.

The Siemens 3RT1944-6A is a dedicated main contact replacement kit for the 3RT1044 (S3 size, AC-3 65A, 30kW) contactor. It includes movable and fixed contacts and mounting parts, which can extend the contactor's service life and reduce the overall replacement cost. Kenxin Motor provides original factory optional services.

The Siemens 3RT1944-5AN21 is a dedicated operating coil for the 3RT1044 (S3 size) large contactor. According to the Siemens coil code system, it is rated for AC 220V, 50/60Hz. It can be replaced individually to extend the contactor's life. Kenxin Motor provides selection assistance and stock availability.

The Siemens 3RT1944-5AP01 is a dedicated operating coil for the 3RT1044 (S3 size) large contactor. It is rated for AC 230V, 50Hz single frequency, and uses screw terminal wiring. It can be replaced individually to extend the contactor's life. Kenxin Motor provides original factory genuine product verification.

The Siemens 3RT1944-5AL21 is a dedicated operating coil for the 3RT1044 (S3 size) large contactor. According to the Siemens coil code system, it is rated for AC 230V, 50/60Hz dual frequency. It can be replaced individually to extend the contactor's life. Kenxin Motor provides selection assistance.

Replacement coils for Siemens SIRIUS large contactors, AC 24V specification, screw terminal wiring, compatible with 3RT1044 series S3 size contactors. Suitable for factory spare parts inventory and emergency repair of sudden failures. Kenxin Motor has stock available and can provide selection consultation services.

Replacement coils for Siemens SIRIUS large contactors, compatible with the 3RT1044 series S3 size contactors. The voltage code is consistent with the 110V specification coils of the same series. Screw terminal wiring. Suitable as a factory backup spare part. It is still recommended to confirm the nameplate information with Kenxin Motor before placing an order to ensure that the actual voltage is correct.

This Siemens SIRIUS S2 size contactor main contact replacement kit is compatible with the 3RT1036 series and AC-3 22kW contactors. It includes movable and fixed contacts and mounting parts, and is suitable for regular maintenance and replacement of worn contacts. The original manufacturer has discontinued this product, and it is recommended to replace it with a compatible product from the SIRIUS 3RT2 series.

The Siemens SIRIUS S2 size contactor and overload relay terminal cover are also compatible with the 3RW403 soft starter. The dimensions are approximately 55×22.5×40.2mm. It is installed above the terminal block to enhance protection and reduce the risk of accidental contact with metal terminals. It is suitable for use in panel maintenance and repair projects.

Parallel connector for Siemens SIRIUS S2 size contactors, corresponding to the 3RT1036 series 3-pole contactors. This version does not include connection terminals and is commonly used to connect multiple contactors in parallel to expand contact capacity or form special control circuits. It is suitable for system integrators and panel manufacturers to refer to when purchasing maintenance spare parts.

The Siemens SIRIUS S2 and S3 size contactor diode surge suppression assembly is designed for DC 24V coil circuits. It does not include an LED indicator and is installed at the bottom of the contactor. It can absorb back EMF surges when the coil is de-energized, protecting nearby relays and electronic components for safe operation.

The Siemens SIRIUS S2 and S3 size contactor uses an RC surge absorber, which is compatible with AC 127 to 240V or DC 150 to 240V coil circuits. It is installed on the contactor coil terminals and can reduce the interference and impact of surges on surrounding control components during power failure.

RC surge absorbers for Siemens SIRIUS S2 and S3 size contactors are compatible with AC 48 to 127V or DC 70 to 150V coil circuits. They are installed on the coil terminals to absorb surge voltage during power outages. They are suitable for switchboard designs using medium voltage control circuits and PLC output modules.

The Siemens SIRIUS S2 and S3 size contactor RC surge absorber is designed for AC 24 to 48V or DC 24 to 70V low voltage coil circuits. It weighs approximately 0.027kg and is installed on the coil terminals to suppress power outage surges. The original manufacturer has discontinued production of this product, and the recommended replacement model is 3RT2936-1CB00.

This is a Siemens SIRIUS S2 size contactor main contact replacement kit, compatible with the 3RT1035 series and AC-3 18.5kW contactors. The kit includes movable and fixed contacts and mounting parts, weighing approximately 0.046kg. It is suitable for regular maintenance and replacement of worn contacts. This kit is discontinued by the manufacturer, so please plan your replacement schedule in advance.