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The Siemens 3RT2 Contactor is a compact, climate-proof industrial contactor designed for reliable motor control and switching applications in global electrical systems. Built for demanding automation and power distribution environments, this 3-pole contactor supports a 24 V coil and 9 A operating current, with a 4 kW switching capacity at 400 V. It features 3 normally open (3 NO) auxiliary arrangement and is engineered for use in control panels, motor starters, and machine automation systems where dependable switching performance is required. Part of the Siemens 3RT2 range, this contactor is suitable for worldwide deployment and has been tested for international application standards. It offers screw connection / spring clamp options for secure installation, a high impulse voltage resistance of 6 kV, and insulation voltage rated up to 690 V. With a real loss power of only 4 W, it is energy-efficient and suitable for continuous industrial operation. This Siemens 3RT2 contactor is ideal for OEMs, panel builders, electrical contractors, and industrial automation integrators looking for a trusted switching device with compact dimensions and strong compliance credentials. It is approved under CE, UL, CSA, and CCC standards, making it suitable for export-ready B2B electrical procurement. The contactor is particularly well-suited for motor control setups, load switching circuits, and machine-building applications that require long service life, safety, and consistent performance. For businesses sourcing Siemens industrial contactors, the 3RT2 model offers a balance of compact design, electrical durability, and international certification. Its climate-proof construction and robust specifications make it a dependable choice for control panels and automation systems across manufacturing, processing, and infrastructure sectors.
Key Features
| Features | Description |
|---|---|
| Brand | Siemens |
| Series | 3RT2 Range |
| Pole Configuration | 3-Pole |
| Coil Voltage | 24 V |
| Rated Current | 9 A |
| Power Rating | 4 kW at 400 V |
| Auxiliary Contact Arrangement | 3 NO |
| Mounting / Connection Type | Screw Connection / Spring Clamp |
| Voltage Resistance | Impulse Voltage Resistance 6 kV |
| Compliance | CE, UL, CSA, CCC |
| Attributes | Description |
|---|---|
| Product Title | Siemens 3RT2 Contactor |
| Type | Industrial Contactor |
| Pole Count | 3-Pole |
| Coil Voltage | 24 V |
| Rated Operational Current | 9 A |
| Motor Power | 4 kW |
| Rated Voltage | 400 V |
| Auxiliary Contacts | 3 NO |
| Insulation Voltage | 690 V |
| Impulse Voltage Resistance | 6 kV |
| Total Loss Power | 4 W |
| Connection Type | Screw Connection / Spring Clamp |
| Climate Proof | Yes |
| Series Size | S00 to S2 |
| Approvals | CE, UL, CSA, CCC |
| Application | Motor Control, Load Switching, Control Panels, Automation Systems |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Yes, this contactor is rated for 4 kW at 400 V, making it suitable for low-power motor switching and control applications at that voltage level.
The 3 NO configuration indicates three normally open contacts, which are used in control circuits where contact closure is required during activation.
Yes, it is suitable for export-oriented panel builds because it carries CE, UL, CSA, and CCC approvals and is tested for worldwide use.
The contactor supports screw connection and spring clamp connection options, allowing flexible installation in industrial control panels.
With only 4 W real loss power, the contactor is energy-efficient and helps reduce heat generation, which is beneficial in enclosed control cabinets and continuous-duty applications.
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