The Siemens 3RT2038-1AL208K is a high-performance SIRIUS 3RT2 Series power contactor designed for reliable motor switching and industrial automation applications. Engineered for AC-3 duty, this 3-pole contactor is rated for 80A operational current and is suitable for controlling three-phase motors up to 37kW at 400V, making it ideal for pumps, compressors, conveyors, fans, HVAC equipment, machine tools, and industrial process systems.
Equipped with a 230V AC, 50/60Hz operating coil (Variant AL208K), the contactor ensures dependable switching performance in demanding industrial environments. The AL208K coil variant includes an integrated suppression module that helps reduce switching transients, minimize electromagnetic interference, and protect sensitive control electronics, improving overall system reliability.
The contactor features 3 Normally Open (3NO) main contacts and 1 Normally Open (1NO) + 1 Normally Closed (1NC) auxiliary contacts as standard. This integrated auxiliary contact configuration enables efficient motor control, signaling, monitoring, and interlocking functions without requiring additional accessories, helping optimize panel space and reduce installation complexity.
Built in the compact yet robust S2 frame size, the 3RT2038-1AL208K utilizes durable screw terminal connections for secure conductor termination, quick installation, and simplified maintenance. Its rugged design makes it suitable for motor control centers (MCCs), industrial control panels, OEM machinery, manufacturing facilities, and process automation systems.
Manufactured according to Siemens SIRIUS quality standards, the contactor provides a rated insulation voltage of up to 1000V, high electrical endurance, and a mechanical service life of up to 10 million operating cycles, ensuring long-term operational reliability even in harsh industrial environments.
As part of the trusted Siemens SIRIUS 3RT2 contactor family, the 3RT2038-1AL208K offers seamless compatibility with Siemens overload relays, motor starters, auxiliary contact blocks, and industrial automation products, making it a dependable solution for modern motor control applications.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Brand | Siemens |
| Series | SIRIUS 3RT2 |
| Model Number | 3RT2038-1AL208K |
| SKU | 3RT2038-1AL208K |
| Product Type | Power Contactor |
| Utilization Category | AC-3 |
| Rated Operational Current (AC-3) | 80 A |
| Motor Rating at 400V | 37 kW |
| Number of Poles | 3 Pole |
| Main Contacts | 3 NO |
| Auxiliary Contacts | 1 NO + 1 NC |
| Coil Voltage | 230 V AC |
| Coil Frequency | 50/60 Hz |
| Coil Variant | AL208K |
| Integrated Suppression Module | Yes |
| Frame Size | S2 |
| Terminal Type | Screw Terminals |
| Rated Insulation Voltage (Ui) | Up to 1000 V |
| Protection Class | IP20 |
| Mechanical Life | Up to 10 Million Operations |
| Mounting Type | Panel Mount |
| Operating Temperature | -25°C to +60°C |
| Application | Motor Control & Industrial Switching |
| Product Family | Siemens SIRIUS Contactors |
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