The Siemens 3RT2047-1AL208K is a high-performance Siemens SIRIUS 3RT2 power contactor designed for reliable switching and control of three-phase motors and industrial electrical loads. It is rated at 110 A in AC-3e/AC-3 at 400 V and is suitable for motor applications up to 55 kW at 400 V.
This power contactor features a 3-pole main circuit, 230 V AC control voltage, and 50/60 Hz operating frequency. The Size S3 construction provides a robust solution for industrial motor-control panels, automation systems and electrical control cabinets.
The contactor includes 1 NO + 1 NC auxiliary contacts, which can be used for control, feedback, signaling and electrical interlocking functions. Screw terminals provide reliable electrical connections for industrial installations.
The 3RT2047 series is designed for demanding motor-switching applications and is suitable for applications such as pumps, compressors, conveyors, HVAC equipment, machine tools and industrial production machinery. Final contactor selection should be based on the motor's rated current, power, starting conditions and applicable utilization category.
Genuine Siemens SIRIUS Power Contactor
Article Number: 3RT2047-1AL208K
Product Family: SIRIUS 3RT2
Utilization Category: AC-3e/AC-3
Rated Operational Current: 110 A
Motor Power: 55 kW at 400 V
Rated Voltage: 400 V
Number of Poles: 3-pole
Main Contacts: 3 NO
Auxiliary Contacts: 1 NO + 1 NC
Control Voltage: 230 V AC
Control Frequency: 50/60 Hz
Connection Type: Screw Terminal
Contactor Size: S3
Suitable for three-phase motor switching
Suitable for industrial automation and motor-control applications
Designed for demanding industrial switching applications
The Siemens 3RT2047-1AL208K is suitable for:
Three-phase motor control
Motor starting and stopping
Motor Control Centers (MCC)
Industrial automation systems
Machine control panels
Pump control systems
Compressor control
Conveyor systems
HVAC motor applications
Manufacturing machinery
Industrial production equipment
OEM control cabinets
Electrical control panels
Heavy-duty motor switching
Factory automation systems
High 110 A AC-3/AC-3e switching capacity
Suitable for motors up to 55 kW at 400 V
Robust 3-pole power contactor design
230 V AC, 50/60 Hz control coil
1 NO + 1 NC auxiliary contacts for control and signaling
Screw terminals for reliable electrical connections
Durable S3-size construction
Suitable for demanding industrial motor-control applications
Genuine Siemens SIRIUS product
Suitable for OEM, panel-building and maintenance applications
The 3RT2047-1AL208K is a Siemens SIRIUS 3RT2 power contactor designed for three-phase motor switching applications, with a 110 A AC-3e/AC-3 rating, 55 kW motor rating at 400 V, 3-pole configuration and 230 V AC control voltage.
The contactor is rated at 110 A in AC-3/AC-3e at 400 V.
The specified motor power is 55 kW at 400 V for the relevant AC-3 application.
The contactor uses a 230 V AC control voltage with 50/60 Hz operation.
It is a 3-pole power contactor with three main switching poles.
The contactor includes 1 NO + 1 NC auxiliary contacts.
The 3RT2047-1AL208K uses screw terminals for electrical connections.
The contactor is Size S3.
Yes. It is designed for AC-3e/AC-3 motor-switching applications and is rated for 110 A and 55 kW at 400 V. Final selection should be made according to the motor's rated current, power and operating conditions.
It can be used in motor control centers, industrial automation panels, pumps, compressors, conveyors, HVAC systems, manufacturing machinery and industrial motor-control applications.
Yes. Its 110 A rating, 55 kW motor capacity, 230 V AC coil, 1 NO + 1 NC auxiliary contacts and S3 construction make it suitable for demanding industrial control and motor-switching applications.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Brand | Siemens |
| Series | SIRIUS 3RT2 |
| Model Number | 3RT2047-1AL208K |
| SKU | 3RT2047-1AL208K |
| Product Type | Power Contactor |
| Utilization Category | AC-3 |
| Rated Operational Current (AC-3) | 110 A |
| Motor Rating at 400V | 55 kW |
| Number of Poles | 3 Pole |
| Main Contacts | 3 NO |
| Auxiliary Contacts | 1 NO + 1 NC |
| Coil Voltage | 230 V AC |
| Coil Variant | AL208K |
| Frequency | 50/60 Hz |
| Frame Size | S3 |
| Terminal Type | Screw Terminals |
| Rated Insulation Voltage (Ui) | 1000 V |
| Mechanical Life | Up to 10 Million Operations |
| Integrated Suppression | Yes |
| 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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