The Siemens 3LA0205-1YA is a 3LA0 motor control switch designed for 2-speed pole-changing motor control using the Dahlander connection. Siemens' current price-list documentation identifies the exact article as a 5.5 kW Dahlander 2-speed pole-changing switch for 415 V, 50 Hz, 3-phase applications, with a standard package quantity of 10 pieces.
Important product-identification note: the SKU 3LA0205-1YA is documented by Siemens as the complete motor-control switch, rather than as a separate 1NO+1NC auxiliary-switch accessory. Some third-party listings also identify it as a 2-pole motor control changing switch with a 5.5 kW motor-output rating.
For SB Smart, this product should therefore be positioned primarily as a Siemens industrial motor control switch for supply, replacement and procurement, with the exact accessory/contact arrangement verified before ordering.
The 3LA0205-1YA belongs to the Siemens 3LA0 motor control switch / Superswitch family. The current Siemens price list categorizes it under 2-speed pole-changing, specifically the Dahlander configuration, with a 5.5 kW motor output rating.
This type of switch is intended for manual switching and control of compatible two-speed motors using a Dahlander winding arrangement.
The exact 3LA0205-1YA is listed for a 5.5 kW motor output at 415 V, 50 Hz, 3-phase.
The motor rating should be checked against the actual motor nameplate, operating conditions and switching configuration before selection.
The 3LA0205-1YA is identified specifically as a Dahlander two-speed pole-changing switch.
Dahlander motors use a special winding arrangement to obtain two different speeds through pole changing. A suitable motor-control switch is therefore required to establish the correct switching sequence.
The switch should only be used with a motor and circuit designed for the applicable Dahlander connection.
The Siemens 3LA0 family includes several motor-control functions, including:
On/Off switching
System selection
Reversing
Star-delta switching
Two-speed pole changing
Reversing pole changing
Siemens currently lists 3LA0205-1YA specifically under the Dahlander 2-speed pole-changing category.
The 3LA0 range is intended for motor-control switching applications where the operator manually selects the required switching position.
The 3LA0205-1YA can therefore be used in compatible motor-control panels, machine controls and industrial switching applications where two motor speeds are required.
The switch provides a defined switching arrangement for the connected motor circuit. Correct wiring is essential because a Dahlander motor requires the appropriate pole-changing sequence.
The actual connection should follow the Siemens wiring diagram and the motor manufacturer's connection requirements.
The 3LA0205-1YA can be considered for compatible applications such as:
Two-speed industrial motors
Dahlander motors
Machine tools
Fans and blowers
Industrial pumps
Material-handling equipment
Machine-control panels
Industrial motor-control assemblies
The actual application should be verified against the motor rating and required switching configuration.
The 3LA0 switch family is suitable for industrial electrical control applications where a dedicated motor-control switch is required.
When replacing an existing unit, check:
Motor output
Number of speeds
Dahlander or separate-winding motor type
Supply voltage
Frequency
Number of poles
Switching sequence
Mounting arrangement
Required auxiliary contacts
The product title supplied for this listing mentions Auxiliary switch (1NO+1NC). However, the exact Siemens article 3LA0205-1YA is listed in Siemens' current documentation as the complete 5.5 kW Dahlander 2-speed pole-changing motor-control switch, not as a standalone auxiliary-contact accessory.
Therefore, for an SB Smart product page, it is safer to keep the main product identification as 3LA0205-1YA Motor Control Switch and verify the intended auxiliary-contact accessory separately before publishing a 1NO+1NC specification.
Siemens' current pricing documentation lists related 3LA0 products including:
3LA0203-1YA – Reversing, 5.5 kW
3LA0204-5YA – Star-delta, 12 kW
3LA0205-2YA – 2-speed pole changing, separate windings, 5.5 kW
3LA0205-1YA – 2-speed pole changing, Dahlander, 5.5 kW
3LA0205-3YA – Reversing pole changing, 5.5 kW
This makes the 3LA0 range suitable for different industrial motor-control requirements.
Siemens' current price-list documentation lists 3LA0205-1YA with a standard package quantity of 10 pieces.
This information is useful for procurement, inventory planning and industrial replacement requirements.
The Siemens 3LA0205-1YA is relevant for:
Electrical panel builders
Industrial buyers
Maintenance departments
Electrical contractors
Machine builders
OEM maintenance teams
Electrical product dealers
Replacement-part procurement
For SB Smart, the product is positioned around industrial electrical product supply and procurement, without claiming automation integration or automation-service work.
Siemens 3LA0 / Superswitch family
Article number 3LA0205-1YA
5.5 kW motor output
Dahlander 2-speed pole-changing
415 V
50 Hz
3-phase
Manual motor-control switching application
Suitable for compatible industrial motors
Standard package quantity: 10 pieces
5.5 kW motor compatibility: Suitable for the specified motor-output category.
Dahlander two-speed control: Supports compatible pole-changing motor applications.
Industrial construction: Designed for motor-control switching requirements.
Manual operation: Provides direct operator control of the compatible switching circuit.
Standardized Siemens product: Simplifies identification and procurement.
Multiple 3LA0 variants: Allows selection according to motor-control function.
10-piece standard pack: Useful for industrial stock and procurement.
The Siemens 3LA0205-1YA is a 5.5 kW Dahlander 2-speed pole-changing motor-control switch from the Siemens 3LA0/Superswitch family, designed for 415 V, 50 Hz, 3-phase applications.
It is suitable for customers looking to buy or source Siemens 3LA0 motor-control switches for industrial machinery, two-speed motors, panel maintenance and replacement requirements.
For SB Smart, this product is best presented as a Siemens industrial electrical motor-control component for supply and procurement across India.
SB Smart supplies Siemens industrial electrical products and accessories across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.
Major delivery locations include:
Faridabad
Delhi
Gurgaon/Gurugram
Delhi NCR
Noida
Greater Noida
Haryana
Punjab
Mumbai
Pune
Ahmedabad
Bengaluru
Hyderabad
Chennai
Kolkata
Jaipur
Chandigarh
Lucknow
Indore
Surat
Vadodara
Nagpur
Coimbatore
And other major cities across India
The 3LA0205-1YA is a Siemens 3LA0 motor-control switch for 5.5 kW Dahlander two-speed pole-changing motor applications.
It is designed for a Dahlander two-speed pole-changing motor.
The specified motor output is 5.5 kW.
The Siemens price list specifies 415 V, 50 Hz, 3-phase for this motor-control category.
Siemens' current documentation identifies 3LA0205-1YA as the complete Dahlander motor-control switch, rather than a standalone 1NO+1NC auxiliary-switch accessory.
Yes, it is specifically listed for two-speed pole-changing Dahlander motors.
The family includes reversing, star-delta, separate-winding two-speed, Dahlander two-speed and reversing pole-changing versions.
The published Siemens price list specifies 10 pieces.
Yes, it is intended for compatible industrial motor-control and machine-switching applications.
SB Smart supplies Siemens industrial electrical products and motor-control switches in India for industrial buyers, panel builders, maintenance requirements and replacement procurement.
| Specification | Details |
|---|---|
| Product Name | Motor Control Switch |
| Part Number | 3LA0205-1YA |
| SKU | 3LA0205-1YA |
| Brand | Siemens |
| Product Series | Superswitch 3LA0 |
| Product Type | Motor Control Switch |
| Switching Function | Direct-On-Line (DOL) Motor Control |
| Motor Output Rating | 5.5 kW |
| Rated Current | 25 A |
| Rated Voltage | 415V AC |
| Phase Configuration | 3 Phase |
| Frequency | 50 Hz |
| Execution Type | Open Execution |
| Duty Category | AC-3 |
| Terminal Type | Screw Terminal |
| Mounting Type | Panel Mounted |
| Application | Industrial Motor Control |
| Industry Use | Manufacturing & Automation |
| Manufacturer | Siemens |
No reviews yet.