The Siemens 3LA0204-5YA is a 3LA0 motor control switch designed for star-delta starting and motor-control applications. Siemens price-list documentation identifies the exact article as a 12 kW star-delta motor control switch for 415 V, 50 Hz, 3-phase applications.
Important product-identification note: although the supplied product title describes “Accessories for Superswitch, Auxiliary switch (1NO+1NC)”, available Siemens-related documentation identifies 3LA0204-5YA as the complete 3LA0 star-delta motor control switch, not as a standalone 1NO+1NC auxiliary-switch accessory.
For SB Smart, this product should therefore be positioned primarily as a Siemens industrial motor control switch for supply, replacement and procurement, while the 1NO+1NC accessory specification should be verified separately before publishing it as an auxiliary-contact product.
The 3LA0204-5YA belongs to the Siemens 3LA0 / Superswitch motor-control switch family. The Siemens price list places it under Star-delta motor-control switches with a 12 kW motor-output rating.
The switch is intended for manual control of compatible three-phase motors requiring a star-delta switching arrangement.
The exact 3LA0204-5YA is specified for a 12 kW motor output at 415 V, 50 Hz, 3-phase.
The motor nameplate, starting method and actual operating conditions should be checked before selecting the switch.
The 3LA0204-5YA is designed for star-delta motor control.
A star-delta arrangement uses different motor winding connections during starting and normal operation. The switching sequence must be correctly matched to the motor terminals and the intended control circuit.
The installation should follow the Siemens connection arrangement and the motor manufacturer's wiring requirements.
The Siemens 3LA0 family includes various motor-control switching functions, such as:
On/Off switching
System selection
Reversing
Star-delta switching
Two-speed pole changing
Reversing pole changing
Siemens lists 3LA0204-5YA specifically under the 12 kW star-delta category.
The 3LA0 range is intended for motor-control switching applications in which the operator selects the required switch position manually.
The 3LA0204-5YA can therefore be used in compatible industrial machinery and motor-control panels where a dedicated star-delta switching arrangement is required.
The 3LA0204-5YA can be considered for compatible applications such as:
Industrial three-phase motors
Star-delta motor starters
Machine tools
Pumps
Fans and blowers
Compressors
Material-handling equipment
Industrial machinery
Motor-control panels
Actual suitability should be verified against the motor rating, winding arrangement and switching requirements.
The 3LA0204-5YA is relevant for industrial electrical panels where a manual motor-control switch is required.
Before selecting or replacing the product, check:
Motor power
Supply voltage
Frequency
Phase configuration
Star-delta connection requirement
Switching arrangement
Mounting configuration
Required auxiliary contacts
The supplied listing describes the product as an auxiliary switch with 1NO + 1NC contacts. However, available Siemens product documentation identifies 3LA0204-5YA as a complete 12 kW star-delta motor-control switch, rather than a separate auxiliary-contact accessory.
Therefore, the 1NO + 1NC specification should not be published as a confirmed specification for 3LA0204-5YA without verifying the exact accessory/article configuration.
This distinction is important for avoiding incorrect product information on an e-commerce page.
The Siemens 3LA0 range includes related configurations such as:
3LA0201-1YA – On/Off, 7.5 kW
3LA0202-1YA – System selector, 5.5 kW
3LA0203-1YA – Reversing, 5.5 kW
3LA0204-5YA – Star-delta, 12 kW
3LA0205-2YA – Two-speed, separate windings, 5.5 kW
3LA0205-1YA – Two-speed, 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-related price-list documentation lists the 3LA0204-5YA with a standard package quantity of 10 pieces.
This information can be useful for procurement and inventory planning.
The Siemens 3LA0204-5YA 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 3LA0204-5YA
12 kW motor output
Star-delta motor-control function
415 V
50 Hz
3-phase
Manual motor-control switching application
Suitable for compatible industrial motors
Standard package quantity: 10 pieces
12 kW motor compatibility: Suitable for the specified motor-output category.
Star-delta switching: Designed for compatible star-delta motor-control applications.
Industrial application: Suitable for machinery and motor-control panels.
Manual operation: Provides direct operator control of the motor switching circuit.
Standardized Siemens product: Simplifies identification and procurement.
Established 3LA0 family: Provides multiple switching configurations for industrial motor control.
10-piece standard pack: Useful for procurement and inventory planning.
The Siemens 3LA0204-5YA is a 12 kW star-delta 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, motor-control panels, 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 3LA0204-5YA is a Siemens 3LA0 motor-control switch designed for 12 kW star-delta motor applications.
The specified motor output is 12 kW.
It is designed for star-delta motor control.
The Siemens price-list documentation specifies 415 V, 50 Hz, 3-phase for the relevant motor-control category.
Available Siemens-related documentation identifies 3LA0204-5YA as the complete 12 kW star-delta motor-control switch, rather than a standalone 1NO+1NC auxiliary switch.
Yes, it is specifically listed for star-delta motor-control applications.
The family includes On/Off, system-selector, reversing, star-delta, two-speed and reversing pole-changing variants.
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 | Heavy Duty Changeover Switch |
| Part Number | 3LA0204-5YA |
| SKU | 3LA0204-5YA |
| Brand | Siemens |
| Product Series | Superswitch 3LA0 |
| Product Type | Changeover Switch |
| Switching Function | Manual Changeover |
| Number of Poles | 2 Pole |
| Rated Current | 25 A |
| Execution Type | Open Execution |
| Mounting Type | Panel Mounted |
| Terminal Type | Screw Terminal |
| Application | Circuit & Power Source Changeover |
| Industrial Use | Yes |
| Construction | Heavy Duty Industrial Design |
| Suitable For | Control Panels & Distribution Systems |
| Product Category | Industrial Switching Device |
| Manufacturer | Siemens |
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