The Siemens 3LA0205-4YA Heavy Duty Switch is a robust industrial switching device engineered for safe power isolation, feeder control, and reliable electrical switching in demanding industrial environments. As part of the trusted Siemens Superswitch 3LA0 Series, this heavy-duty switch is designed to deliver exceptional durability, high making and breaking capacity, and dependable long-term performance. The 3LA0205-4YA is widely used in power distribution systems, industrial control panels, manufacturing facilities, process industries, and commercial electrical installations where reliable circuit control is essential.
The Siemens 3LA0205-4YA is a 2-pole heavy-duty switch rated at 25A, supplied in an open execution design for flexible integration into switchboards, control panels, and custom industrial assemblies. Siemens developed the 3LA0 series specifically for demanding switching applications where safety, reliability, and long service life are critical requirements.
One of the key advantages of the 3LA0205-4YA Heavy Duty Switch is its ability to safely make and break electrical circuits under challenging operating conditions. Siemens specifies that the 3LA0 heavy-duty switches are suitable for distribution network applications and are capable of handling switching duties in circuits operating at lower power factors, making them ideal for industrial feeder control and electrical distribution systems.
The switch features Siemens' modular packet-based construction, providing excellent mechanical strength and reliable contact performance. This design allows the switch to maintain consistent operation even under frequent switching conditions. The rugged internal mechanism helps reduce wear while ensuring dependable circuit control throughout its service life.
A major benefit of the Siemens 3LA0205-4YA is its impressive durability. Siemens specifies that the 3LA0 series supports up to 200 switching operations per hour and offers an exceptional mechanical life of approximately 5 million switching cycles. This long operational life minimizes maintenance requirements and contributes to lower overall ownership costs in industrial applications.
The open execution configuration provides flexibility for panel builders and OEM manufacturers. The switch can be integrated into a variety of enclosure designs and control systems while maintaining easy accessibility for installation and wiring. Siemens also designed the terminals for simple conductor connection, helping reduce installation time and improve wiring efficiency.
Another important advantage of the 3LA0205-4YA is its compatibility with Siemens accessories such as protective covers, locking devices, door interlocks, and front-drive operating mechanisms. These optional accessories allow system designers to enhance safety, improve operator convenience, and support lockout/tagout (LOTO) procedures when required.
The switch is suitable for a broad range of industrial applications including power distribution, feeder switching, machine control systems, utility infrastructure, and industrial automation installations. Its compact design and proven Siemens engineering make it a preferred choice for engineers seeking dependable switching solutions for critical electrical systems.
At SB Smart (SBSmart.in), we provide genuine Siemens electrical and industrial automation products that meet the highest standards of quality, reliability, and performance. The Siemens 3LA0205-4YA Heavy Duty Switch delivers authentic Siemens engineering and dependable operation for critical industrial switching applications.
Whether you are designing a new electrical distribution panel, upgrading an industrial control system, or implementing a reliable feeder switching solution, the Siemens 3LA0205-4YA offers the durability, safety, and long-term performance expected from Siemens industrial products.
| Specification | Details |
|---|---|
| Product Name | Heavy Duty Switch |
| Part Number | 3LA0205-4YA |
| SKU | 3LA0205-4YA |
| Brand | Siemens |
| Product Series | Superswitch 3LA0 |
| Product Type | Heavy Duty Switch |
| Execution Type | Open Execution |
| Number of Poles | 2 Pole |
| Rated Current AC-22A | 25 A |
| Rated Current AC-23A | 16 A |
| Rated Voltage | Up to 500V AC |
| Frequency | 50 Hz |
| Application Category | Heavy Duty Switching |
| Switching Operations | Up to 200 Cycles/Hour |
| Mechanical Life | Approx. 5 Million Operations |
| Terminal Type | Screw Terminals |
| Mounting Type | Panel Mounted |
| Accessory Compatibility | Protective Cover, Locking Disc, Door Interlock |
| Application | Distribution & Feeder Control |
| Country of Origin | India |
| Manufacturer | Siemens Limited |
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