The Siemens 3LD2264-0TB51 Switch Disconnector is a high-quality industrial switching device designed to provide safe isolation, reliable power control, and dependable switching performance in low-voltage electrical installations. As part of the globally trusted Siemens SENTRON 3LD Series, this switch disconnector is engineered for use as a main switch, safety switch, and maintenance switch across a wide range of industrial and commercial applications. Featuring a rugged molded-plastic enclosure, IP65 protection, and a durable rotary operating mechanism, the 3LD2264-0TB51 delivers outstanding reliability in demanding environments.
The Siemens 3LD2264-0TB51 is a 3-pole switch disconnector rated at 32A, designed for safe switching and isolation of electrical circuits. It offers an operating power rating of approximately 11.5 kW at AC-23A, 400V, making it suitable for motor control applications, machinery isolation, power distribution systems, and industrial automation panels. Siemens specifically classifies this model as a main switch and switch disconnector, ensuring reliable circuit isolation whenever maintenance or servicing is required.
One of the key advantages of the 3LD2264-0TB51 is its molded-plastic enclosed design with provisions for metric cable glands. This enclosed construction enhances operator safety while protecting internal components from environmental influences such as dust, moisture, and contaminants. The switch is ideally suited for industrial installations where equipment protection and operational reliability are critical requirements.
The switch incorporates a black rotary operating mechanism with clearly marked ON and OFF positions. This simple yet effective design enables operators to quickly determine switch status while ensuring smooth and reliable switching operations. The ergonomic rotary handle is engineered for frequent use and contributes to the product's long service life.
A major benefit of the Siemens 3LD2264-0TB51 Switch Disconnector is its excellent environmental protection. The unit carries an IP65 protection rating, providing superior resistance against dust ingress and water exposure. In addition, Siemens specifies NEMA 1, 4X, and 12 ratings, making the switch suitable for installation in harsh industrial environments, manufacturing facilities, utility infrastructure, processing plants, and outdoor electrical systems.
The 3LD2264-0TB51 is designed for long-term durability and operational reliability. Siemens specifies a mechanical life of approximately 100,000 switching operations, ensuring dependable performance throughout years of service. The switch also offers electrical endurance of up to 6,000 operating cycles at AC-23A, 690V, making it suitable for demanding industrial applications involving regular switching operations.
Another important feature is the switch's ability to be locked in the OFF position, supporting lockout/tagout (LOTO) safety procedures. This capability helps maintenance personnel safely isolate electrical equipment before servicing, reducing workplace risks and improving compliance with industrial safety standards.
The switch also provides excellent short-circuit performance with a conditional short-circuit current rating of up to 50 kA when protected by an appropriate gG fuse, contributing to enhanced system protection and operational safety.
At SB Smart (SBSmart.in), we supply genuine Siemens electrical and industrial automation products sourced through trusted channels. The Siemens 3LD2264-0TB51 Switch Disconnector ensures authentic Siemens quality, dependable operation, and long-term performance for mission-critical industrial applications.
Whether you are designing a new control panel, upgrading an existing power distribution system, or implementing a reliable isolation solution, the Siemens 3LD2264-0TB51 offers the safety, durability, and performance expected from Siemens SENTRON products.
| Specification | Details |
|---|---|
| Product Name | Main Control Switch / Switch Disconnector |
| Part Number | 3LD2264-0TB51 |
| SKU | 3LD2264-0TB51 |
| Brand | Siemens |
| Product Family | SENTRON 3LD |
| Product Type | Switch Disconnector |
| Number of Poles | 3 Pole |
| Rated Current (Iu) | 32 A |
| Operating Power AC-23A at 400V | 11.5 kW |
| Rated Operational Voltage | Up to 690 V AC |
| Mounting Type | Molded Plastic Enclosure |
| Operating Mechanism | Rotary Operating Mechanism |
| Handle Color | Black |
| Enclosure Type | Metric Cable Gland Enclosure |
| Protection Rating | IP65 |
| NEMA Rating | 1, 4X, 12 |
| Mechanical Life | 100,000 Operations |
| Electrical Endurance | 6,000 Operations |
| Lockable in OFF Position | Yes |
| Short Circuit Rating | 50 kA (with suitable gG fuse) |
| Application | Main Switch, Safety Switch, Maintenance Switch |
| Standards Compliance | IEC 60947-3 |
| Manufacturer | Siemens |
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