Product Description

Siemens Main Control and Emergency Stop Switches 3LD2 – 3LD2504-0TK51

The Siemens 3LD2504-0TK51 Switch Disconnector is a robust and reliable main control switch engineered for safe electrical isolation, machine control, and power distribution applications. As part of the trusted Siemens SENTRON 3LD2 Series, this switch disconnector is designed to deliver dependable switching performance, enhanced operational safety, and long service life in industrial environments. It is ideally suited for control panels, motor control centers, OEM machinery, power distribution systems, and maintenance isolation applications.

The 3LD2504-0TK51 is a 3-pole switch disconnector with a rated current of 63A and an operating power rating of 22 kW at AC-23A, 400V. Siemens specifically identifies this model as a main switch featuring a front-mounted rotary operating mechanism with black handle and four-hole mounting configuration. These characteristics make it a dependable solution for industrial switching and isolation requirements.

One of the major advantages of the Siemens 3LD2504-0TK51 is its ability to provide secure isolation during maintenance and servicing operations. Safe isolation is a critical requirement in industrial facilities, and this switch disconnector enables operators to disconnect electrical equipment quickly and effectively. Siemens classifies the device for use as a main switch, maintenance switch, and safety switch in industrial installations.

The switch incorporates a front-mounted rotary operating mechanism with clearly marked ON and OFF positions, allowing operators to monitor equipment status at a glance. The ergonomic black rotary handle ensures smooth operation while minimizing the possibility of switching errors. The four-hole mounting arrangement provides secure installation and long-term mechanical stability.

A key feature of the 3LD2504-0TK51 Switch Disconnector is its IP65 front protection rating, which provides excellent resistance against dust and water ingress. This makes the switch suitable for challenging industrial environments where reliability is essential. Whether installed in manufacturing facilities, process plants, infrastructure projects, or utility applications, the switch delivers consistent performance under demanding conditions.

The Siemens SENTRON 3LD2 Series is widely recognized for durability and operational reliability. The 3LD2504-0TK51 supports operating voltages up to 690V AC and is designed according to international standards for switch disconnectors. Its rugged construction ensures dependable operation while reducing maintenance requirements and supporting long-term system reliability.

Another important advantage is the switch's lockable design. The 3LD2504-0TK51 can be locked in the OFF position, supporting lockout/tagout (LOTO) procedures and helping organizations maintain safe working practices during equipment maintenance and repair activities. This feature is especially valuable in industrial facilities where safety compliance is a priority.

Typical Applications

• Industrial Control Panels
• Motor Control Centers (MCCs)
• Power Distribution Systems
• Manufacturing Facilities
• Process Automation Plants
• OEM Machinery
• Utility Infrastructure Projects
• Electrical Isolation Systems
• Maintenance and Safety Applications

At SB Smart (SBSmart.in), we supply genuine Siemens electrical and industrial automation products that meet the highest standards of quality, safety, and performance. The Siemens 3LD2504-0TK51 Switch Disconnector ensures authentic Siemens engineering and dependable operation for critical industrial applications.

Whether you are building a new electrical panel, upgrading an existing power distribution system, or implementing a reliable isolation solution, the Siemens 3LD2504-0TK51 delivers the safety, durability, and performance expected from Siemens SENTRON products.