The Siemens 3LD2504-0TK53 Emergency Stop Switch is a high-performance switch disconnector from the SENTRON 3LD2 Series, designed to provide safe emergency switching, reliable power isolation, and dependable control in industrial electrical systems. This emergency switching-off switch is engineered for machinery, motor control centers, manufacturing plants, process industries, and electrical distribution applications where fast power isolation is critical for personnel and equipment safety.
The 3LD2504-0TK53 is a 3-pole emergency stop switch with a rated uninterrupted current of 63A and an operating power rating of 22 kW at AC-23A, 400V. It features a highly visible red/yellow rotary operating handle specifically designed for emergency shutdown applications and complies with industrial switching requirements for safe isolation.
One of the major advantages of the Siemens 3LD2504-0TK53 is its versatility across a wide range of industrial safety applications. It can be used as:
These capabilities help ensure safe maintenance procedures and rapid emergency power disconnection when required.
The switch incorporates a front-mounted rotary operating mechanism with a red/yellow emergency handle and clear ON/OFF position indication. The distinctive emergency-stop color scheme enables quick identification during critical situations, helping improve operator response times and workplace safety.
A key feature of the 3LD2504-0TK53 Emergency Stop Switch is its robust environmental protection. The device provides IP65 protection from the front, offering excellent resistance against dust and water ingress. This makes it suitable for demanding industrial environments including manufacturing facilities, processing plants, conveyor systems, and outdoor electrical installations.
The switch is rated for operation up to 690V AC and delivers reliable switching performance with an electrical endurance of approximately 6,000 operating cycles and a mechanical life of approximately 100,000 operations. Siemens engineered the SENTRON 3LD2 series for long service life and dependable operation under industrial conditions.
For enhanced safety, the 3LD2504-0TK53 supports lockout/tagout (LOTO) procedures and can accommodate up to three padlocks in the OFF position. This helps prevent accidental energization during maintenance activities and supports industrial safety compliance requirements.
The compact front-mounted design simplifies installation in control panels and switchboards while maintaining convenient operator access. Its rugged construction and proven Siemens reliability make it an excellent choice for industrial power isolation and emergency switching applications.
At SB Smart (SBSmart.in), we supply genuine Siemens industrial electrical and automation products that meet the highest standards of quality, safety, and reliability. The Siemens 3LD2504-0TK53 Emergency Stop Switch delivers trusted Siemens engineering and dependable performance for critical industrial safety applications.
| Specification | Details |
|---|---|
| Product Name | Emergency Switching-Off Switch |
| Part Number | 3LD2504-0TK53 |
| SKU | 3LD2504-0TK53 |
| Brand | Siemens |
| Product Family | SENTRON 3LD2 |
| Product Type | Switch Disconnector |
| Function | Emergency Stop Switch |
| Number of Poles | 3 Pole |
| Rated Current (Iu) | 63 A |
| Operating Power AC-23A at 400V | 22 kW |
| Operating Power AC-23A at 690V | 19 kW |
| Operating Power AC-3 at 400V | 19 kW |
| Rated Operational Voltage | 690 V AC |
| Insulation Voltage (Ui) | 690 V |
| Surge Voltage Resistance | 6 kV |
| Mounting Type | Front Mounted |
| Handle Type | Red/Yellow Rotary Handle |
| Position Indication | ON / OFF |
| Protection Rating | IP65 |
| Pollution Degree | 3 |
| Mechanical Life | 100,000 Operations |
| Electrical Endurance | 6,000 Operations |
| Operating Frequency | Max. 50 Operations/Hour |
| Lockable OFF Position | Yes |
| Maximum Padlocks | 3 |
| Application | Emergency Isolation & Safety Switching |
| Standard Compliance | IEC 60947-3 |
| Manufacturer | Siemens |
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