The Siemens 3LD2704-0TK53 Main Control and Emergency Stop Switch is a robust industrial switch disconnector engineered for safe electrical isolation, emergency shutdown operations, and dependable power control. As part of the renowned SENTRON 3LD2 Series, this switch provides a reliable solution for industrial control panels, power distribution systems, motor control centers, manufacturing facilities, and automation installations where safety and operational continuity are critical. The device is specifically designed as an emergency switching-off switch and delivers the performance expected from Siemens' globally trusted low-voltage switching portfolio.
The 3LD2704-0TK53 features a 3-pole configuration with a rated operational current of 100A and an operational power rating of 37 kW at AC-23A, 400V. These specifications make it suitable for switching and isolating motors, machinery, and power distribution circuits in demanding industrial environments. Siemens classifies this model as a switch disconnector intended for both main switching and emergency stop applications.
One of the key advantages of the Siemens 3LD2704-0TK53 is its dedicated emergency switching-off functionality. During maintenance, repair activities, or emergency situations, operators can quickly disconnect electrical circuits to protect personnel and equipment. The switch serves as a main switch, maintenance switch, safety switch, and emergency stop device, offering versatility across a wide range of industrial applications.
The switch is designed with a front-mounted rotary operating mechanism and a highly visible red/yellow emergency handle. This internationally recognized safety color combination enables quick identification and rapid operation during critical situations. The four-hole handle mounting arrangement provides secure installation and dependable operation throughout the product lifecycle.
A significant benefit of the 3LD2704-0TK53 Emergency Stop Switch is its excellent environmental protection. The switch offers IP65 protection from the front, helping safeguard against dust ingress and water exposure. This makes it suitable for harsh industrial environments including manufacturing plants, processing facilities, utility installations, and outdoor control systems where reliability is essential.
The Siemens SENTRON 3LD2 Series is engineered for durability and long service life. The 3LD2704-0TK53 is designed to withstand demanding industrial conditions while maintaining reliable switching performance. With a rated operating voltage of up to 690V AC and a short-time withstand current of 2kA, the switch supports reliable operation in industrial power systems and motor control applications.
Another important feature is its lockable design. The switch can be secured in the OFF position to support lockout/tagout (LOTO) procedures, helping organizations comply with workplace safety requirements and ensuring safe maintenance operations. Siemens also notes that the 3LD2 series is widely used for maintenance isolation and repair switching applications.
At SB Smart (SBSmart.in), we supply genuine Siemens electrical and industrial automation products sourced through trusted channels. The Siemens 3LD2704-0TK53 Emergency Stop Switch ensures authentic Siemens quality, dependable operation, and long-term reliability for critical industrial applications.
Whether you are designing a new electrical control panel, upgrading a power distribution system, or implementing a reliable emergency isolation solution, the Siemens 3LD2704-0TK53 provides the safety, durability, and operational confidence required for modern industrial environments. Backed by Siemens engineering excellence, it remains a preferred choice among panel builders, electrical contractors, and industrial maintenance professionals.
| Specification | Details |
|---|---|
| Product Name | Main Control & Emergency Stop Switch |
| Part Number | 3LD2704-0TK53 |
| SKU | 3LD2704-0TK53 |
| Brand | Siemens |
| Product Family | SENTRON 3LD2 |
| Product Type | Emergency Switching-Off Switch |
| Number of Poles | 3 Pole |
| Rated Current (Iu) | 100 A |
| Rated Operational Voltage (Ue) | Up to 690 V AC |
| Operating Power AC-23A at 400V | 37 kW |
| Mounting Type | Front Mounted |
| Handle Type | Red / Yellow Rotary Handle |
| Handle Mounting | 4-Hole Mounting |
| Protection Rating | IP65 (Front) |
| Switching Positions | OFF – ON |
| Short-Time Withstand Current (Icw) | 2 kA |
| Lockable | Yes |
| Operating Temperature | -25°C to +55°C |
| Application | Main Switch, Emergency Stop & Isolation |
| Standards Approvals | VDE, UL, CE, UKCA, CSA |
| Manufacturer | Siemens |
No reviews yet.