The Siemens 3LD2203-0TK53 Emergency Stop Switch is a robust and reliable switch disconnector engineered to provide safe electrical isolation, emergency shutdown functionality, and dependable switching performance in industrial environments. As part of the trusted Siemens SENTRON 3LD2 Series, this device is specifically designed for applications where personnel safety, equipment protection, and operational reliability are critical. With its highly visible red and yellow rotary handle, rugged construction, and IP65 protection rating, the 3LD2203-0TK53 is an ideal choice for industrial control panels, machinery, power distribution systems, OEM equipment, and automation installations.
The Siemens 3LD2203-0TK53 is a 3-pole emergency switching-off switch rated at 32A with an operating power of 11.5 kW at AC-23A, 400V. Designed for front mounting with a rotary operating mechanism and four-hole handle mounting arrangement, it provides reliable switching and safe emergency isolation whenever required. Siemens officially classifies this model as an emergency switching-off switch within the SENTRON 3LD product range.
One of the most important benefits of the 3LD2203-0TK53 Emergency Stop Switch is its ability to serve multiple industrial safety functions. The switch is suitable for use as:
This versatility allows system integrators and panel builders to standardize switching and isolation solutions throughout industrial facilities.
The switch features a red/yellow rotary operating handle, an internationally recognized color combination for emergency switching devices. During emergency situations, operators can quickly identify and operate the switch, helping minimize response times and improve workplace safety. The front-mounted rotary mechanism ensures smooth operation while providing clear indication of the switch position.
A major advantage of the Siemens 3LD2203-0TK53 is its rugged environmental protection. The switch offers an IP65 protection rating, making it highly resistant to dust ingress and water exposure. This protection level enables reliable operation in demanding industrial environments such as manufacturing plants, processing facilities, utility infrastructure, and outdoor installations.
The 3LD2203-0TK53 is designed for long-term durability and operational reliability. Siemens 3LD switch disconnectors are engineered to provide dependable performance under frequent switching conditions while maintaining high safety standards. The switch supports operation in temperatures ranging from -25°C to +55°C, making it suitable for a broad range of industrial applications.
Another important feature is its support for lockout/tagout (LOTO) procedures. The switch can be locked in the OFF position using up to three padlocks, helping maintenance personnel safely isolate equipment before servicing and reducing the risk of accidental energization. This capability contributes significantly to workplace safety compliance and maintenance efficiency.
With a rated operational voltage of 690V AC, rated current of 32A, and operating power of 11.5 kW, the switch provides reliable performance for motor isolation, machinery shutdown, and power distribution applications. Its compact design and front-mounted installation make it easy to integrate into modern control panels and switchboards.
At SB Smart (SBSmart.in), we provide genuine Siemens electrical and industrial automation products that meet the highest standards of safety, reliability, and performance. The Siemens 3LD2203-0TK53 Emergency Stop Switch ensures authentic Siemens engineering and dependable operation for critical industrial applications.
Whether you are upgrading an existing electrical installation, building a new control panel, or implementing a reliable emergency isolation solution, the Siemens 3LD2203-0TK53 delivers the safety, durability, and operational confidence expected from Siemens SENTRON products.
| Specification | Details |
|---|---|
| Product Name | Emergency Switching-Off Switch |
| Part Number | 3LD2203-0TK53 |
| SKU | 3LD2203-0TK53 |
| Brand | Siemens |
| Product Family | SENTRON 3LD2 |
| Product Type | Switch Disconnector |
| Function | Emergency Stop Switch |
| Number of Poles | 3 Pole |
| Rated Current (Iu) | 32 A |
| Operating Power AC-23A at 400V | 11.5 kW |
| Rated Operational Voltage (Ue) | 690 V AC |
| Mounting Type | Front Mounted |
| Operating Mechanism | Rotary Operating Mechanism |
| Handle Type | Red / Yellow Rotary Handle |
| Handle Mounting | 4-Hole Mounting |
| Protection Rating | IP65 |
| Operating Temperature | -25°C to +55°C |
| Lockable in OFF Position | Yes |
| Padlock Capability | Up to 3 Padlocks |
| Application | Emergency Stop, Safety Isolation & Power Control |
| Standards Compliance | IEC 60947-3 |
| Manufacturer | Siemens |
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