The Siemens 3LD2164-0TB53 Emergency Stop Switch is a high-quality industrial switch disconnector designed to provide safe electrical isolation, emergency shutdown functionality, and dependable switching performance in demanding industrial environments. As part of the trusted Siemens SENTRON 3LD Series, this emergency switching-off switch is engineered to protect personnel, machinery, and electrical systems by enabling rapid power disconnection during emergency situations, maintenance procedures, and repair operations. Its rugged enclosed construction, IP65 protection rating, and proven Siemens reliability make it an ideal solution for industrial automation systems, machinery installations, power distribution networks, and electrical control panels.
The Siemens 3LD2164-0TB53 is a 3-pole emergency stop switch with a rated operational current of 25A and an operating power of 9.5 kW at AC-23A, 400V. It is supplied in a durable molded-plastic enclosure with metric cable gland provisions and features a highly visible red/yellow rotary operating handle specifically designed for emergency switching applications. Siemens classifies this model as an EMERGENCY-OFF switch, making it suitable for safety-critical industrial installations.
One of the major advantages of the 3LD2164-0TB53 Emergency Stop Switch is its versatility. Siemens confirms that this switch is suitable for multiple industrial functions, including:
This flexibility allows panel builders, electrical contractors, and automation engineers to standardize safety and isolation solutions across various industrial applications.
The switch incorporates a short rotary knob operating mechanism with a red/yellow emergency handle for immediate visual identification. The operating positions are clearly marked as 1 (ON) and 0 (OFF), enabling operators to quickly determine circuit status and react rapidly during emergency conditions. The ergonomic rotary mechanism ensures smooth operation while maintaining high safety standards.
A key feature of the Siemens 3LD2164-0TB53 is its rugged molded-plastic enclosure. This enclosed design protects internal switching components from environmental influences while enhancing operator safety. The enclosure is engineered for industrial use and supports installations where reliable isolation and protection against accidental contact are essential.
The switch provides IP65 protection, offering excellent resistance against dust ingress and water exposure. Siemens also specifies compliance with NEMA 1, 4X, and 12 protection standards, making the switch suitable for harsh industrial environments including manufacturing plants, processing facilities, utility infrastructure, and outdoor electrical installations.
Built for long-term reliability, the 3LD2164-0TB53 offers a mechanical service life of approximately 100,000 operating cycles and electrical endurance of 6,000 cycles at AC-23A, 690V. This durability helps reduce maintenance costs while ensuring dependable operation throughout the product lifecycle.
Safety is further enhanced through support for lockout/tagout (LOTO) procedures. The switch can be locked in the OFF position and supports up to three padlocks, helping maintenance personnel safely isolate equipment before servicing and reducing the risk of accidental energization.
With a rated insulation voltage of 690V, surge voltage resistance of 6kV, and conditional short-circuit withstand capability of 50kA when protected by a suitable gG fuse, the Siemens 3LD2164-0TB53 Emergency Stop Switch delivers outstanding electrical performance and system protection.
At SB Smart (SBSmart.in), we supply genuine Siemens electrical and industrial automation products sourced through trusted channels. The Siemens 3LD2164-0TB53 Emergency Stop Switch provides authentic Siemens engineering, superior safety performance, and long-term reliability for critical industrial applications.
Whether you are building a new control panel, upgrading an electrical distribution system, or implementing a reliable emergency isolation solution, the Siemens 3LD2164-0TB53 delivers the durability, safety, and operational confidence expected from Siemens SENTRON products.
| Specification | Details |
|---|---|
| Product Name | Emergency Switching-Off Switch |
| Part Number | 3LD2164-0TB53 |
| SKU | 3LD2164-0TB53 |
| Brand | Siemens |
| Product Family | SENTRON 3LD |
| Product Type | Switch Disconnector |
| Design | Emergency Stop Switch |
| Number of Poles | 3 Pole |
| Rated Current (Iu) | 25 A |
| Operating Power AC-23A at 400V | 9.5 kW |
| Operating Power AC-23A at 690V | 10 kW |
| Operating Power AC-3 at 400V | 8 kW |
| Operating Power AC-3 at 690V | 7.5 kW |
| Rated Operational Voltage | 690 V AC |
| Insulation Voltage (Ui) | 690 V |
| Surge Voltage Resistance | 6 kV |
| Enclosure Type | Molded Plastic Enclosure |
| Cable Entry | Metric Cable Gland |
| Handle Type | Red / Yellow Rotary Handle |
| Operating Mechanism | Short Rotary Knob |
| Position Indicator | 1 ON – 0 OFF |
| Protection Rating | IP65 |
| NEMA Rating | 1, 4X, 12 |
| Mechanical Life | 100,000 Operations |
| Electrical Endurance | 6,000 Operations |
| Short-Time Withstand Current (Icw) | 640 A / 1 sec |
| Conditional Short Circuit Rating | 50 kA (with gG Fuse) |
| Lockable in OFF Position | Yes |
| Maximum Padlocks | 3 |
| Mounting Type | Complete Unit in Enclosure |
| Operating Temperature | -25°C to +55°C |
| Dimensions (H × W × D) | 152 × 100 × 117 mm |
| Weight | Approx. 414 g |
| Standards Compliance | IEC 60947-3 |
| Manufacturer | Siemens |
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