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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3LD2704-0TK53 |
| Alternative Part Number | 3LD27040TK53 |
| Manufacturer | Siemens |
| Product Type | Switch Disconnector |
| Rated Operational Voltage | 690 V |
| Rated Current | 100 A |
| Mounting Type | Fixed Mount |
| Dimensions | 90 x 112.9 x 90 mm |
| Number of Poles | 3-pole |
| Operating Mechanism | Rotary actuator, red/yellow |
| Protection Class | IP65 |
| Continuous Current | 100 A |
| Short-time Current Resistance | 2,000 A (at 690 V, limited to 1 s) |
| Operating Frequency | 50 Hz initial value, 60 Hz full-scale value |
| Operating Power | At AC-23 A / 400 V: 37 kW, At AC-23 A / 690 V: 30 kW, At AC-3 / 400 V: 30 kW, At AC-3 / 690 V: 22 kW |
| Insulation Voltage | 690 V rated value |
| Surge Voltage Resistance | 6,000 V rated value |
| Mechanical Service Life | 100,000 switching cycles for main contacts |
| Suitability for Use | Main switch, switch disconnector, EMERGENCY OFF switch, safety switch, maintenance/repair switch |
| Product Feature | Interlock |
The Siemens 3LD2704-0TK53 is a robust switch disconnector designed to ensure a high level of safety and reliability for industrial applications. This three-pole emergency switching-off switch is rated for 100 A and can handle operating voltages up to 690 V, making it suitable for a wide range of power distribution tasks. With a fixed mount design, it measures 90 x 112.9 x 90 mm, fitting seamlessly into various control panels and machinery interfaces.
Crafted for durability and consistent performance, the switch features a rotary actuator with a red/yellow colour scheme, which is universally recognised for emergency stop functions. The IP65 protection class signifies that the unit is dust-tight and protected against jets of water, ensuring it can withstand harsh industrial environments.
The switch disconnector is versatile, doubling as a main switch, safety switch, maintenance/repair switch, and more, highlighting its adaptability across different roles. Its mechanical service life is impressive, with the ability to perform reliably through numerous operating cycles.
Engineered with user safety in mind, the Siemens 3LD2704-0TK53 is finger-safe and comes with an interlock feature to prevent accidental or unauthorised operation. Its compact dimensions and straightforward four-hole mounting process facilitate easy installation, making it a practical choice for engineers and electricians looking to maintain or upgrade power management systems.
Overall, the Siemens 3LD2704-0TK53 switch disconnector is a testament to Siemens' commitment to quality, offering a dependable solution for controlling power in industrial settings.
Commonly Asked Questions
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Frequently Asked Questions
What is the voltage rating for this switch disconnector?
The switch disconnector is rated for an insulation voltage of 690 V.
Can this switch disconnector be used as an emergency stop switch?
Yes, it is designed to function as an emergency stop switch with a red/yellow rotary actuator for visibility and safety.
What is the continuous current rating of this device?
The device has a continuous current rating of 100 A.
What are the dimensions of this switch disconnector?
The dimensions are 90 x 112.5 x 107 mm (Width x Depth x Height).
What type of mounting does this switch support?
It supports front mounting with a four-hole attachment.
What is the protection class of this switch disconnector?
The protection class for this device is IP65, indicating a high level of protection against dust and water jets.
What is the mechanical service life of the main contacts?
The main contacts have a mechanical service life of typically 100,000 operating cycles.
Is there an interlock feature available on this switch disconnector?
Yes, it comes with an interlock feature to enhance safety during maintenance and operation.
What is the short-time current resistance of this device?
The short-time current resistance (Icw) at 690 V, limited to 1 s, is rated at 2,000 A.
What types of conductors can be connected to the main contacts?
The main contacts can accommodate solid or stranded conductors ranging from 4 mm² to 50 mm², and finely stranded conductors with core end processing up to 35 mm².
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
