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Marvo Part ID: MV-29E5

£54.00 (ex. VAT)


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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

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3LD2704-0TK53 Product Description

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.

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.