Image shown may not reflect the final product

Siemens 3LD3148-0TK53

Name: 3LD3148-0TK53
Brand: Siemens
SKU: 3LD3148-0TK53
Price: 31.05 GBP
Availability: InStock

Wrong part? Click here

£31.05 (ex. VAT)

In stock

Select condition

Learn more about our conditions.

Marvo Stock ID MV-K4XE

HS Code 85365080

SKU 3LD3148-0TK53

Condition New sealed

Warranty 12 months

EAN 4001869550589

Leadtime

Typical lead time: 6 to 7 working days from order to delivery

Need more information?

Call: +44 20 4570 3439

Email: [email protected]

Quoting Marvo Stock ID: MV-K4XE

Returns Hassle-free returns

Thumbs up No hidden fees or duties

Shipping Swift dispatch and delivery

Similar Products

Not found the product you're looking for? Use the search below or

3KD5044-0QE10-0

£1,110.81 (ex. VAT)

1FK2105-6AF10-1SA0

£1,017.94 (ex. VAT)

More about this product

Specification & Description

View now

Commonly Asked Questions

View now

Customer Reviews

View now

Specification & Description

Specification	Description
Part Number	3LD3148-0TK53
Manufacturer	Siemens
Product Brand Name	SENTRON
Product Designation	Switch Disconnector
Design of the Product	EMERGENCY-STOP switch
Number of Poles	3
Mechanical Service Life	100,000 operating cycles
Electrical Endurance	6,000 operating cycles at AC-23 A at 690 V
Operating Frequency	Maximum 50 operations per hour
Degree of Pollution	3
Insulation Voltage	690 V
Surge Voltage Resistance	6 kV
Operating Voltage	690 V AC
Protection Class	IP65
NEMA Rating	1, 3R, 4X, 12
Power Loss	1.1 W per pole in hot operating state
Operational Current	25 A at AC-21 at 690 V
Rated Operating Capacity	9.0 kW at AC-23 A at 400 V
Type of Switch	Floor mounting with door coupling
Actuating Element	Short rotary knob, red/yellow
Dimensions	Height: 60 mm, Width: 36 mm, Depth: 380 mm
Net Weight	300 g
Ambient Temperature	-25 °C to 55 °C during operation
Mounting Method	Built-in unit fixed-mounted version, front mounting with central attachment, rail mounting
Short Circuit Protection	Required fuse gL/gG: 25 A for main circuit, 10 A for auxiliary switch
Conditional Short-Circuit Current	10 kA at 440 V by gG fuse, 6 kA at 690 V by gG fuse
Let-Through Current	Maximum 3.5 kA at 240 V and 440 V, permissible 4 kA at 690 V for combination switch + gG fuse
I2t Value	Maximum 4 kA².s at 240 V, 440 V, and 690 V for combination switch + gG fuse
Type of Electrical Connection	Box terminal for main current circuit and auxiliary contacts
Connectable Conductor Cross-Sections	Solid: 1x (2.5 to 16 mm²), Finely stranded with core end processing: 1x (2.5...16 mm²), Stranded: 1x (2.5 to 16 mm²)
Auxiliary Contacts	Solid: 2x (0.75 ... 2.5 mm²), 1x 4 mm²; Finely stranded with core end processing: 2x (0.75 ... 1.5 mm²), 1x 2.5 mm²; Stranded: 2x (0.75 ... 2.5 mm²), 1x 4 mm²
Special Product Feature	Can be locked in zero position
Product Extension	Optional motor drive: No, Optional voltage trigger: No
Hasp Thickness	4 ... 8 mm
Number of Bracket Locks	Maximum 3

The Siemens 3LD3148-0TK53 is a robust load disconnector designed for reliable performance in industrial applications. This 3-pole switch disconnector, part of the SENTRON family, is engineered to handle a rated operational current of 25 A and is suitable for use as a main switch, switch disconnector, emergency off switch, safety switch, and maintenance/repair switch. It features a floor mounting design with a door coupling and a short rotary knob for manual operation, ensuring ease of use and accessibility. The device is equipped with a red/yellow rotary actuator and offers a high degree of protection with an IP65 rating, making it suitable for demanding environments. With a mechanical service life of up to 100,000 switching cycles and an electrical endurance of 6,000 cycles at AC-23 A at 690 V, this load disconnector is built to last. It supports a wide range of operating temperatures and is designed for fixed mounting, providing flexibility in installation. The Siemens 3LD3148-0TK53 is an ideal choice for those seeking a dependable and versatile load disconnector for their electrical systems.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

How do I create an account?

Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

Peace of mind with every purchase

Dan

‘The ordering was fast and efficient, and everything arrived just as they said it would.’

Thomas Roland Geaughan

‘Prompt and expert service. Ease of access to find the parts I needed.’

Martin Ruml

‘Rapid delivery.’

Blažej Knežo

‘Quick response and fast delivery of the product.’

Irene

‘Fast delivery and prompt action.’

Advance Lifts

‘Great customer service , we needed some assistance quickly and received it.’

Anna

‘I can recommend quick, efficient, and professional.’

Martin Juřica

‘Fast offer, short delivery time.’

Kayden

‘Services is great.’

Muswalin

‘Good packing, quickly delivery and responsible.’

Thomas Roland Geaughan

‘Prompt and expert service. Ease of access to find the parts I needed.’

Kayden

‘Services is great.’

Muswalin

‘Good packing, quickly delivery and responsible.’

Learn more about Marvo

Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the primary function of this load disconnector?

The primary function of the Siemens 3LD3148-0TK53 load disconnector is to safely disconnect electrical circuits, ensuring that maintenance and repair work can be carried out without risk of electric shock.

Can this load disconnector be used as an emergency stop switch?

Yes, the Siemens 3LD3148-0TK53 is designed to function as an emergency stop switch, providing a reliable means to quickly disconnect power in emergency situations.

What is the rated operational current for this load disconnector?

The Siemens 3LD3148-0TK53 load disconnector has a rated operational current of 25 A.

What is the degree of protection offered by this load disconnector?

This load disconnector offers a protection class of IP65, making it suitable for use in environments where it may be exposed to dust and water.

Is the Siemens 3LD3148-0TK53 suitable for use as a main switch?

Yes, the Siemens 3LD3148-0TK53 is suitable for use as a main switch, providing a reliable means to control the power supply to electrical circuits.

What is the mechanical service life of this load disconnector?

The mechanical service life of the Siemens 3LD3148-0TK53 load disconnector is typically 100,000 operating cycles.

What type of mounting does this load disconnector support?

The Siemens 3LD3148-0TK53 supports floor mounting with door coupling and can be mounted using a central hole.

What is the maximum operating voltage for this load disconnector?

The maximum operating voltage for the Siemens 3LD3148-0TK53 load disconnector is 690 V AC.

Can the Siemens 3LD3148-0TK53 be locked in the off position?

Yes, this load disconnector can be locked in the off position, providing an additional safety feature to prevent accidental reconnection.

What is the rated power loss per pole for this load disconnector?

The rated power loss per pole for the Siemens 3LD3148-0TK53 is 1.1 W in a hot operating state.

Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

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.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

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.

The Smart Part

Robotics technology used in smart factories

Smart Factories in Manufacturing: Industrial Leaders in AI

Marvo

Smart factories are changing manufacturing by adopting artificial intelligence. This shift helps manufacturers improve productivity, flexibility, and product quality. Industry leaders in AI understand that adopting smart manufacturing is no longer optional if they want to stay competitive. This article explores how AI-driven smart factories are shaping the sector and why business leaders should move quickly to keep up.

6 min read

June 13, 2025

Companies using AI in manufacturing on the factory floor

How companies are already using AI in manufacturing

Marvo

Manufacturers worldwide are actively integrating AI into their operations for automation, optimisation and innovation. They are harnessing AI's power to enhance efficiency and gain a competitive advantage. Indeed, 93% of industry leaders express excitement about the potential of AI in manufacturing.

6 min read

May 23, 2025

Top 10 benefits of AI manufacturing in 2025

Marvo

Artificial intelligence (AI) is driving a sea change in the manufacturing industry. The strategic and practical benefits of AI in manufacturing are discussed in this article. We will highlight real-world examples and insights that illustrate why adopting AI applications in manufacturing is important for sustainable growth.

10 min read

May 21, 2025

See all articles