Siemens 5TT5040-2 Modular Contactor

Name: Siemens 5TT5040-2 Modular Contactor 40A 5TT5040-2
Brand: Siemens
SKU: 1779965
Price: 89.99 EUR
Availability: InStock

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Siemens 5TT5040-2 Modular Contactor 40A 4NO 230V AC

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Short description

The Siemens 5TT5040-2 is a high-quality modular contactor designed for reliable electrical switching in industrial and residential applications. Featuring a 40A current rating and 4 normally open (NO) contacts, it operates on a 230V AC control voltage. This compact device ensures efficient circuit control and is built to meet rigorous safety standards for long-term performance in electrical distribution systems.

Available for order: 1 pcs.

Warranty: 2 Years

SKU: 1779965

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From 4.99 € (Weight: 0.40 kg)

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36 months installment: from 2.50 euros per month

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Product information

Description

The Siemens 5TT5040-2 modular contactor is a robust electrical switching device engineered for precise control in both residential and industrial electrical distribution systems. This unit is designed to handle a rated current of 40A and features four normally open (NO) contacts, providing reliable performance for various switching tasks. Operating on a 230V AC control voltage, it ensures seamless integration into standard electrical panels, offering a compact and efficient solution for managing high-load circuits with consistent reliability.

Advantages

This modular contactor stands out due to its high build quality and adherence to strict safety standards, which guarantee long-term operational stability. Its compact design allows for space-saving installation within distribution boards, while the four normally open contacts provide versatile switching capabilities for complex electrical setups. The device is built to withstand the demands of frequent switching operations, ensuring minimal maintenance and high durability in diverse environments.

Suitable for

Residential lighting and heating control systems
Industrial automation and motor control circuits
Switching of high-current electrical loads
Integration into smart home distribution panels

When it may not be suitable

This contactor is not intended for use in circuits exceeding its 40A current rating or for applications requiring a DC control voltage. It is also not suitable for environments with extreme moisture or corrosive atmospheres unless housed in an appropriately rated protective enclosure.

Key specifications

Rated current: 40A
Contact configuration: 4 normally open (NO) contacts
Control voltage: 230V AC
Weight: 0.417 kg
Design: Modular for DIN rail mounting

How to use

The device should be installed by a qualified electrician onto a standard DIN rail within an electrical distribution board. Ensure that the supply voltage matches the 230V AC specification before making any connections. The control wires should be connected to the coil terminals, and the load circuits should be wired to the corresponding normally open contact terminals, ensuring all connections are tightened to the manufacturer's specified torque to prevent overheating.

What to consider before purchase

Verify that your circuit load does not exceed the 40A limit
Ensure your control system provides a 230V AC signal
Check available space in your distribution board for modular mounting
Confirm the number of contacts required for your specific application

Usage recommendations: Regularly inspect the contactor for any signs of wear or loose connections during routine maintenance of your electrical system to ensure continued safe operation.

Specifications

Weight:: 0.417 kg
Product colour:: Multicolour

Description

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Customer questions

FAQ

How much does the Siemens 5TT5040-2 Modular Contactor cost, and is it available for purchase?

The price is 89.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Siemens 5TT5040-2 Modular Contactor be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Siemens 5TT5040-2 Modular Contactor online, and the application process is as simple as possible:

Select the product on the website and add it to your cart;
When placing your order, choose the payment method “Installments”;
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Receive a decision within a few minutes.

For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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