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header-product Relpol D Module Diode 6-230V DC M21N
5.99 €

Relpol D Module Diode 6-230V DC M21N

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Relpol D Module Diode 6-230V DC M21N

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Short description

The Relpol D module is a diode suppression unit designed for 6-230V DC applications. This M21N series component is engineered to protect relay coils and control circuits from voltage spikes and electromagnetic interference. It ensures reliable operation in industrial automation and control systems, providing effective surge protection and extending the service life of connected switching devices.
Available for order: 80 pcs.
Warranty: 2 Years
SKU: 12469000
Manufacturer: Relpol
delivery
to the Customer Service Center at Kengaraga 2b, Riga
03.07.2026 {{selectedOffer.officeDeliveryString}}
free
Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
03.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
08.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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Latvijas Pasts pakomāts / Unisend / DPD Paku skapis / Omniva / Venipak Pickup / Venipak Locker / Latvijas Pasts nodaļa
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From 1.99 €
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Product information

Description

The Relpol D module is a professional diode suppression unit engineered for 6-230V DC applications. As part of the M21N series, this component serves as a critical protective element for relay coils and sensitive control circuits. By effectively suppressing voltage spikes and mitigating electromagnetic interference, the module ensures the stable and reliable operation of industrial automation systems, ultimately extending the service life of your switching equipment.

Advantages

This diode module provides robust protection against transient overvoltages that can occur during the de-energization of inductive loads. Its compact design allows for seamless integration into existing control panels without requiring significant space. By absorbing back-EMF, it prevents damage to electronic controllers and contactors, ensuring consistent performance and reducing the frequency of maintenance cycles in demanding industrial environments.

Suitable for

  • Industrial automation and control systems
  • Protection of relay coils in DC circuits
  • Mitigation of electromagnetic interference in switching devices
  • Extending the lifespan of contactors and solenoid valves

When it may not be suitable

This module is specifically designed for DC voltage applications and is not compatible with AC circuits. Using this component in an AC environment may lead to device failure or short circuits.

Key specifications

  • Operating voltage range: 6-230V DC
  • Series: M21N
  • Function: Diode suppression
  • Application: Inductive load protection

How to use

The Relpol D module is designed for quick and easy installation directly onto compatible relay sockets. Ensure that the power supply is disconnected before installation. Align the module with the designated slots on the relay base and press firmly until it clicks into place. Verify that the polarity matches the requirements of your specific circuit configuration to ensure the diode functions correctly as a suppression element.

What to consider before purchase

  • Verify that your control circuit operates on DC voltage
  • Check compatibility with your specific relay base model
  • Ensure the voltage range of your application falls within the 6-230V DC limit

Usage recommendations

Always confirm that the diode orientation is correct relative to the coil polarity to ensure effective surge suppression. Regularly inspect the module during scheduled maintenance to ensure connections remain secure and free from corrosion.

Description

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Customer reviews

Customer questions

FAQ

How much does the Relpol D Module Diode 6-230V DC M21N cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 03.07.2026 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. All transactions are 100% secure and encrypted.

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 Relpol 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 Relpol 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.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.