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header-product Schneider Electric A9E21180 Phase Loss and Sequence Monitoring Relay 8A
151.49 €

Schneider Electric A9E21180 Phase Loss and Sequence Monitoring Relay 8A

Schneider Electric A9E21180 Phase Monitoring Relay Photo 1
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Schneider Electric A9E21180 Phase Loss and Sequence Monitoring Relay 8A

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Schneider Electric A9E21180 Phase Loss and Sequence Monitoring Relay 8A

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Short description

The Schneider Electric A9E21180 is a professional monitoring relay designed to detect phase loss and incorrect phase sequence in electrical systems. With an 8A output rating, this device ensures operational safety and protects equipment from damage caused by power supply irregularities. It is an essential component for industrial and commercial electrical installations requiring reliable phase monitoring and system protection.
Available for order: 6 pcs.
Warranty: 2 Years
SKU: 12460907
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Cost

1.89 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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From 1.89 €
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Product information

Description

The Schneider Electric A9E21180 is a professional monitoring relay engineered to provide precise detection of phase loss and incorrect phase sequence within three-phase electrical systems. By continuously monitoring the supply voltage, this device acts as a critical safeguard, ensuring that connected equipment operates under correct electrical conditions and preventing potential damage caused by phase irregularities. It is designed for integration into industrial and commercial control panels where system reliability and operational safety are paramount.

Advantages

This monitoring relay offers high reliability and consistent performance in demanding electrical environments. Its compact design allows for efficient use of space within distribution boards, while the 8A output rating provides sufficient capacity for standard control circuit applications. By identifying phase faults immediately, the device helps minimize downtime and protects sensitive machinery from the risks associated with improper power supply configurations.

Suitable for

  • Industrial automation systems
  • Commercial building electrical distribution
  • Motor control centers
  • HVAC system protection
  • Three-phase machinery monitoring

When it may not be suitable

This device is specifically designed for three-phase monitoring and is not suitable for single-phase electrical systems. It should not be used in applications requiring high-power switching beyond its 8A contact rating without the use of additional contactors or relays.

Key specifications

  • Function: Phase loss and phase sequence monitoring
  • Output rating: 8A
  • Mounting type: DIN rail
  • System compatibility: Three-phase networks

How to use

The relay is designed for installation on a standard DIN rail within an electrical enclosure. Wiring should be performed by a qualified professional in accordance with the provided technical diagrams, ensuring that the three-phase supply lines are correctly connected to the input terminals. Once installed, the device monitors the phase status automatically, and the output contact will change state if a fault is detected, allowing for the integration of alarm systems or automatic shutdown sequences.

What to consider before purchase

  • Verify that your electrical system is a three-phase configuration
  • Ensure the 8A output rating is sufficient for your control circuit requirements
  • Confirm available space on the DIN rail within your enclosure

Usage recommendations

Regularly inspect the installation to ensure all terminal connections remain secure and free from oxidation. Periodically test the monitoring function during scheduled maintenance to confirm the relay correctly identifies simulated phase faults.

Description

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Customer reviews

Customer questions

FAQ

How much does the Schneider Electric A9E21180 Phase Monitoring Relay cost, and is it available for purchase?

The price is 151.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 14.07.2026 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 Schneider Electric A9E21180 Phase Monitoring Relay 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 Schneider Electric A9E21180 Phase Monitoring Relay 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”;
  • Fill in the required details for the lending partner;
  • 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 Schneider Electric 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 Schneider Electric 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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