# Pollin AZF-4 Automatic Phase Switch 16A 250V for TH35 DIN Rail

**URL:** https://aio.lv/en/product--pollin-azf-4--12575978
**Data updated:** 2026-07-11 23:05 (EEST)
**Category:** Other goods
**Manufacturer:** Pollin
**Manufacturer code:** AZF-4
**EAN:** 5907222297131
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 87.99 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 72.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pollin-azf-4--12575978

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

The Pollin AZF-4 is an automatic phase switch designed for reliable power supply management in three-phase electrical systems. Rated at 16A and 250V, this device ensures continuous operation by automatically switching to a healthy phase if the primary one fails. It is designed for standard TH35 DIN rail mounting, making it an ideal solution for industrial and residential electrical distribution panels requiring phase monitoring and protection.

## Long description

The Pollin AZF-4 is an automatic phase switch engineered for the reliable management of power supplies within three-phase electrical systems. Rated for 16A and 250V, this device is designed to maintain continuous operation by monitoring phase integrity and automatically switching to a healthy phase should the primary one experience a failure or voltage drop. Its compact design is specifically tailored for standard TH35 DIN rail mounting, allowing for seamless integration into both industrial and residential electrical distribution panels.
Advantages
The primary benefit of the Pollin AZF-4 is its ability to ensure uninterrupted power supply for critical equipment by providing an automated failover mechanism. By constantly monitoring the input phases, the device minimizes downtime and protects sensitive electronics from issues related to phase loss. The robust construction and standard mounting format ensure that it can be easily installed by professionals in existing electrical cabinets without requiring significant modifications to the infrastructure.
Suitable for
Industrial automation systems requiring phase redundancy
Residential electrical panels with three-phase power supply
Critical equipment that must remain powered during phase failure
Electrical distribution boards where phase monitoring is essential
When it may not be suitable
This device is not intended for use in single-phase electrical systems, as it requires a three-phase input to perform its switching function. It is also not suitable for high-current applications exceeding the 16A rating, as attempting to draw more power may lead to device failure or safety hazards.
Key specifications
Rated current: 16A
Rated voltage: 250V
Mounting type: TH35 DIN rail
System compatibility: Three-phase electrical networks
How to use
The Pollin AZF-4 should be installed by a qualified electrician in accordance with local electrical codes. The device is snapped onto a standard TH35 DIN rail within the distribution board. Input phases are connected to the designated terminals, and the output load is connected to the switch output. Once installed, the device operates automatically, requiring no manual intervention to switch between phases during normal operation.
What to consider before purchase
Verify that your electrical system is a three-phase configuration
Ensure the total load current does not exceed 16A
Check available space on the DIN rail within your distribution panel
Confirm that the voltage requirements match your local power grid
Usage recommendations
Regularly inspect the electrical connections to ensure they remain tight and free from oxidation. It is recommended to test the phase switching functionality periodically during scheduled maintenance to confirm the device is responding correctly to simulated phase loss.

## FAQ

### How much does the Pollin AZF-4 Automatic Phase Switch 16A 250V cost, and is it available for purchase?

The price is 87.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 30.07.2026 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 Pollin AZF-4 Automatic Phase Switch 16A 250V be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Pollin 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 Pollin 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12575978/68942353_large.webp