# Pollin SZR-5 Automatic Transfer Switch Controller, 1-Phase, Adjustable Voltage Thresholds and Switching Time

**URL:** https://aio.lv/en/product--pollin-szr-5--12454053
**Data updated:** 2026-05-18 02:42 (EEST)
**Category:** Control Systems
**Manufacturer:** Pollin
**Manufacturer code:** SZR-5
**EAN:** 5907222297360
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 374.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 309.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pollin-szr-5--12454053

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Pollin SZR-5 is a 1-phase automatic transfer switch (ATS) controller designed for reliable power source management. It features adjustable lower and upper voltage thresholds and configurable switching time. The device supports operation modes with or without source priority, ensuring seamless transition between power lines. Ideal for industrial and residential electrical systems requiring automated power supply redundancy.

## Long description

The Pollin SZR-5 is a professional-grade 1-phase automatic transfer switch (ATS) controller engineered to provide reliable power source management for electrical systems. This device monitors power lines and automatically switches between sources based on user-defined parameters, ensuring continuous power supply for critical loads. With its robust design, it is suitable for both residential and industrial applications where power redundancy is essential.
Advantages
The primary benefit of the Pollin SZR-5 is its high level of configurability, allowing users to set precise lower and upper voltage thresholds to match specific power requirements. The adjustable switching time ensures that transitions between power sources occur smoothly, preventing unnecessary flickers or equipment restarts. Furthermore, the controller offers versatile operation modes, including options with or without source priority, providing flexibility for various network configurations and backup power setups.
Suitable for
Residential backup power systems using generators or dual utility lines
Industrial automation equipment requiring uninterrupted power
Critical lighting and security systems
Small-scale server rooms or communication hubs
This controller may not be suitable for 3-phase electrical systems, as it is specifically designed for 1-phase applications. Additionally, it should not be used in environments where the electrical load exceeds the switching capacity of the internal relays or where high-frequency switching is required beyond the device's mechanical specifications.
Key specifications
System type: 1-phase
Adjustable voltage thresholds: Lower and upper limits
Configurable switching time: Yes
Operation modes: With or without source priority
Application: Power source redundancy management
To use the Pollin SZR-5, install the unit within a suitable electrical enclosure and connect the primary and secondary power lines to the designated input terminals. Configure the voltage thresholds and switching time using the onboard controls to match your specific power quality requirements. Once configured, the device will continuously monitor the input lines and automatically trigger the switch when the primary source falls outside the set parameters.
What to consider before purchase
Verify that your electrical system is 1-phase
Ensure the load requirements are compatible with the controller's relay ratings
Check if your setup requires source priority functionality
Confirm that the installation environment meets standard electrical safety requirements
Usage recommendations
For optimal performance and safety, ensure that the device is installed by a qualified electrician in accordance with local electrical codes. Regularly inspect the connections and test the switching functionality during routine maintenance to ensure the backup system remains operational.

## FAQ

### How much does the Pollin SZR-5 Automatic Transfer Switch Controller cost, and is it available for purchase?

The price is 374.99 € (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 13.07.2026 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 SZR-5 Automatic Transfer Switch Controller 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/12454053/68756551_large.webp