# Pollin MKF-12PK Phase Failure, Asymmetry and Sequence Monitoring Relay 2x1P 8A 250V TH35

**URL:** https://aio.lv/en/product--pollin-mkf-12pk--12469011
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Pollin
**Manufacturer code:** MKF-12PK
**EAN:** 5907222297056
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 86.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 71.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pollin-mkf-12pk--12469011

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Pollin MKF-12PK is a professional monitoring relay designed to protect electrical systems by detecting phase failure, asymmetry, and incorrect phase sequence. Featuring a 2x1P configuration with an 8A 250V rating, this device is suitable for DIN rail (TH35) mounting. It ensures reliable operation of three-phase equipment by preventing damage caused by unstable power supply conditions in industrial and residential installations.

## Long description

The Pollin MKF-12PK is a professional monitoring relay engineered to safeguard three-phase electrical systems from critical power supply irregularities. By continuously monitoring for phase failure, phase asymmetry, and incorrect phase sequence, this device acts as a vital protective layer for sensitive industrial and residential equipment. Designed for standard TH35 DIN rail mounting, it integrates seamlessly into modern electrical cabinets, providing a reliable solution for maintaining operational stability and preventing costly hardware damage.
Advantages
This monitoring relay offers robust protection by detecting deviations in power quality before they can cause motor burnout or control system malfunctions. Its dual-output configuration provides flexibility in circuit design, while the high-precision sensing technology ensures that the system reacts promptly to phase loss or voltage imbalances. The compact design and standardized mounting make it an efficient choice for both new installations and retrofitting existing electrical panels, ensuring long-term reliability and reduced maintenance requirements for three-phase machinery.
Suitable for
Three-phase motor protection
Industrial automation systems
HVAC control panels
Residential power distribution boards
Pump and compressor control circuits
This device may not be suitable for single-phase electrical systems or applications requiring specialized monitoring functions such as overvoltage or undervoltage protection beyond phase-specific parameters. It is also not intended for use in environments with extreme moisture or corrosive gases without appropriate protective enclosure housing.
Key specifications
Monitoring functions: Phase failure, phase asymmetry, phase sequence
Output configuration: 2x1P (two independent changeover contacts)
Contact rating: 8A at 250V AC
Mounting type: TH35 DIN rail
Application: Three-phase systems
Installation should be performed by a qualified professional in accordance with local electrical regulations. The relay is mounted directly onto a standard TH35 rail within a distribution board. Connect the three-phase supply lines to the designated input terminals and wire the output contacts into the control circuit of the equipment being protected. Ensure that all connections are tightened securely and that the wiring matches the provided technical diagram to prevent short circuits or improper operation.
What to consider before purchase
Verify that your electrical system is a three-phase configuration
Ensure the load current does not exceed the 8A contact rating
Check available space on the DIN rail within your enclosure
Confirm compatibility with your existing control voltage requirements
For optimal performance and safety, regularly inspect the terminal connections for tightness and ensure the device is kept free from dust and debris. If the relay triggers a shutdown, verify the incoming power supply quality before attempting a reset to ensure the underlying electrical fault has been resolved.

## FAQ

### How much does the Pollin MKF-12PK Phase Monitoring Relay cost, and is it available for purchase?

The price is 86.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 06.07.2026 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 MKF-12PK Phase Monitoring Relay 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/12469011/68771686_large.webp