# Relay Module PHOENIX-CONTACT UPK-2.1 — industrial relay interface module

**URL:** https://aio.lv/en/product--phoenix-contact-upk-21--11785038
**Data updated:** 2026-03-08 22:56 (EET)
**Category:** Server Parts & Components
**Manufacturer:** PHOENIX-CONTACT
**Manufacturer code:** UPK-2.1
**EAN:** 5904041751196
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--phoenix-contact-upk-21--11785038

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

PHOENIX-CONTACT UPK-2.1 is a relay module designed for industrial control and signal switching applications. As a dedicated relay interface module, it provides electrical isolation between control circuits and loads, enabling secure switching of signals and devices in automation cabinets, control panels, and machinery. Suitable for integration into PLC systems and relay racks.

## Long description

PHOENIX-CONTACT UPK-2.1 is a relay module engineered for industrial control and signal switching tasks. This dedicated relay interface module offers electrical isolation between control circuits and output loads, enabling reliable switching of devices and signals in automation cabinets, control panels, and machinery. The product is designed for straightforward integration into PLC systems, relay racks, and standard industrial wiring environments.
Advantages
The UPK-2.1 provides galvanic separation between input and output sides to protect sensitive control electronics from load-side transients. Its compact industrial form factor and standardized terminal connections allow for space-efficient mounting and straightforward wiring in control cabinets. The module supports consistent contact switching behavior suitable for repetitive automation tasks and helps simplify signal interfacing by translating control logic into isolated relay outputs.
Suitable for
Signal switching and isolation in PLC-based automation systems
Interfacing control circuits with electromechanical loads such as contactors and solenoids
Use in control panels, relay racks, and industrial switchgear
Applications requiring protection of control electronics from electrical noise and transients
Key specifications
Function: Relay interface module providing isolated switching between control inputs and output contacts
Application area: Industrial automation, control cabinet integration, relay racks
Contact type: Mechanical relay contacts suitable for switching of control and load circuits
Mounting: DIN-rail or panel-compatible form factor for organized cabinet installation
Connection method: Removable or fixed terminal connections designed for industrial wiring
Isolation: Galvanic separation between control side and load side to reduce interference and protect electronics
How to use
Install the relay module on a suitable DIN-rail or within the control panel in accordance with cabinet layout and safety clearances. Connect the control-side inputs to the PLC or control circuit and wire the output contacts to the target loads, following wiring diagrams and the module’s terminal labeling. Verify supply and control voltages are within the module’s allowable range before energizing. After wiring, perform functional tests by actuating control signals and observing correct contact switching and load operation.
Usage recommendations
For reliable operation, ensure correct terminal tightening and use recommended wire cross-sections for the expected current. Keep the module within specified ambient temperature limits and avoid exposure to excessive vibration or corrosive atmospheres. When integrating into complex automation systems, document wiring and maintain orderly cable routing to simplify troubleshooting and maintenance.

## FAQ

### How much does the Relay Module PHOENIX-CONTACT UPK-2.1 cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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. 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 PHOENIX-CONTACT 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 PHOENIX-CONTACT 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/11785038/67181150_large.webp