# Phoenix Contact PSR-SCP-24UC/THC4/2X1/1X2 Safety Relay 24V AC/DC

**URL:** https://aio.lv/en/product--phoenix-contact-2963721--3688306
**Data updated:** 2026-05-18 02:38 (EEST)
**Category:** Control Systems
**Manufacturer:** PHOENIX-CONTACT
**Manufacturer code:** 2963721
**EAN:** 4017918818692
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 264.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 219.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--phoenix-contact-2963721--3688306

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Phoenix Contact 2963721 is a safety relay designed for two-hand control applications. Operating at 24V AC/DC, this module ensures reliable machine safety and operator protection in industrial automation systems. It features a robust design suitable for demanding environments, providing precise switching and monitoring functions. This safety component is essential for integrating emergency stop and safety interlock circuits into your control infrastructure.

## Long description

The Phoenix Contact PSR-SCP-24UC/THC4/2X1/1X2 is a high-performance safety relay specifically engineered for two-hand control applications. Operating on a 24V AC/DC supply, this module is designed to ensure maximum operator safety in industrial automation environments. It provides reliable monitoring and switching functions, making it an essential component for safety-critical systems where precise control is required to prevent accidental machine activation.
Advantages
This safety relay offers exceptional reliability by supporting two-hand control devices in accordance with EN 574 type IIIC standards. It is capable of achieving high safety integrity levels up to SIL 3 and meets the requirements for Category 4 and Performance Level e as defined by EN ISO 13849. The device features advanced synchronous activation monitoring, which ensures that both control inputs are operated within a specific timeframe, thereby preventing bypass or tampering with the safety mechanism.
Suitable for
Two-hand control systems for machinery
Industrial automation safety circuits
Emergency stop and safety interlock integration
Applications requiring SIL 3 or Cat. 4, PL e compliance
When it may not be suitable
This relay is specifically optimized for two-hand control configurations and may not be suitable for general-purpose switching applications or systems that do not require synchronous input monitoring. It is not intended for use in environments exceeding its specified voltage or environmental ratings.
Key specifications
Operating voltage: 24V AC/DC
Safety standard compliance: EN 574 type IIIC
Safety integrity: Up to SIL 3, Cat. 4, PL e
Functionality: Synchronous activation monitoring
How to use
The relay should be installed within a control cabinet on a standard DIN rail. Connect the two-hand control buttons to the designated input terminals, ensuring that the wiring complies with the relevant safety standards for two-hand control devices. The power supply must be connected to the specified 24V AC/DC terminals. Once installed, the device monitors the simultaneous activation of the inputs; if the inputs are not triggered within the required synchronous window, the relay will prevent the machine from starting or will initiate a safe stop.
What to consider before purchase
Verify that your control system requires two-hand safety logic
Ensure your power supply matches the 24V AC/DC requirement
Confirm that the safety level (SIL 3/PL e) meets your machine risk assessment
Usage recommendations: Always perform a functional safety test after installation to ensure the synchronous monitoring operates correctly according to your specific machine safety requirements.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 22.5 x 114.5 x 99 |
| Weight | 0.1933 kg |
| Operating temperature (T-T) | -20 - 55 |
| Coil voltage | 250 V |

## FAQ

### How much does the Phoenix Contact 2963721 Safety Relay \| PSR-SCP-24UC/THC4/2X1/1X2 cost, and is it available for purchase?

The price is 264.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 15.07.2026 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 Phoenix Contact 2963721 Safety Relay \| PSR-SCP-24UC/THC4/2X1/1X2 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 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

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