# Phoenix Contact PSR-SCP-24UC/ESA4/3X1/1X2/B Safety Relay, 24V AC/DC, 3 NO/1 NC Contacts

**URL:** https://aio.lv/en/product--phoenix-contact-2963763--3688312
**Data updated:** 2026-05-18 02:38 (EEST)
**Category:** Control Systems
**Manufacturer:** PHOENIX-CONTACT
**Manufacturer code:** 2963763
**EAN:** 4017918878085
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 220.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 182.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--phoenix-contact-2963763--3688312

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

The Phoenix Contact 2963763 is a high-performance safety relay designed for emergency stop and safety door monitoring applications. Supporting a 24V AC/DC coil voltage, this module ensures reliable circuit interruption to meet SIL 3/4 safety standards. It features 3 normally open and 1 normally closed contact configuration, providing robust protection for industrial automation systems and machinery safety control circuits.

## Long description

The Phoenix Contact PSR-SCP-24UC/ESA4/3X1/1X2/B safety relay is a high-performance industrial component engineered for critical safety functions, including emergency stop monitoring and safety door protection. This module is designed to maintain operational integrity in demanding automation environments, ensuring reliable circuit interruption and compliance with stringent safety standards such as SIL 3 and Cat. 4, PL e according to EN ISO 13849.
Advantages
This safety relay offers exceptional reliability through its robust design and support for both single and two-channel operation. By providing three enabling current paths, it allows for flexible integration into complex safety control circuits. The inclusion of plug-in screw terminal blocks simplifies installation and maintenance, reducing downtime during system upgrades or component replacements. Its compatibility with 24V AC/DC power supplies makes it a versatile choice for a wide range of industrial machinery and control panels.
Suitable for
Emergency stop button monitoring
Safety door and gate interlocking systems
Industrial automation safety control circuits
Machinery protection requiring SIL 3 or Cat. 4 compliance
When it may not be suitable
This device is not intended for applications requiring high-voltage switching beyond its specified ratings or for environments where hazardous substances exceed the protection class of the housing. It is also not suitable for non-safety-related general switching tasks where a standard industrial relay would be more cost-effective.
Key specifications
Nominal input voltage: 24V AC/DC
Contact configuration: 3 normally open (NO) enabling paths, 1 normally closed (NC) contact
Safety integrity: SIL 3, Cat. 4, PL e (EN ISO 13849)
Connection type: Plug-in screw terminal blocks
Operation modes: Single or two-channel
How to use
The relay should be mounted on a standard DIN rail within a protected control cabinet. Connect the safety sensors, such as emergency stop buttons or door switches, to the input channels according to the required single or two-channel configuration. Ensure that the power supply is connected to the designated input terminals. Once wired, verify the safety function by triggering the connected sensors to ensure the relay interrupts the circuit as expected. Always ensure that the terminal screws are tightened to the specified torque to maintain a secure electrical connection.
What to consider before purchase
Verify that the 24V AC/DC voltage matches your control system power supply.
Ensure the contact configuration (3 NO / 1 NC) meets your specific safety logic requirements.
Check that the safety category (SIL 3 / Cat. 4) aligns with your machine risk assessment.
Confirm that the physical dimensions fit within your existing control panel layout.
Usage recommendations: Always perform a full functional safety test after installation and before putting the machinery into operation. Regular inspections of the terminal connections and the relay housing are recommended to ensure long-term reliability in industrial environments.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 22.5 x 114.5 x 99 |
| Weight | 0.2007 kg |
| Operating temperature (T-T) | -20 - 55 |
| Coil voltage | 250 V |
| Contact current capacity | 72 A |

## FAQ

### How much does the Phoenix Contact 2963763 Safety Relay \| PSR-SCP-24UC/ESA4/3X1/1X2/B cost, and is it available for purchase?

The price is 220.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 10.07.2026 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 2963763 Safety Relay \| PSR-SCP-24UC/ESA4/3X1/1X2/B 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

https://aio.lv/img/cache/product/3688312/58525459_large.webp