- Alternative Part Number: PSEN 2.1P-21/PSEN 2.1-20/8MM/LED/1
- Supply voltage (V): 24 V
- Type of supply voltage U1: DC
- Switching voltage: 24 V
- Ambient temperature: -25 – 70 ¬∞C
- Max. ambient temp. at 2000 m: +70 °C
Free Shipping: $50+ U.S. orders | $350+ International orders
12-Month Warranty
Hassle-Free Returns Within 30 days
Over 100,000 parts in stock
- Brand: Pilz
Pilz 774734 Safety relays / protection relays
Mfr # 774734
$393.57
/ea
Availability: Available to Order|Typically ships within 7 to 10 business days. Lead time may vary based on supplier availability.
- Free shipping on U.S. orders over $50 and international orders over $350.
- Hassle-Free 30-Day Returns.
- 12-Month Warranty for all products.
- Get 10% off—join our email list.
Accepted Payments
- 110 V AC Operation: Runs on a 110 V AC supply with low 5 VA power consumption, ensuring efficient and reliable integration into control systems.
- Versatile Contact Outputs: Provides 3 normally open (N/O) safety contacts for direct switching of actuators and 1 normally closed (N/C) contact for signalling and monitoring.
- Dual-Channel Input Monitoring: Equipped with 2 inputs for redundant monitoring of emergency stops, safety gates, or enabling devices.
- Standards-Compliant Switching: Designed to meet EN 60947-4-1 utilisation categories (AC/DC1), ensuring robust and safe operation under industrial conditions.
The Pilz PNOZ X4 110VAC 3N/O 1N/C (Part No. 774734) is a reliable safety relay designed to monitor essential safety functions such as emergency stop buttons, safety gates, and enabling switches. As part of the trusted PNOZ X family, this relay combines robust performance, efficient power consumption, and flexible contact configurations, making it an indispensable solution for safeguarding machinery and operators in industrial automation environments.
Operating on a 110 V AC supply voltage, the PNOZ X4 is optimised for integration into control systems that use standard AC power. Its low 5 VA power consumption ensures efficient operation and reduces strain on the power supply, contributing to improved overall system reliability. This energy-efficient performance makes the relay well-suited for continuous duty in systems where safety monitoring is a critical requirement.
The relay is equipped with two inputs, allowing for dual-channel monitoring. This redundancy ensures higher fault tolerance by detecting wiring errors, cross faults, or discrepancies between input signals. Dual-channel capability enhances safety integrity, ensuring that hazardous machine functions are immediately disabled in the event of unsafe conditions.
The output configuration includes three normally open (N/O) safety contacts, which provide reliable disconnection of actuators, motors, or contactors to bring machines into a safe state. Additionally, there is one normally closed (N/C) auxiliary contact, which can be used for monitoring or feedback functions, such as providing status signals to higher-level controllers or diagnostic systems. This flexible contact arrangement allows the PNOZ X4 to serve both direct switching and signalling purposes.
Certified to EN 60947-4-1 utilisation categories (AC/DC1), the relay guarantees reliable and compliant performance in industrial switching applications. Its rugged build ensures durability in environments subject to frequent operation, vibrations, or temperature fluctuations, providing long service life with minimal maintenance.
Installation is made simple by the relay’s compact design and clearly marked terminals, which reduce wiring errors and commissioning times. This ease of integration makes it a cost-effective option for both new machine builds and retrofit projects.
The PNOZ X4 110VAC 3N/O 1N/C is ideal for use across a wide range of industries, including manufacturing, packaging, robotics, material handling, and process automation. By providing reliable monitoring and rapid disconnection of hazardous energy sources, it helps organisations maintain compliance with international safety standards while ensuring operator protection and equipment safety.
In summary, the Pilz PNOZ X4 110VAC 3N/O 1N/C (774734) combines energy-efficient AC operation, dual-channel input monitoring, versatile contact outputs, and compliance with international standards. It is a dependable and flexible safety relay solution designed to protect operators and machinery, ensuring safe and efficient operation in diverse industrial environments.
Product Specifications
| Manufacturer | Pilz |
|---|
We’re Always Ready to Assist You
Submit A Request
Reach us through our form.
Give Us A Call
Connect with a representative.
Live Chat
Chat live with our support team.

Reviews
There are no reviews yet.