Product Description
Pilz 774303
The Pilz 774303, also known as the PNOZ X3, is a high-integrity safety relay designed for critical safety functions in industrial automation. It is widely used for monitoring emergency stop (E-STOP) pushbuttons and safety gates. This compact unit ensures the safe and reliable shutdown of machinery in hazardous situations, helping to protect personnel and prevent equipment damage. Operating on a versatile 24V AC/DC supply, it features three normally open safety contacts and one normally closed auxiliary contact, allowing for flexible integration into various control circuits. The PNOZ X3 meets the highest safety standards, including PL e and SIL CL 3, making it a trusted choice for implementing functional safety systems.
Technical Specifications:
- Model: PNOZ X3
- Order Number: 774303
- Supply Voltage (UB): 24 V AC/DC
- Safety Contacts: 3 N/O (Normally Open)
- Auxiliary Contacts: 1 N/C (Normally Closed)
- Terminal Type: Screw terminals
- Safety Integrity Level: PL e (EN ISO 13849-1), Cat. 4 (EN 954-1), SIL CL 3 (IEC 62061)
- Dimensions (W x H x D): 45 mm x 87 mm x 121 mm

Pilz 774303
Shop the Pilz 774303 PNOZ X3 safety relay. This 24V AC/DC unit provides reliable E-STOP and safety gate monitoring, compliant with PL e and SIL CL 3 standards for maximum machine safety.









