Overview
The Pilz PNOZ-X2-24VACDC-2S is a standalone safety relay designed for critical safety circuit applications in industrial machinery and control systems. This model (part numbers 6.3AF/4AT, 774303, 105021) provides safety-oriented interruption of safety circuits with redundant channels and built-in self-monitoring to ensure reliable operation in emergency stop and safety gate monitoring applications.
Key Features
- 24VAC/DC Supply Voltage: Operates on standard 24V AC or DC supply for flexible installation in various industrial environments
- 2 Safety Contacts (N/O): Two instantaneous normally-open safety relay outputs with positive-guided contact design for fail-safe operation
- Redundant Design with Self-Monitoring: Circuit is fully redundant with automatic testing of correct opening and closing during each on-off cycle
- Shorts Detection: Built-in capability to detect shorts across input contacts, enhancing system safety and diagnostics
- LED Status Indicators: Power and safety contact status LEDs for quick system diagnostics
- Screw Terminal Connections: Integrated screw terminals for reliable field wiring
Technical Specifications
- Supply Voltage: 24 VAC/DC, 50/60 Hz
- Output Contacts: 2 Normally Open (N/O) safety contacts
- Contact Current (Max): Rated for industrial relay loads
- Power Consumption (AC): Typical VAC rating
- Power Consumption (DC): Typical DC watts
- Input Configuration: 1/2-channel wiring with shorts detection option
- Contact Material: Silver-tin oxide, gold-plated for reliability
- Mounting: DIN rail or panel mount via 22.5 mm width housing
- Operating Temperature Range: −35°C to +55°C
- Protection Rating: IP20 standard (IP40/IP54 available with covers)
- Approvals: Meets EN ISO 13849-1, EN 62061 safety standards
- Manufacturer: Pilz GmbH & Co. KG, Germany
Typical Applications
- Emergency stop (E-STOP) pushbutton monitoring and circuit control
- Safety gate interlocks and limit switch monitoring
- Light barrier and light curtain circuit monitoring
- Safety function verification in machinery control systems
- Dual-channel safety circuit architecture in hazardous area controls
Compatibility & Replacements
Compatible With
- DIN rail mounting systems (22.5 mm width)
- Standard 24 VDC/VAC industrial power supplies
- E-STOP pushbuttons, safety gate switches, and limit switches
- Industrial safety circuit architectures compliant with EN ISO 13849-1
- Control systems requiring redundant safety monitoring channels
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Alternative Pilz PNOZ X series models with different output configurations (PNOZ X2P, PNOZ X2.8P) are available if different contact counts or terminal types are required.
Works With
- EN ISO 13849-1 PLd/PLe safety control circuits
- EN 62061 SIL 2 safety integrity level applications
- Pilz safety relay modules and expansion cards
- Standard industrial 24V DC safety circuit wiring
- Safety-rated pushbutton stations and selector switches
