Pilz PNOZ s3 24VDC 2n/o Safety Relay

In industrial automation, ensuring the safety of personnel and machinery is paramount. The Pilz PNOZ s3 24VDC 2n/o safety relay provides reliable emergency stop and safety gate monitoring in a compact 22.5 mm housing. With two normally open safety contacts and a supply voltage of 24 V DC, it is engineered to meet the highest safety standards, including PL e (EN ISO 13849-1) and SIL CL 3 (IEC 61508), making it a trusted choice for safeguarding critical processes.

Who is it for

This safety relay is ideal for machine builders, system integrators, and maintenance engineers who need a dependable safety component for emergency stop circuits, safety gates, or light curtains. It suits applications in packaging, material handling, robotics, and other automated environments where safety integrity is non-negotiable.

Main features

• Two normally open (N/O) safety contacts for reliable switching
• Compact 22.5 mm width saves space on DIN rail
• Meets PL e (EN ISO 13849-1) and SIL CL 3 (IEC 61508)
• Screw terminals for secure and easy wiring
• Wide operating temperature range from -10 °C to +55 °C
• LED indicators for status and diagnostics
• Stop category 0 for immediate removal of power

Specifications

• Supply voltage: 24 V DC
• Number of safety contacts: 2 N/O
• Number of auxiliary contacts: 0 N/C
• Housing width: 22.5 mm
• Mounting: DIN rail
• Protection type: IP40 (housing), IP20 (terminals)
• Power consumption: 2.0 W
• Response time: 15 ms typical
• Release time: 15 ms typical
• Max. current: 6 A (AC1/DC1)
• Approvals: CE, cULus, TÜV, KOSHA, CCC

Tips

Always verify the safety function after installation and perform regular functional tests as part of your maintenance routine. Use appropriate wire sizes and torque settings for screw terminals to ensure reliable connections. For applications requiring higher contact ratings or additional auxiliary contacts, consider other models in the PNOZ s3 series.