The Pilz 751104 (Model: PNOZ s4 C 24VDC 3 n/o 1 n/c) is a standalone, ultra-reliable safety relay engineered to provide advanced protection in automated industrial environments. As part of the globally recognized PNOZsigma series, this unit acts as the core safety brain for machinery, reliably interpreting signals from emergency stop pushbuttons, safety switches, interlocking gates, and optoelectronic light arrays.
| Specifications | |
| Product Make | PILZ |
| Part Number / SKU | 751104 |
| Type/Series | Â PNOZ s4 C (PNOZsigma) |
| Supply Voltage | 24 V DC |
| Permissible Voltage Tolerance | Â -15% / +10% |
| Power Consumption | Â 2.5 W |
| Max. Current Rating | 6.0 A per safety contact |
| Max. Switching Voltage | 240 V AC / 24 V DC |
| Performance Level (EN ISO 13849-1) | Up to PL e |
| Safety Category (EN 954-1) | Up to Cat 4 |
| Condition | NEW |
| Warranty | 1 YEAR |
| Country of Origin | Germany |
| Protection Degree | IP40 (Housing), IP20 (Terminals) |
| Length | 18 mm |
| Width | 22.5 mm |
| Height | 100 mm |
| Weight | 195 g |








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