PILZ PNOZ S4 C Safety Relay 24V DC 3 N/O 1 N/C Contacts DIN Rail Mount
The PNOZ s4 C is a safety relay that features a redundant circuit with built-in self-monitoring. It can be configured for 1- or 2-channel wiring, with or without cross-circuit detection between contacts, and supports either manual or automatic start. The correct opening and closing of the safety function relays is tested automatically in each ON-OFF cycle.
It features 3 normally open (N/O) safety contacts, 1 normally closed (N/C) auxiliary contact, and 1 semiconductor output. A key feature is the ability to connect a PNOZsigma contact expander module using a connector, allowing for output expansion when needed.
| Specification | Detail |
|---|---|
| Order Number | 751104 |
| Series | PNOZsigma (PNOZ s4) |
| Supply Voltage (UB) | 24 V DC |
| Power Consumption | 2.5 W |
| Voltage Type | DC |
| Voltage of supply DC | 24V |
| Inputs | 1/2-channel with/without cross-circuit detection |
| Safety Outputs (Relay) | 3 N/O (normally open), positively guided |
| Auxiliary Output (Relay) | 1 N/C (normally closed) |
| Signal Output (Semiconductor) | 1 (24 V DC) |
| Contact Current Rating | 6 A (AC1/DC1), 5 A (AC15) |
| Contact Voltage Rating | 240 V AC / 24 V DC |
| Contact Material | AgCuNi + 0.2 µm Au |
| Terminal Type | Plug-in spring-loaded terminals (included) |
| Mounting | DIN rail |
| Protection Rating | IP40 (housing) / IP20 (terminals) |
| Ambient Temperature | -10°C to +55°C |
| Dimensions (H x W x D) | 100 mm x 22.5 mm x 120 mm |
| Net Weight | 185 g |
- Forced-guided relay outputs: Ensures high reliability and safety for the 3 N/O safety contacts.
- Performance Level: Capable of meeting up to Category 4, PL e according to EN ISO 13849-1.
- Wide Approvals: Includes TÜV, CE, UKCA, cULus Listed, CCC, and KOSHA certifications for global use.
- Configurable Operation: Operating modes (manual/automatic start) can be set via a rotary switch on the unit.
- Visual Indicators: Features LED indicator lights for quick status diagnostics.
- Electronic Fuse: The unit is equipped with an electronic fuse for internal protection.
Included Terminals: This model (751104) comes with plug-in spring-loaded terminals. Ensure compatibility with your wiring preferences before ordering.
Accessories: Optional accessories include a terminator plug (e.g., 750010) and a set of replacement spring-loaded terminals (e.g., 751004).
Application Note: The N/C auxiliary contact is for status indication only and is not a safety-rated output. It should not be used in the safety circuit.
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