Emergency Stop & Safety Gate Solution – PILZ PNOZ 11 774086 | PNOZ Classic Series
Where This Product Is Used
The PILZ PNOZ 11 (Part No. 774086) is a dedicated safety relay engineered for machine safety applications where personnel protection is paramount. It is widely deployed across:
- Emergency Stop Circuits – Monitors E-stop pushbuttons on industrial machinery, robotic cells, and automated production lines to ensure safe state upon actuation.
- Safety Gate & Guard Door Monitoring – Interfaces with interlocked access doors on CNC machining centers, injection molding machines, and press brakes, preventing restart while guards are open.
- Light Curtain & Safety Mat Integration – Acts as the safety logic interface for AOPD (Active Opto-electronic Protective Devices) and pressure-sensitive mats in collaborative robot workcells.
- Two-Hand Control Systems – Validates simultaneous operator input on stamping presses and forming machines per ISO 13851.
- Conveyor & Material Handling Systems – Provides safe stop functionality for belt conveyors, palletizers, and automated guided vehicles (AGVs).
- Packaging & Food Processing Equipment – Meets hygiene-compatible installation requirements in washdown environments when paired with appropriate enclosures.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 774086 |
| Model | PNOZ 11 |
| Series | PNOZ Classic |
| Manufacturer | PILZ GmbH & Co. KG |
| Supply Voltage | 24 VDC |
| Safety Category | Category 4 / PLe (EN ISO 13849-1) |
| Safety Integrity Level | SIL 3 (IEC 62061) |
| Output Contacts | 3 N/O (safety) + 1 N/C (auxiliary) |
| Input Channels | Dual-channel (2-channel) |
| Manual / Auto Reset | Selectable |
| Response Time | ≤ 20 ms |
| Operating Temperature | 0 °C to +55 °C |
| Mounting | DIN rail (35 mm) |
| Housing Width | 22.5 mm |
| Weight | approx. 640 g (with packaging) |
| Protection Class | IP40 (front panel) |
| Connection Type | Screw terminals |
Why Engineers Specify This Model
- Proven PNOZ Classic Reliability – The PNOZ series has over 30 years of field-proven deployment in safety-critical environments globally, with millions of units installed.
- Highest Safety Rating – Achieves Category 4 / PLe / SIL 3, the highest achievable level for safety relay modules, satisfying the most stringent machinery directive requirements.
- Dual-Channel Fault Detection – Cross-circuit monitoring detects wiring faults and contact welding, preventing dangerous single-fault failures.
- Selectable Reset Mode – Manual reset prevents automatic restart after E-stop actuation; auto reset supports applications requiring continuous monitoring.
- Compact 22.5 mm Width – Optimizes control cabinet space in dense panel layouts without sacrificing functionality.
- Wide Acceptance by OEMs – Specified by machine builders across automotive, semiconductor, food & beverage, and logistics sectors as a drop-in safety solution.
- Direct PILZ Ecosystem Compatibility – Integrates seamlessly with PILZ safety sensors, light curtains (PSENopt), and safety controllers (PNOZmulti 2).
Complete System Bill of Materials
For a complete emergency stop safety circuit using the PNOZ 11, engineers typically specify:
- PILZ PNOZ 11 774086 – Safety relay module (this item)
- PILZ 400100 – E-stop pushbutton, 40 mm, mushroom head, key release
- PILZ 570400 – PSENcode safety switch for guard door monitoring
- 24 VDC SITOP / Phoenix Contact power supply (3 A minimum)
- 35 mm DIN rail + end brackets
- Ferrule-terminated 1.5 mm² control wiring (per IEC 60204-1)
- Contactor with mirror contacts for output load switching
Compliance & Industry Standards
- EN ISO 13849-1:2015 – Category 4, Performance Level e (PLe)
- IEC 62061 – SIL 3
- IEC 60947-5-1 – Low-voltage switchgear and controlgear
- EU Machinery Directive 2006/42/EC
- CE Marked
- UL Listed (UL 508)
- cULus Recognized
- BG / TÜV Type Approved
Quality Assurance & Sourcing
Konmask.com sources PILZ components exclusively through authorized industrial distribution channels. Every unit is:
- Supplied with original PILZ manufacturer packaging and documentation
- Traceable to batch/lot records for full supply chain transparency
- Inspected for physical integrity and label authenticity prior to dispatch
- Backed by PILZ’s standard product warranty
We do not supply grey-market, refurbished, or counterfeit components. All safety-critical parts are handled with zero-compromise sourcing standards.
How to Source This Part
- In Stock: Add to cart and proceed to checkout for same-day or next-business-day dispatch.
- Bulk / Project Orders: Contact us for volume pricing and lead-time commitments on quantities ≥ 5 units.
- Urgent Requirements: Email [email protected] or call +0086 19859288691 for expedited sourcing.
- Cross-Reference / Replacement: If you are replacing an existing safety relay, share your current part number and we will confirm compatibility.
Application-Specific FAQ
Q: Can the PNOZ 11 monitor a single-channel E-stop?
A: Yes, it can be wired for single-channel monitoring, but this reduces the achievable safety category. Dual-channel wiring is required for Category 4 / PLe.
Q: What is the maximum switching current for the safety outputs?
A: The N/O safety contacts are rated for 6 A at 250 VAC / 24 VDC resistive load.
Q: Is the PNOZ 11 compatible with PILZ PNOZmulti 2?
A: The PNOZ 11 is a standalone relay; for configurable safety logic, consider the PNOZmulti 2 platform. Both can coexist in the same panel.
Q: Does this relay support cross-circuit monitoring?
A: Yes. The PNOZ 11 detects cross-circuits between the two input channels, preventing dangerous fault masking.
Q: What certifications are required for CE machinery compliance?
A: The PNOZ 11 satisfies EN ISO 13849-1 Category 4 PLe and IEC 62061 SIL 3, covering the safety function requirements under the EU Machinery Directive 2006/42/EC.
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