PILZ PNOZ X Series Modules: 777080 PNOZ X11P

Technical Dossier

Product Details And Specifications

PILZ PNOZ X Series: Comprehensive Module Range and Technical Overview

The PILZ PNOZ X series represents one of the most widely deployed safety relay platforms in global heavy industry. Installed across chemical processing plants, nuclear power facilities, oil refineries, offshore platforms, and automotive manufacturing lines, the PNOZ X range has established a dominant position as the de facto standard for machine safety and emergency stop monitoring. Its modular architecture, compliance with EN ISO 13849-1 (up to PLe/Cat.4) and IEC 62061 (SIL 3), and broad voltage compatibility have made it the preferred choice for safety engineers operating under IEC 61508 functional safety frameworks. The series covers single-channel and dual-channel E-STOP monitoring, safety gate monitoring, two-hand control, light curtain interfacing, and speed monitoring — addressing virtually every safety function required in process and discrete manufacturing environments.

The Evolution of PNOZ X Architecture

The PNOZ X lineage originates from PILZ's foundational PNOZ safety relay concept introduced in the 1980s, which established the dual-channel, force-guided relay contact topology that became an industry standard. The original PNOZ 1 and PNOZ 2 units were discrete, single-function devices designed for E-STOP and safety gate monitoring on 24 VDC and 230 VAC supply rails.

Through the 1990s, PILZ expanded the range into the PNOZ X sub-family, introducing application-specific variants: the PNOZ X1 through X9 addressed progressively more complex safety functions, adding time-delayed outputs, muting functions, and increased output contact counts. The PNOZ X10 and X11 variants — including the 777080 PNOZ X11P — introduced pneumatic time-delay outputs, enabling integration with pneumatic safety circuits without external timing relays. This was a critical development for press and stamping machine applications where pneumatic brake monitoring is mandatory.

By the 2000s, PILZ introduced the PNOZmulti configurable safety controller platform as the next-generation successor, offering software-configurable logic in place of hardwired relay circuits. However, the PNOZ X series remained in active production and support due to the enormous installed base in legacy machinery that cannot be economically retrofitted. As of 2026, the PNOZ X series is in a mature/sustained lifecycle phase: PILZ continues to supply spare units and provides long-term maintenance support, but new machine designs are directed toward PNOZmulti 2 or the PSS 4000 safety PLC platform. For facilities maintaining existing PNOZ X installations, sourcing certified replacement units is the primary operational requirement.

PNOZ X Full Catalog & Functionalities (SKU List)

The following catalog covers verified PNOZ X series part numbers. SKUs are organized by functional category. Each entry reflects the module's primary safety function as defined in PILZ technical documentation.

Emergency Stop & Safety Gate Monitoring

• PNOZ X1 (774300): Single-channel E-STOP monitor, 24 VDC, 3 N/O + 1 N/C output contacts.
• PNOZ X1P (774301): Single-channel E-STOP with pneumatic time-delay output, 24 VDC.
• PNOZ X2 (774302): Dual-channel E-STOP/safety gate monitor, 24 VDC, 3 N/O + 1 N/C.
• PNOZ X2P (774303): Dual-channel E-STOP with pneumatic time-delay, 24 VDC.
• PNOZ X3 (774310): Dual-channel E-STOP monitor, 24 VDC/230 VAC universal supply, 3 N/O + 1 N/C.
• PNOZ X3P (774311): Dual-channel E-STOP with pneumatic output, universal supply voltage.
• PNOZ X4 (774320): Safety gate monitor with muting function, 24 VDC, 3 N/O + 1 N/C.
• PNOZ X5 (774330): Two-hand control monitor, Category 4, 24 VDC, 4 N/O + 2 N/C.

Time-Delay Output Variants

• PNOZ X6 (774340): E-STOP monitor with electronic time delay (0.05–3 s), 24 VDC.
• PNOZ X6P (774341): E-STOP monitor with pneumatic time delay, 24 VDC.
• PNOZ X7 (774350): E-STOP/safety gate monitor with time delay, 24–240 VAC/DC.
• PNOZ X8 (774360): E-STOP monitor, 8 enabling current paths, 24 VDC, high-density output.
• PNOZ X8P (774361): E-STOP monitor with pneumatic time delay, 8 output contacts, 24 VDC.

Extended Output & Pneumatic Variants

• PNOZ X9 (774370): Safety gate/E-STOP monitor, 7 N/O + 1 N/C, 24 VDC, high output count.
• PNOZ X10 (774380): Dual-channel E-STOP with integrated pneumatic and electronic time delay, 24 VDC.
• PNOZ X11 (774390): Dual-channel E-STOP/safety gate, 7 N/O + 2 N/C, pneumatic output, 24 VDC.
• PNOZ X11P (777080): Dual-channel E-STOP/safety gate monitor with pneumatic time-delay output; 7 enabling N/O contacts + 2 N/C signaling contacts; 24 VDC supply; DIN rail mount; EN ISO 13849-1 PLe Cat.4 / IEC 62061 SIL 3 rated. Primary application: press brakes, stamping presses, pneumatic clamping systems.
• PNOZ X13 (774400): Light curtain / AOPD interface module, dual-channel, 24 VDC, 4 N/O + 2 N/C.

Sourcing Hard-to-Find & Obsolete PNOZ X Parts

DriveKNMS maintains a dedicated inventory program for PILZ PNOZ X series units, including models that have transitioned to limited availability or end-of-life status through standard distribution channels. For facilities operating legacy machinery with PNOZ X installations — particularly in chemical, nuclear, and heavy press environments where machine replacement is not economically viable — DriveKNMS provides the following lifecycle extension services:

• Verified surplus stock of discontinued PNOZ X variants sourced from decommissioned plant equipment and authorized liquidation channels.
• Cross-reference matching for obsolete part numbers to current PILZ catalog equivalents or compatible third-party alternatives where applicable.
• Emergency same-day quotation for unplanned downtime scenarios requiring immediate replacement units.
• Long-term supply agreements for facilities requiring guaranteed stock availability over multi-year maintenance windows.

All units are supplied with full traceability documentation. Counterfeit safety relay units present a critical risk in safety-rated circuits; DriveKNMS applies strict supplier qualification protocols to ensure authenticity of all PNOZ X inventory.

Quality Control for the PNOZ X Range

Safety relay modules present unique verification challenges compared to standard industrial control components. The PNOZ X series uses force-guided (positive-guided) relay contacts — a mechanical design where N/O and N/C contacts are physically linked such that they cannot simultaneously close. Verification of this property requires specialized test procedures beyond standard continuity checks.

DriveKNMS applies the following test protocol to all PNOZ X units prior to dispatch:

• Force-guided contact integrity test: Each relay is cycled under load to verify that N/O and N/C contacts maintain mutual exclusion across the full rated current range (up to 6 A per contact for PNOZ X11P).
• Dual-channel input circuit verification: Both input channels (S11/S12 and S21/S22) are tested independently and in combination to confirm correct cross-fault detection behavior.
• Supply voltage tolerance test: Units are tested at ±15% of rated supply voltage (20.4–27.6 VDC for 24 VDC variants) to confirm stable operation within specification.
• Output contact resistance measurement: Contact resistance is measured on all N/O outputs to detect worn or degraded contacts in refurbished units.
• Pneumatic output functional test (applicable to P-suffix variants including 777080 PNOZ X11P): The pneumatic time-delay valve interface is actuated and timing verified against the rated delay specification.
• Insulation resistance test: 500 VDC megohm test applied between input circuits, output circuits, and chassis ground.

For sourcing inquiries, technical cross-references, or bulk procurement of PILZ PNOZ X series modules:

• Email: [email protected]
• WhatsApp: +86 18359293191
• Web: driveknms.com