PILZ PNOZ X2 774303 Safety Control Stop Relay – PNOZ X Series
Imagine a robotic welding cell mid-cycle when an operator inadvertently crosses the safety perimeter. Without a certified safety relay monitoring the emergency-stop circuit, the machine has no reliable, standards-compliant mechanism to bring motion to a controlled halt — the result can be catastrophic injury, regulatory shutdown, and production loss measured in days, not hours. The PILZ PNOZ X2 774303 exists precisely to eliminate that risk: it provides the hardwired, dual-channel E-stop monitoring that transforms a simple pushbutton into a legally defensible, IEC 62061 / ISO 13849-1 safety function.
Within the PNOZ X family — Pilz’s foundational range of standalone safety relays trusted in over 700,000 installations worldwide — the PNOZ X2 (order number 774303) occupies the core dual-channel E-stop / safety gate monitoring position. It delivers PLd / Cat. 3 performance in a compact 22.5 mm DIN-rail housing, making it the go-to choice for machine builders who need certified safety without the complexity of a programmable safety controller. Its global approvals (CE, UL, CSA, BG) ensure seamless acceptance across North American, European, and Asian markets.
Technical Specifications
- Manufacturer: PILZ GmbH & Co. KG
- Part Number / Order No.: 774303
- Model: PNOZ X2
- Series: PNOZ X (standalone safety relays)
- Function: Dual-channel E-stop / safety gate monitoring with manual or automatic reset
- Supply Voltage: 24 VDC
- Safety Outputs: 2 N/O (instantaneous)
- Auxiliary Output: 1 N/C (signalling)
- Performance Level: PLd, Category 3 per ISO 13849-1
- Safety Integrity Level: SIL 2 per IEC 62061
- Housing Width: 22.5 mm
- Mounting: 35 mm DIN rail
- Approvals: CE, UL, CSA, BG, TÜV
- Weight: approx. 400 g (packaged)
Note: All specifications are sourced from official PILZ documentation. Konmask.com does not modify or fabricate technical data.
Key Features & Benefits
- Dual-channel input monitoring — detects single-fault conditions in the E-stop or safety gate wiring, preventing dangerous undetected failures.
- Manual & automatic reset modes — flexible commissioning to match your machine’s risk assessment requirements.
- Compact 22.5 mm DIN-rail housing — minimises control cabinet footprint without sacrificing safety performance.
- Broad global approvals (CE / UL / CSA / BG / TÜV) — one part number satisfies compliance requirements across multiple export markets.
- Proven PNOZ X platform — 30+ years of field reliability; spare parts and documentation readily available worldwide.
- Simple wiring & commissioning — screw-terminal connections and clear LED diagnostics reduce installation time and troubleshooting effort.
- Cross-circuit detection — identifies short-circuits between the two input channels, a common wiring fault in harsh industrial environments.
Industry & Equipment Applications
- Automotive manufacturing — robotic welding, press lines, and body-shop transfer systems requiring E-stop monitoring at every station.
- Packaging machinery — guarding interlocks on form-fill-seal machines, palletisers, and case erectors.
- Food & beverage processing — safety gate monitoring on conveyors, mixers, and filling lines where washdown environments demand reliable hardwired safety.
- Woodworking & metalworking — CNC machining centres, saws, and press brakes where operator access must be controlled.
- Material handling & logistics — AGV charging stations, overhead cranes, and conveyor junction points.
- General machine building — any application requiring PLd / Cat. 3 E-stop or safety gate monitoring per ISO 13849-1.
System Integration & Compatible Parts
The PNOZ X2 774303 is designed to integrate directly into standard hardwired safety circuits. Typical companion components include:
- PILZ PNOZ X3 (774303 series) — three-channel safety relay for two-hand control applications on the same panel.
- PILZ PNOZ X4 / X5 — time-delayed safety relays for applications requiring controlled stop monitoring (Stop Category 1).
- PILZ PIT m B0 / B1 emergency-stop pushbuttons — direct-compatible E-stop devices with positive-opening NC contacts.
- PILZ PSS 4000 / PNOZmulti 2 — programmable safety controllers for larger systems where the PNOZ X2 feeds a safety input module.
- Safety contactors (e.g., Siemens 3SK, Schneider Preventa) — downstream force-guided contactors switched by the PNOZ X2 safety outputs.
Contact Konmask.com for cross-reference assistance or to source complementary safety components.
Our Quality Assurance Process
- Authorised sourcing channels — units are procured from verified distributors and authorised resellers to ensure genuine PILZ product.
- Visual & label inspection — every unit is checked for intact housing, correct order number label (774303), and undamaged terminals before dispatch.
- Functional verification — where applicable, basic power-on and output-state checks are performed prior to packaging.
- Secure anti-static packaging — ESD-safe bags and foam inserts protect sensitive electronics during international transit.
- Traceable documentation — certificates of conformity and, where available, original PILZ test reports accompany shipments on request.
How to Order
- Submit an enquiry via the “Get a Quote” button or email [email protected].
- Provide your required quantity, destination country, and any urgency requirements.
- Receive a formal quotation with lead time, shipping options, and payment terms within 1 business day.
- Confirm the order — we issue a proforma invoice and arrange dispatch upon payment clearance.
- Track your shipment with the provided courier reference; most international orders ship within 3–7 business days.
For urgent requirements or large-volume orders, please call +0086 19859288691 directly.
Why Choose Konmask.com?
- Industrial automation specialists — we focus exclusively on PLC, DCS, safety, and drive components; no generalist catalogue noise.
- Global B2B supply — serving OEMs, system integrators, and MRO teams across Asia, Europe, the Middle East, and the Americas.
- Hard-to-find parts — our supplier network covers obsolete, long lead-time, and short-run industrial components.
- Responsive technical support — our team includes engineers with hands-on PLC and safety system experience.
- Flexible logistics — DHL, FedEx, UPS, and sea freight options with full export documentation support.
- Transparent quotation process — no hidden fees; clear pricing, lead times, and terms before you commit.
Frequently Asked Questions
Q1: What is the difference between PILZ PNOZ X2 and PNOZ X2.1?
The PNOZ X2 (774303) operates on 24 VDC and is the standard dual-channel E-stop relay. The PNOZ X2.1 (774306) adds a wider supply voltage range (24–240 VAC/DC). Choose X2 for pure DC control circuits and X2.1 where AC supply flexibility is needed.
Q2: Can the PNOZ X2 774303 be used for safety gate / light curtain monitoring?
Yes. The PNOZ X2 accepts dual-channel OSSD inputs from safety light curtains and safety gate switches with positive-opening NC contacts, in addition to standard E-stop pushbuttons.
Q3: What performance level does the PNOZ X2 achieve?
When wired in a dual-channel configuration with cross-circuit detection enabled, the PNOZ X2 achieves PLd, Category 3 per ISO 13849-1 and SIL 2 per IEC 62061.
Q4: Is the PNOZ X2 774303 still in production?
As of the latest PILZ product portfolio, the PNOZ X series remains in active production. Konmask.com maintains stock and can source units on short lead times. Contact us to confirm current availability.
Q5: Do you provide a certificate of conformity with the PNOZ X2?
Yes. A certificate of conformity is available upon request. Original PILZ test documentation can be arranged for quality-critical procurement processes.
Q6: What is the minimum order quantity (MOQ)?
Konmask.com supplies from single units upward. There is no minimum order quantity for the PNOZ X2 774303.
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