PILZ 773540 PNOZ ml1p Safety Relay Module | Replacement, Equivalent & Selection Guide
The PILZ 773540 PNOZ ml1p is a compact safety relay expansion module from the PILZ PNOZmulti modular safety controller series. Designed for machine safety applications requiring SIL 3 / PLe compliance, it provides reliable monitoring of safety functions including emergency stop, safety gates, and two-hand control circuits.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 773540 |
| Model | PNOZ ml1p |
| Brand | PILZ |
| Series | PNOZmulti 2 |
| Module Type | Safety Relay Expansion Module |
| Safety Category | SIL 3 (IEC 62061), PLe / Cat. 4 (ISO 13849-1) |
| Supply Voltage | 24 V DC |
| Output Contacts | Safety outputs (refer to datasheet) |
| Connection Type | Screw terminals |
| Mounting | DIN rail (35 mm) |
| Operating Temperature | 0 °C … +55 °C |
| Protection Rating | IP20 |
| Weight | approx. 120 g |
| Certifications | CE, UL, cUL, TÜV |
Compatible Replacement & Equivalent Models
When the PILZ 773540 PNOZ ml1p is unavailable or requires a cost-effective alternative, the following models may be considered as functional equivalents or drop-in replacements (always verify electrical and safety parameters before substitution):
| Brand | Model | Notes |
|---|---|---|
| PILZ | PNOZ ml2p (774040) | Expanded I/O version within same PNOZmulti 2 series |
| PILZ | PNOZ m B0 (773100) | Base unit; pair with ml1p for full system |
| Siemens | 3SK1111-1AB30 | SIRIUS Safety Relay; verify wiring compatibility |
| Omron | G9SX-AD322-T15 | Functional equivalent for E-stop / gate monitoring |
| Schmersal | SRB301LC/B | Comparable safety relay module; check I/O mapping |
⚠ Disclaimer: Cross-reference data is provided for reference only. Always consult the original datasheet and a qualified safety engineer before substituting safety-critical components.
Why Choose the Original PILZ 773540 PNOZ ml1p
- Certified Safety Performance: Factory-certified to SIL 3 / PLe — no re-validation required when using genuine parts.
- Seamless PNOZmulti 2 Integration: Plug-and-play expansion within the PILZ modular ecosystem; configured via PNOZmulti Configurator software.
- Proven Reliability: Widely deployed in automotive, packaging, and press machinery worldwide.
- Long Service Life: Designed for high switching cycles with minimal maintenance.
- Global Compliance: Meets CE, UL, TÜV, and international machine safety directives.
Typical Applications
- Emergency stop (E-stop) circuit monitoring
- Safety gate / interlocking door monitoring
- Two-hand control systems
- Light curtain and safety mat integration
- Press brakes, injection molding machines, robotic cells
- Conveyor and packaging line safety circuits
System Compatibility
The PNOZ ml1p is an expansion module designed exclusively for use with the PNOZmulti 2 base units (e.g., PNOZ m B0, PNOZ m B1). It is not compatible with the original PNOZmulti (first generation) base units. Configuration is performed using the free PNOZmulti Configurator software (v10.x or later recommended).
- Compatible base units: PNOZ m B0 (773100), PNOZ m B1 (773101), PNOZ m EF (773400)
- Max. expansion modules per base: refer to base unit datasheet
- Communication: Internal PNOZmulti bus (no separate fieldbus required for expansion)
Selection Guide
Use the following criteria to confirm the PILZ 773540 PNOZ ml1p is the right module for your application:
| Requirement | Recommendation |
|---|---|
| Need SIL 3 / PLe safety level | ✅ PNOZ ml1p is suitable |
| Using PNOZmulti 2 base unit | ✅ Direct plug-in expansion |
| Using first-gen PNOZmulti base | ❌ Not compatible — select PNOZ m B0 + ml1p combo |
| Need fieldbus communication (Profinet/EtherNet/IP) | Consider PNOZ m EF communication module |
| Need more I/O channels | Consider PNOZ ml2p (774040) |
| Budget-sensitive application (SIL 2 acceptable) | Evaluate Siemens 3SK or Omron G9SX series |
Quality Assurance & Sourcing
At Konmask.com, all PILZ modules are sourced through verified industrial supply channels. Each unit undergoes:
- Visual inspection and packaging integrity check
- Part number and label verification against PILZ documentation
- Functional pre-shipment testing where applicable
We supply new, original, and surplus stock of PILZ automation components to industrial buyers globally. All products ship with original manufacturer packaging where available.
How to Order
- Confirm your base unit model (PNOZmulti 2 series required).
- Verify required safety level (SIL 3 / PLe) matches your machine risk assessment.
- Add PILZ 773540 PNOZ ml1p to cart or contact us for bulk pricing.
- For OEM / project quantities (>5 units), request a quote via support@konmask.com.
- Lead time: typically in-stock; expedited shipping available.
Replacement & Compatibility FAQ
Q: Can the PNOZ ml1p replace a first-generation PNOZmulti module?
A: No. The ml1p is designed for PNOZmulti 2 base units only. First-generation systems require dedicated first-gen expansion modules.
Q: Is the PILZ 773540 still in production?
A: PILZ periodically updates its PNOZmulti 2 lineup. Contact us to confirm current production status and available stock.
Q: Can I use a Siemens or Omron module as a direct replacement?
A: Functionally similar modules exist, but they are not drop-in replacements — wiring, configuration, and safety validation must be redone. Always consult a certified safety engineer.
Q: What software is needed to configure the PNOZ ml1p?
A: PILZ PNOZmulti Configurator (free download from PILZ website). Version 10.x or later is recommended.
Q: Do you offer warranty on PILZ modules?
A: Yes. We offer a standard warranty on all new original stock. Contact us for details.
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