Pilz Safety Parts, New Zealand
RFQ / Pilz
Send us the order number, not just the model name. On Pilz the two are not the same thing.
Pilz makes machine safety equipment: safety relays, safety controllers, sensors, guard locking switches and E-STOP devices. PNOZ relays in particular are on a very large number of machines built from the 1990s onward, and a great deal of that is still running in New Zealand.
We supply current production as a distributor and hold surplus and used for the older PNOZ generations.
Reference pages by category
We publish the order number tables we use ourselves, taken from Pilz documentation.
Safety relays
| Page | Covers |
|---|---|
| PNOZ X safety relays | Every PNOZ X model and order number, the 774/777/787 prefix decode, voltage variants and delayed contacts |
| PNOZsigma and PNOZelog | Every PNOZ s order number, the plus-30 voltage rule, and which modules are expansion only |
Safety controllers
| Page | Covers |
|---|---|
| PNOZmulti | Base units, expansion and gateways across three generations. Which modules are safety rated and which are not |
| PSS controllers, PIT devices and PMC drives | PSSuniversal and PSS u2 modules, PITmode and PITreader, PSENmlock full list, PMC servo and PMD monitors |
Sensors and safety switches
| Page | Covers |
|---|---|
| PSEN safety switches and sensors | PSENmag, PSENcode, PSENmlock and guard locking. Switch versus actuator packaging and coding principles |
| PSENopt light curtains | Type rating and resolution decode, protected field heights, mirror column sizing and cables |
The most important thing about ordering Pilz
Every Pilz part has a six-digit order number, and that is the actual part identifier. The model name on the front is not enough.
Take the PNOZ X3, one of the most common safety relays in the world. That name covers at least eight different parts.
| Order number | Model | Supply voltage |
|---|---|---|
| 774310 | PNOZ X3 | 24 V AC / 24 V DC |
| 774311 | PNOZ X3 | 42 V AC / 24 V DC |
| 774312 | PNOZ X3 | 48 V AC / 24 V DC |
| 774314 | PNOZ X3 | 110 V AC / 24 V DC |
| 774315 | PNOZ X3 | 115 V AC / 24 V DC |
| 774316 | PNOZ X3 | 120 V AC / 24 V DC |
| 774318 | PNOZ X3 | 230 V AC / 24 V DC |
| 774319 | PNOZ X3 | 240 V AC / 24 V DC |
All eight are 3 n/o, 1 n/c and 1 signalling output. They look identical on the DIN rail. Only the order number distinguishes them.
So if you tell us you need a PNOZ X3, we have to come back and ask. Send the six-digit number off the label and we can quote immediately.
If the label is unreadable, tell us the coil voltage and we will work it out.
The prefix tells you the generation and terminals
| Prefix | Range | Terminals |
|---|---|---|
| 774 | Classic PNOZ X series | Integral screw |
| 777 | PNOZ X P series, plug-in | Plug-in screw |
| 787 | PNOZ X P series, C variant | Plug-in cage clamp |
| 750 | PNOZsigma | Screw |
| 751 | PNOZsigma, C variant | Cage clamp |
| 772 | PNOZmulti 2 base units | |
| 40x | PIT operator and access devices | |
| 50x | PSEN safety switches | |
| 63x | PSENopt light curtains | |
| 100xxxx | Newer parts, seven digits | Varies |
Same relay, different terminals. 777301 and 787301 are both a PNOZ X2.8P at 24 V AC/DC with 3 n/o 1 n/c. One is screw, one is cage clamp. If your panel is wired for one, the other will not terminate.
The letter that decides whether it is safety rated
This trap runs through several Pilz ranges and is worth knowing before you order any module.
| Range | Safety rated | Standard, not safety rated |
|---|---|---|
| PNOZmulti inputs | PNOZ mi1p | PNOZ mi2p |
| PNOZmulti outputs | PNOZ mo1p | PNOZ mc1p |
| PSSuniversal | PSSu E F 4DI | PSSu E S 4DI |
| PSS u2 | PSS u2 EF 8DI | PSS u2 ES 8DID |
These modules fit the same base and appear to work identically. Only the safety-rated ones are part of the safety function. Fit the wrong one and the machine runs normally with the safety rating gone.
The Pilz product families
| Family | What it is | Status |
|---|---|---|
| PNOZ X | Electromechanical safety relays. The classic range | Mixed, widely installed |
| PNOZ s, PNOZsigma | Modular safety relays | Current |
| PNOZ e, PNOZelog | Electronic safety relays | Mature |
| PNOZmulti, PNOZmulti 2 | Configurable safety controllers | Current |
| PNOZmulti Mini | Compact configurable controllers | Superseded by PNOZ m B0.1 |
| P2HZ, P1HZ | Two-hand and one-hand control relays | Mixed |
| PZE | Contact expansion modules | Mixed |
| PSENmag, PSENcode | Non-contact safety switches | Current |
| PSENmech | Mechanical safety switches | Current |
| PSENmlock, PSENslock, PSENsgate | Safety gate systems and guard locking | Current |
| PSENopt, PSENopt II | Light curtains and light grids | Current |
| PSS, PSSuniversal, PSS u2, PSS67 | Safety programmable controllers and I/O | Mixed |
| PIT, PITreader, PITmode, PITestop | Operator, access and E-STOP devices | Current |
| PMD, PSWZ, PLID | Monitoring relays and standstill monitors | Mixed |
| PMC, PMCtendo, PMCprotego, PMCprimo | Servo drives, motors and motion controllers | Current |
| PMI | Operator terminals and safe HMI panels | Mixed |
| PST, PZW, PZA | Legacy relays | Long discontinued |
Reading the PNOZ model names
The name tells you the function even though it does not identify the part on its own.
| Element | Meaning |
|---|---|
| PNOZ | Safety relay |
| P2HZ | Two-hand control relay |
| P1HZ | One-hand control relay |
| X | Electromechanical range |
| s | PNOZsigma modular range |
| e | PNOZelog electronic range |
| m | PNOZmulti configurable range |
| V or v | With delayed contacts, as in PNOZ XV2 or PNOZ e1vp |
| P suffix | Plug-in connection terminals, as in PNOZ X3P |
| C suffix | Cage clamp terminals |
| Decimal, as in X2.1 | Variant within the family |
The V is worth watching for. A PNOZ XV2 has delayed contacts and a PNOZ X2 does not. If your circuit relies on an off-delay to allow a machine to coast to a stop before a guard releases, substituting the non-delay version removes that function entirely.
Important: safety replacements
Safety components are certified as part of a machine's safety function, with a rated Category or Performance Level.
A like-for-like replacement of the same order number preserves that assessment. A substitution may not. A relay with different contact configuration, different response time, or without delayed contacts can change the achieved Performance Level even if it physically fits and appears to work.
Our position is simple. We will supply the exact order number you specify. If you ask us to suggest an alternative we will tell you what we think is equivalent and what differs, but the decision on whether a substitution is valid for your safety function belongs to whoever is responsible for the machine's safety assessment. We are a parts supplier, not your safety engineer.
If the original is genuinely unobtainable, tell us and we will help you find it rather than pushing you toward a substitute.
What we can supply
Current production. PNOZsigma, PNOZmulti 2, PSSuniversal and PSS u2, PSEN sensors, PSENmlock and PSENslock guard locking, PSENopt light curtains, PIT control and access devices, PMD monitors, PMC drives. Quoted with a delivered lead time.
Mature and discontinued. The full PNOZ X range including the older voltage variants, PNOZelog, PNOZ p, P2HZ and P1HZ, PZE expansion, legacy PSS controllers and PMI terminals. Surplus and tested used.
The PNOZ X side is where we are most useful. A machine built in 2003 with a PNOZ X3 at 110 V AC needs that exact part, and the secondary market is often the only place it exists.
We buy Pilz
If you are decommissioning a machine, the safety relays are worth money to plants running the same generation. PNOZ X relays especially. See Sell To Us.
Common questions
I only have the model name, not the order number.
Tell us the coil voltage and contact configuration and we will identify it. Or send a photo of the label.
Can you get discontinued PNOZ relays?
Often. That is a large part of what we do.
Do you supply used safety relays?
Yes, where new is not available, tested and clearly described. See the note above about safety assessments.
Do I need the switch, the actuator, or both?
On PSEN safety switches the order number changes depending on what is in the box. Tell us which you need. See the PSEN page.
What is the lead time?
Ex stock items ship the next working day within New Zealand. We give you a firm lead time with the quote.
Do you quote in NZD?
Yes, in NZD including GST for New Zealand customers.
Related
For equivalent safety ranges from other brands see Allen-Bradley Guardmaster and Omron safety.
See also Siemens, Allen-Bradley and Omron.
Send us your order numbers
The six-digit number is what we need. One part or a full list. Quotes in NZD including GST.
Industech is an independent supplier of new, surplus and used industrial automation equipment. We are not an authorised distributor of, approved by, sanctioned by, or affiliated with Pilz GmbH & Co. KG. Pilz, PNOZ, PNOZmulti, PNOZsigma, PNOZelog, PSEN, PSS, PIT, PMC and PMD are trademarks of Pilz GmbH & Co. KG. All trademarks, brand names and order numbers are the property of their respective owners and are used here for identification purposes only. Information on this page is for identification and does not constitute a safety assessment.
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