Three Safety Contacts
The PNOZ S4 provides three normally open safety contacts for safety-related switching circuits.
PILZ
PILZ PNOZ S4 750104 Safety Relay 3NO 1NC 22.5mm
$110.57
Available
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PILZ
PILZ PNOZ S4 750104 Safety Relay 3NO 1NC 22.5mm
PRODUCT PRICE
USD
$110.57
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | PILZ |
| Model Number | PNOZ S4 |
| Product Category | Safety Relay |
| Product Family | PNOZsigma |
| Relay Type | Standalone Safety Relay |
| Safety Contacts | 3 Normally Open (N/O) |
| Auxiliary Contacts | 1 Normally Closed (N/C) |
| Semiconductor Outputs | 1 |
| Input Channels | 1-Channel or 2-Channel Wiring |
| Number of Inputs | 2 |
| Cross-Circuit Detection | Supported with Appropriate Wiring |
| Supply Voltage Variants | 24 VDC (750104); 48-240 VAC/DC (750134) |
| Safety Contact Rating, AC1 | 6 A at 240 VAC |
| Safety Contact Rating, DC1 | 6 A at 24 VDC |
| Module Width | 22.5 mm |
| Electrical Connection | Plug-in Screw Terminals for 750104 and 750134 |
| Mounting Position | Any |
| Housing Protection | IP40 |
Key Features
Auxiliary and Semiconductor Outputs
The relay includes one normally closed auxiliary contact and one semiconductor output for supported indication and monitoring functions.
Single- or Dual-Channel Monitoring
The input architecture supports one-channel or two-channel wiring with cross-circuit detection according to the selected configuration.
Emergency Stop Monitoring
The PNOZsigma safety relay is designed for monitoring emergency stop circuits in industrial machinery.
Safety Gate Monitoring
The relay supports safety gate monitoring applications when connected and configured according to the applicable safety circuit requirements.
22.5mm Module Width
The PNOZ S4 has a documented housing width of 22.5 mm, with plug-in screw terminal connections on the specified 750104 and 750134 versions.
Applications
- Industrial emergency stop monitoring
- Machine safety gate supervision
- Protective door monitoring systems
- Safety light guard monitoring with supported configurations
- Industrial machinery safety circuits
- Conveyor emergency stop systems
- Manufacturing equipment safety control
- Industrial machine safety panel installations
Purchase Information
We support online purchase of the PILZ PNOZ S4 Safety Relay. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is PILZ PNOZ S4?
PILZ PNOZ S4 is a PNOZsigma standalone safety relay designed for monitoring safety-related circuits such as emergency stops and safety gates.
How many safety contacts does PNOZ S4 provide?
The relay provides three normally open safety contacts.
Does PNOZ S4 have an auxiliary contact?
Yes. It includes one normally closed auxiliary contact in addition to the three normally open safety contacts.
Does PNOZ S4 include a semiconductor output?
Yes. The documented configuration includes one semiconductor output for supported monitoring or indication functions.
What supply voltage does PNOZ S4 use?
The supply voltage depends on the product version. Part number 750104 operates at 24 VDC, while part number 750134 supports 48-240 VAC/DC. The exact part number must be checked before ordering.
Does PNOZ S4 support dual-channel monitoring?
Yes. The relay supports one-channel and two-channel input arrangements, with cross-circuit detection available through the appropriate wiring configuration.
Can PNOZ S4 monitor emergency stop circuits?
Yes. Emergency stop monitoring is one of the documented applications of the PNOZ S4 safety relay.
Can PNOZ S4 be used for safety gate monitoring?
Yes. Safety gate monitoring is a documented application, subject to the required safety circuit design and wiring.
What is the contact current rating?
The documented maximum safety contact current under AC1 conditions is 6 A at 240 VAC, and under DC1 conditions it is 6 A at 24 VDC. Other load categories have different ratings.
What is the width of PNOZ S4?
The documented module width is 22.5 mm.
Are all PNOZ S4 versions identical?
No. PNOZ S4 variants differ in supply voltage and may differ in terminal configuration or application capabilities. The full part number and product label should be checked.
What should be verified before ordering PILZ PNOZ S4?
Verify the exact part number, supply voltage, terminal type, safety contact configuration, input wiring, monitored safety devices, required safety performance and installation requirements against the machine safety documentation.
Need help confirming a model?
Send us your part number and technical requirements.
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