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Home Product PNOZ s4 24VDC 3NO 1NC Safety Relay by Pilz - Machine Guarding Module
PNOZ s4 24VDC 3 n/o 1 n/c

PNOZ s4 24VDC 3NO 1NC Safety Relay by Pilz - Machine Guarding Module

PNOZ s4 safety relay
24VDC 3n/o 1n/c
Pilz PNOZ s4 relay
PNOZ s4 24VDC 3 n/o 1 n/c
The Pilz PNOZ s4 safety relay operates at 24VDC, featuring 3n/o and 1n/c contacts for versatile safety circuit integration. Designed for reliable machine protection and emergency stop applications. Compact, DIN-rail mounted, compliant with safety standards. Pilz PNOZ s4 relay ensures fail-safe operation in industrial automation systems.
Categories:Automation
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Product Description

The Pilz PNOZ s4 safety relay is a robust 24VDC control module designed for industrial safety applications such as machinery emergency stops, gate monitoring, and safety interlocking. Featuring 3 normally open (n/o) and 1 normally closed (n/c) output contacts, it supports direct connection to safety sensors and actuators, with integrated diagnostics for fault detection. Operating within a voltage range of 20.4–28.8VDC and a temperature range of -20°C to +55°C, it ensures reliable performance in harsh environments. The PNOZ s4 relay is expandable via modules for multi-channel systems but lacks advanced communication interfaces, relying on hard-wired connections. Its compact design, SIL 3 compliance, and easy integration make it ideal for manufacturing, automotive, and packaging industries. Disadvantages include limited scalability beyond basic safety loops and no built-in display or battery backup.
Parameter Specification
Model PNOZ s4 24VDC 3n/o 1n/c
Category Safety Relay
Rated Voltage 24 VDC
Contact Configuration 3 Normally Open (3n/o), 1 Normally Closed (1n/c)
Safety Standards EN ISO 13849-1, EN 62061, IEC 61508
Response Time ≤ 20 ms
Mechanical Lifetime 10 million cycles
Electrical Lifetime 1 million cycles (at rated load)
Operating Temperature -20°C to +55°C
Protection Rating IP20
Certifications CE, UL, CSA
Mounting DIN Rail Mountable
Dimensions (WxHxD) 45 mm x 99 mm x 115 mm
Weight ≈ 250 g
question:Why can other suppliers offer discontinued models you can't provide?
answer:They might source from unauthorized channels. We prioritize genuine, reliable stock to protect your project integrity.
question:Why choose your company over direct manufacturers?
answer:As Asia's leading industrial automation supplier with 20+ years' expertise, 85% clients are repeat customers, ensuring quality and trust.
question:Do you offer technical selection support?
answer:Yes, our engineers provide free technical guidance to ensure optimal product selection for your application.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Why can other suppliers offer discontinued models you can't provide?
answer:They might source from unauthorized channels. We prioritize genuine, reliable stock to protect your project integrity.
question:Why choose your company over direct manufacturers?
answer:As Asia's leading industrial automation supplier with 20+ years' expertise, 85% clients are repeat customers, ensuring quality and trust.
question:Do you offer technical selection support?
answer:Yes, our engineers provide free technical guidance to ensure optimal product selection for your application.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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