Pilz PNOZ 1 3S/1O Safety Relay

Description

The Pilz PNOZ 1 is a robust and reliable safety relay designed for critical safety functions in industrial automation. This unit is specifically engineered for monitoring emergency stop (E-STOP) circuits and safety gates. Operating on a 24VDC power supply, it provides a dependable solution for ensuring machine and operator safety. As an obsolete model, it serves as a crucial spare part for maintaining legacy systems.

Specifications

• Supply Voltage: 24VDC, 3.5W
• Safety Outputs: 3 N/O (Normally Open)
• Auxiliary Outputs: 1 N/C (Normally Closed)
• Contact Rating (AC-15): 230V, 5A
• Contact Rating (DC-13): 24V, 7A
• Contact Rating (AC-1): 240V 8A / 400V 5A
• Connection: Screw terminals

Label Info

• Manufacturer: Pilz GmbH & Co. KG
• Model: PNOZ 1 3S/1O
• Ident. Nr.: 475695

Application

This safety relay is ideal for single or dual-channel emergency stop applications, safety gate monitoring, and other safety circuits in manufacturing, packaging, and material handling systems where this specific model is required for replacement.

Country of Origin

Made in Germany.

CO2 Impact

By reusing this component, you are actively contributing to the circular economy and avoiding the CO2 emissions associated with manufacturing a new part. This unit represents a saving of approximately 10 kg of CO2.

Availability

This is an obsolete item, perfect for use as a spare part to extend the lifespan of existing machinery. Availability is limited. Order now from PLC2Day for expert support and fast delivery.

FAQ

Question? What is the primary function of the PNOZ 1 3S/1O?

Its primary function is to monitor safety inputs like emergency stop buttons or safety gate switches. In case of an emergency signal, it safely switches off the connected machinery.

No, the PNOZ 1 series is obsolete. It is highly recommended as a direct replacement spare part for existing systems to avoid costly redesigns and maintain original machine validation.

'3S' stands for three safety contacts (Normally Open), and '1O' stands for one auxiliary contact (Often referred to as O for 'Output' or 'Offner' in German, meaning Normally Closed).

Last Update: Friday, March 13, 2026

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