The Pilz S1WP 9A 24VDC UM 0–415VAC/DC, part number 890020, is a precision-engineered monitoring relay designed to safeguard electrical systems by reliably supervising voltage levels. Belonging to Pilz’s trusted range of monitoring relays and devices, it ensures continuous oversight of supply and control voltages, helping protect machinery, equipment, and operators from potential electrical hazards.

Operating with a 24 V DC supply voltage and consuming only 2 W of power, the S1WP 9A offers an energy-efficient solution for integration into modern automation and control systems. Its low power requirements make it particularly suitable for compact control panels where space and energy efficiency are critical design factors. Despite its efficiency, it provides high-performance monitoring, reflecting Pilz’s commitment to combining safety, reliability, and practicality in one device.

A standout feature of this monitoring relay is its wide analogue input measurement range of 0 to 415 V AC/DC. This versatility allows it to be deployed across multiple industrial environments, from low-voltage control systems to higher-voltage applications. By continuously monitoring voltage levels, the device ensures that critical systems remain within safe operating parameters, triggering appropriate responses in the event of anomalies such as undervoltage, overvoltage, or loss of supply.

The robust electrical design ensures compatibility with maximum device circuit breakers, while its ability to accommodate practical conductor cross sections provides secure and reliable wiring connections. This enhances operational safety by reducing the likelihood of wiring failures or overheating under load conditions. The device’s durable build and compact form factor allow it to withstand the rigours of industrial use while simplifying installation and maintenance.

Applications for the Pilz S1WP 9A are wide-ranging. It can be used in machinery protection, ensuring motors and drives operate within safe voltage ranges; in process automation, maintaining the stability of control systems; and in plant-wide monitoring, where continuous voltage supervision is essential for maintaining uptime and preventing costly downtime. Its reliability makes it suitable for industries such as manufacturing, packaging, automotive, and energy distribution.

Like all Pilz monitoring devices, the S1WP 9A 24VDC UM 0–415VAC/DC is built to meet stringent international standards for safety and performance. Its robust monitoring capabilities, combined with the efficiency of its design, ensure not only compliance but also long-term reliability in protecting both people and equipment.

In summary, the Pilz S1WP 9A 24VDC UM 0–415VAC/DC (890020) is a compact yet powerful monitoring relay that delivers dependable voltage supervision across a broad input range. With its low energy consumption, durable construction, and proven reliability, it plays a vital role in enhancing machine safety, maintaining stable operations, and ensuring compliance with industrial safety requirements.