The Pilz S1UM 110-130VAC UM 0.1-500VAC/DC is a monitoring relay designed to provide precise and reliable voltage supervision in industrial control systems. Monitoring relays form a vital part of safety and automation infrastructures, ensuring that electrical parameters remain within acceptable ranges to protect equipment and safeguard processes.

This model operates with a supply voltage of 110–130 V AC, making it well-suited to control networks where this medium-voltage range is standard. Its core strength lies in its ability to monitor voltages from 0.1 to 500 V AC/DC, providing an exceptionally wide operating window. This versatility allows it to be used across diverse applications, from low-voltage signal monitoring to high-voltage power supervision, reducing the need for multiple specialised devices.

Engineered for efficiency, the device has a power consumption of only 2 VA during AC operation. This low energy requirement makes it an environmentally friendly and cost-effective option for continuous monitoring, contributing to reduced operating costs while maintaining high performance.

Compliance with EN 60947-4-1 utilisation category AC/DC-1 underscores its reliability in industrial environments. This standard ensures the device is suitable for switching and monitoring resistive loads, supporting safe and predictable behaviour in control circuits. By adhering to these recognised international standards, the relay provides assurance of durability and performance consistency.

The relay is designed for seamless integration into control panels and switchgear, with provision for appropriate device circuit breakers and conductor cross-sections to support safe installation. Its compact form factor simplifies wiring and panel layout, making it a practical choice for machine builders and system integrators seeking efficiency without compromising reliability.

Applications for the S1UM 110-130VAC UM 0.1-500VAC/DC include motor protection, process control, power distribution monitoring, and safeguarding of automation systems. Its wide monitoring range ensures early detection of overvoltage or undervoltage conditions, enabling timely interventions to prevent equipment damage or unsafe operating states.

By continuously supervising voltage levels, the device enhances system stability and supports compliance with industrial safety requirements. Whether applied in manufacturing, energy distribution, or building automation, it provides peace of mind by ensuring electrical conditions remain within defined parameters.

In summary, the Pilz S1UM 110-130VAC UM 0.1-500VAC/DC monitoring relay offers exceptional flexibility and dependability. With its wide 0.1–500 V monitoring range, medium-voltage 110–130 V AC supply, low power consumption, and compliance with EN 60947-4-1 standards, it delivers a robust solution for protecting industrial systems from voltage irregularities while ensuring reliable operation in diverse applications.