SIRIUS Control and Protection Products 3RT7 Series

Siemens SIRIUS 3RT7 Control & Protection Products: Compact, high-performance contactors and relays with superior design for versatile industrial applications.

• 3RT7 contactors (6–95 A)
• 3RU7 thermal overload relays (0.11–100 A)
• 3RH7 intermediate relays (4 contacts, expandable to 8 contacts)

The SIRIUS 3RT7 series expands Siemens’ control and protection portfolio with a modern, compact and reliable solution designed to deliver strong performance and installation flexibility. Introduced in 2021, the 3RT7 series supports a wide range of motor control applications while maintaining consistent quality and ease of integration.

With modular integration, wide operating ranges and simplified wiring features, the 3RT7 series helps streamline panel design and improve operational reliability across industrial environments.

Reduce installation time with convenient wiring design, strip-length indicators and compact dimensions that support efficient panel assembly.

Support stable motor control with wide temperature and voltage operating ranges that help maintain dependable performance in varying industrial environments.

Adapt to application needs with expandable relay contacts and modular integration between contactors and thermal overload relays.

Combined contactors, overload relays and intermediate relays form a coordinated and scalable system.

Optimized dimensions support high panel density while maintaining strong operational performance.

Included strip-length indicators and simplified wiring layout support safer faster and more consistent installation.