Siemens 3RH1921-2EE02 SIRIUS Lateral Aux Switch, 2NC, Spring-Type Original Brand New

Overview: Reliable Control Circuit Expansion

The Siemens 3RH1921-2EE02 is a high-quality, SIRIUS line lateral auxiliary switch block designed for seamless expansion of the control circuit in Siemens 3RT1 power contactors (sizes S0 to S12). This indispensable component is engineered for reliability, featuring two Normally Closed (2 NC) instantaneous contacts in an encapsulated design, making it solid-state compatible for reliable switching in modern control systems.

Installation is quick and tool-free thanks to its lateral snap-on mounting design, ensuring a secure and efficient connection. The inclusion of robust spring-type terminals (also known as spring-loaded or push-in terminals) provides a vibration-proof and maintenance-free electrical connection.

Key Benefit

• Optimized for Digital Control: Encapsulated contacts are solid-state compatible, ensuring dependable operation even with low-power electronic control signals (e.g., from PLCs).
• Quick Installation: Lateral snap-on mounting allows for tool-free fitting onto 3RT1 contactors, saving time and simplifying assembly.
• Maintenance-Free Connection: Features secure spring-type terminals which are vibration-resistant and eliminate the need for periodic retightening of screws.
• Reliable Feedback: Provides two Normally Closed contacts for crucial status feedback and interlocking functions within the control circuit.
• Part of the SIRIUS System: Ensures seamless compatibility, quality, and integration with the established Siemens SIRIUS modular system of low-voltage industrial control components.

Application

The 3RH1921-2EE02 is essential for a wide range of industrial control and automation applications requiring reliable auxiliary signaling, including:

• Motor Control Circuits
• Machine Safety Interlocks
• Signaling and Indicator Circuits
• Programmable Logic Controller (PLC) Inputs
• General Control Circuit Logic

For more of our high-quality industrial automation products, including the full Siemens SIRIUS range, visit Turll today!