Siemens Monitoring Relay DPDT Contact Configuration DIN Rail Mount 230V AC, 24 V DC 3RN2011-1BA30

Siemens 3RN2011-1BA30 Monitoring Relay is a robust and compact device designed with DPDT contacts for effective motor temperature protection. Intended to monitor thermistor sensors, it accurately detects faults such as short circuits and wire breaks, ensuring motor safety in diverse industrial applications. The relay operates on a supply voltage of 230V AC and a control voltage of 24 V DC, supporting a contact current rating of 5A.

Its compact housing of 90mm length, 22.5mm width, and 100mm height mounts securely on a standard 35mm DIN rail, making it ideal for electrical cabinets and control panels. The screw terminal type ensures reliable electrical connections. Designed to perform reliably in harsh environments, it functions over a temperature range of -25°C to +60°C and carries CE certification, alongside ATEX approval for usage in hazardous locations.

The relay features galvanic isolation to protect sensitive components and LED indicators to provide real-time operational status, facilitating easy diagnostics and maintenance. It is widely applicable in industrial temperature protection systems, motor monitoring setups, and condition monitoring applications where dependable temperature sensing and protection are critical.

Dual-changeover DPDT contact configuration supports diverse control circuits. DIN rail mount design simplifies installation and integration. 230V AC and 24 V DC supply voltages provide flexible power options. 5A contact current rating with secure screw terminals.

Galvanic isolation safeguards internal electronics. LED indicators facilitate status monitoring and troubleshooting. Operating temperature range from -25°C to +60°C suits industrial environments. CE and ATEX certifications ensure compliance and safety in hazardous zones.

Compact dimensions enable efficient panel space usage. Suitable for motor temperature monitoring and thermistor sensor fault detection.

This Siemens Monitoring Relay is an essential component for industrial automation, condition monitoring, and protective relay systems. It integrates seamlessly into motor protection circuits to enhance system safety and operational reliability. For more Siemens electrical and automation products, explore the extensive EnvMart catalog.