Siemens Auxiliary Contact 2 Contacts 1 NO/1 NC Snap-On Mount 10 A 250 V DC 690 V AC 3RH2911-1FB11

Siemens 3RH2911-1FB11 Auxiliary Contact is a high-quality industrial automation component designed for enhancing contactor functionality. It provides 2 contacts configured as one normally open (NO) and one normally closed (NC), making it ideal for signal and control circuit applications requiring reliable switching.

This auxiliary contact features a snap-on mount design that allows easy attachment to compatible Siemens contactors, ensuring secure mechanical and electrical integration. Its screw type terminals provide dependable and robust connections suited for demanding industrial environments.

Rated for a contact current of 10 amperes, the contact supports both DC voltages up to 250 volts and AC voltages up to 690 volts, catering to a broad range of electrical control systems. The device is built to deliver a mechanical durability of 10 million switching cycles, guaranteeing extended operational life.

Designed for front mounting, the contact operates effectively in temperature ranges from -25°C to 60°C, suitable for industrial, manufacturing, electrical automation, and HVAC control systems. Compliance with IEC 60947-4-1 and IEC 60947-5-1 standards ensures that the auxiliary contact meets global safety and performance regulations.

Features 2 contacts with normal state configuration: 1 NO and 1 NC. Snap-On mount type for easy and secure installation. Contact current rating: 10 A. Contact voltage rating: 250 V DC and 690 V AC. Screw terminal type for reliable electrical connection.

DPST contact configuration. Rated insulation voltage of 690 V for safety. Mechanical durability up to 10 million cycles. Operational current Ie rated at 10 A. Front mounting location compatibility. Operating temperature range from -25°C to 60°C.

Complies with IEC 60947-4-1 and IEC 60947-5-1 standards.

This auxiliary contact is widely used across industrial automation, construction electrical control panels, manufacturing process controls, and HVAC control systems where precise and reliable contact switching is crucial. It complements Siemens contactors in automation setups providing additional signaling and control inputs.

Explore further Siemens components and Auxiliary Contacts in the Electronics & Electricals Automation & Control Gear category on EnvMart for high reliability and engineering-grade products tailored for professional use.