Siemens Auxiliary Contact, 4 Contact, 2 NC/2 NO, Snap-On Mount, 10 A, 250V AC, 690 V AC, Series 3RH2 3RH2911-1HA22

Siemens 3RH2911-1HA22 Auxiliary Contact, part of the 3RH2 series, is a high-performance electromechanical device with four contacts configured as two normally closed (NC) and two normally open (NO). Designed to be mounted on the front side with a snap-on mounting style, this auxiliary contact is ideal for expanding the switching capabilities of main contactors and relays in industrial electrical systems.

This unit supports an operational contact current of 10 A and contact voltage ratings of 250 V AC and 690 V AC while providing a rated insulation voltage of 690 V, offering robust electrical endurance. It features screw terminals to ensure secure and stable connectivity during high-demand operations.

With a mechanical durability rated at 10 million cycles and a wide operating temperature range from -25°C to 60°C, the 3RH2911-1HA22 is suitable for harsh industrial environments and long-term deployment without compromise.

The IP20 rated enclosure provides touch-proof protection, enhancing safety during installation and maintenance. This auxiliary contact is widely used in automation control systems including relay logic circuits, solid-state electronics interfaces, and electric motor control mechanisms.

Applications span across industrial automation, manufacturing, HVAC systems, and electrical power distribution where reliable signal transmission and equipment control are essential.

This product is manufactured in the Czech Republic, ensuring high quality and adherence to international manufacturing standards. This auxiliary contact supports a contact current of 10 A for robust performance. The snap-on mount and screw terminal types enable quick installation and secure connectivity.

Wide operating temperature range from -25°C to +60°C allows for use in harsh environments. Rated insulation voltage is 690 V AC with contact voltages up to 690 V AC. Mechanical durability of up to 10 million cycles ensures long service life.

Designed for front-side mounting to complement primary switching equipment seamlessly. IP20 ingress protection rating offers touch-proof safety during operation. Ideal for applications including relay logic circuits, solid-state electronics, and electric motor control.

Explore more products in the Siemens Automation & Control Gear category at EnvMart for comprehensive industrial automation solutions.

Explore more products in our Auxiliary Contacts category.