Siemens Auxiliary Contact, 2 Contact, 2 NO, SIRIUS Innovations Series, Snap-On Mount, 10 A, 250 V dc, 690 V 3RH2911-1DA20

Siemens 3RH2911-1DA20 Auxiliary Contact is a precision-engineered electrical component designed to extend the functionality and control of Siemens contactors and automation equipment. Featuring 2 normally open (NO) contacts, this auxiliary contact enables additional signaling or interlocking functions in electrical control circuits. The product is part of the SIRIUS Innovations Series known for reliability in industrial environments.

It employs a Snap-On mount type, simplifying integration with compatible contactors while ensuring mechanical stability. Screw terminal connections provide secure and easy wiring interfaces. The auxiliary contact accommodates contact currents up to 10 A, operating reliably at contact voltages of 250 V dc and 690 V ac, with a rated insulation voltage of 690 V for safety during demanding operational conditions.

Mechanical durability is rated at 10 million cycles, demonstrating long-term reliability and reducing maintenance needs. The device supports a wide temperature range from -25°C to 60°C, facilitating usage in diverse industrial environments. The lateral mounting location specification promotes flexible installation options where space constraints are a concern. This auxiliary contact features a double-pole, single-throw (DPST) configuration allowing control of two independent circuits simultaneously.

This Auxiliary Contact is ideal for industrial automation, electrical panel building, manufacturing, HVAC systems, and various control gear applications, enabling precise control and extended automation functionality.

Equipped with 2 NO contacts for auxiliary switching purposes. Part of the durable SIRIUS Innovations Series from Siemens. Snap-On mounting type enables fast and secure attachment. Screw terminal type ensures reliable electrical connections.

Rated insulation voltage of 690 V allows safe high-voltage applications. High mechanical durability with 10 million operational cycles. Designed for operation in temperatures from -25°C to 60°C. Lateral mounting location for flexible panel layouts.

DPST pole and throw configuration for dual circuit control. Choose Siemens products on EnvMart for calibrated industrial-grade components verified for new condition quality and reliability.