Siemens Auxiliary Contact, 4 Contact, 2 NC/2 NO, Snap-On Mount, 10 A Contact Current, 600 V DC, 690 V AC, 3RH2911-1GA22

Siemens 3RH2911-1GA22 Auxiliary Contact is a high-quality contact block designed to augment contactors in electrical and automation systems. With a configuration of 4 contacts, comprising 2 normally closed (NC) and 2 normally open (NO), this snap-on mount unit facilitates monitoring and signaling functions in control panels and industrial machinery. Rated for a contact current of 10 A, it accommodates both 600 V DC and 690 V AC voltages, making it suitable for high-power applications.

The snap-on design allows quick and reliable installation on compatible Siemens contactors, enhancing system modularity and maintenance efficiency. This auxiliary contact block boasts a robust mechanical durability rated at 10 million cycles, ensuring outstanding long-term operational reliability. Its operational temperature range from -25°C up to 60°C permits usage under various environmental conditions, while the compact physical dimensions allow fitting in limited spaces.

Equipped with screw-type terminals, the device ensures secure electrical connections resistant to vibration and wear. Compliance with international standards such as EN 50012, EN 60947-5-1, DIN VDE 0116, and IEC 60947 underscores its safety and quality credentials. Manufactured in the Czech Republic, this Siemens auxiliary contact block is a reliable and efficient component in industrial automation, control gear systems, and electrical switchgear assemblies.

Equipped with 4 contacts configured as 2 normally closed and 2 normally open for versatile control applications. Snap-on mounting system enables easy and secure installation on main contactors. Rated contact current of 10 amperes ensures reliable performance under electrical load.

Supports high voltage applications with 600 V DC and 690 V AC contact voltage ratings. Mechanical durability of 10 million cycles guarantees long service life in demanding industrial environments. Wide operating temperature range from -25°C to +60°C suitable for diverse conditions.

Screw terminal type facilitates secure electrical connections. Compact dimensions enable installation in constrained control panel spaces. Conforms to multiple standards including EN 50012, EN 60947-5-1, IEC 60947, and DIN regulations ensuring high safety and quality.

Manufactured in Czech Republic, assuring authentic Siemens quality and precision.

This Auxiliary Contact block is ideal for applications in industrial and electrical automation, including programmable logic controllers (PLC) interfacing, status signaling, alarm systems, and safety interlocks. Its robust electrical ratings and mechanical longevity make it suitable for manufacturing plants, construction equipment panels, HVAC controls, and general industrial machinery setups.

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