Siemens Auxiliary Contact, 4 Contact, 4 NO Poles, Snap-On Mount, 10 A, 250 V dc/690 V ac, Series 3RH2, Model 3RH2911-1FA40

Siemens 3RH2911-1FA40 Auxiliary Contact is an electromechanical device designed to supplement primary switching equipment in industrial and automation applications. Featuring four normally open contacts, the device operates at a contact current rating of 10 A and supports contact voltages up to 250 V DC and 690 V AC. Its snap-on mounting system enables simple and quick installation on the front side of primary switches.

The auxiliary contact employs screw-type terminal connections to ensure secure and reliable conductance even in environments subject to jolts and vibrations. It operates over a wide temperature range from -25°C to +60°C, making it suitable for use in harsh industrial conditions. This model offers a mechanical durability rated for 10 million cycles, providing a long service life in demanding applications.

With a 4PST configuration comprising four poles and single throw, all contacts are normally open, allowing for expanded switching capabilities in relay logic and motor control schemes. The device carries a rated insulation voltage of 690 V, ensuring compliance with safety and operational standards.

The robust plastic housing protects the internal components from corrosive and abrasive damage while the product conforms to international standards including CCC, CSA, UL, and CE. Made in the Czech Republic, it is ideal for integration in electrical control panels, industrial automation systems, relay assemblies, and protection circuits.

Designed for industrial, manufacturing, and electrical distribution applications, the Siemens 3RH2911-1FA40 auxiliary contact delivers reliable switching operation and enhanced system control. Its front-side mountability and compact design facilitate efficient panel layouts and maintenance procedures.

The device supports a contact current rating of 10 A for both AC and DC voltages. Compatible with 250 V DC and 690 V AC contact voltages for versatile electrical applications. Snap-on mounting type allows quick assembly and easy integration with existing control setups.

Features screw terminal connections ensuring reliable and secure electrical contacts. Designed for a broad operating temperature range from -25°C to +60°C, suitable for extreme environments. Has a mechanical durability of 10 million cycles for long-lasting performance.

Includes four pole, single throw (4PST) configuration with all contacts normally open (4 NO). Equipped with rated insulation voltage of 690 V for enhanced safety and compliance. Constructed with durable housing to withstand vibrations and shocks in industrial use.

Manufactured in Czech Republic, meeting multiple standards including CCC, CSA, UL, and CE. Explore more advanced automation and control gear components available at EnvMart to meet your industrial equipment needs.

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