Siemens 3RH2 Contactor, 110V DC Coil, 10 A Current, 2 NO/2 NC, 600 V DC, 690V AC 136-3643

Siemens 136-3643 contactor is a high-quality 3RH2 series device designed for industrial automation and control gear applications. It features a 110V DC coil voltage and supports contact currents of 10 A, with a dual auxiliary contact configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatile control options.

This contactor operates efficiently within a wide ambient temperature range from -25°C to 60°C, making it suitable for various demanding industrial environments. It can handle contact voltages of up to 600 V DC and 690 V AC, supporting a broad range of electrical control systems.

The product is designed for DIN rail mounting, simplifying installation processes in electrical panels. Its screw terminal type ensures firm and reliable electrical connections essential for continuous operation. Dimensions are compact with a length of 45 mm, width of 73 mm, and depth of 57.5 mm, optimizing panel space utilization.

Siemens 136-3643 meets multiple standards and approvals including IEC 60947-1, IEC 60947-4-1, IEC 60947-5-1, UL/CSA, KC, EMV, and features IP20 finger-safe protection. The contactor relays are climate-proof and provide a high degree of contact stability even at low voltages and currents, suitable for solid-state circuits with currents ≥ 1 mA at voltages ≥ 17 V.

Additional features include the ability to expand through snap-on auxiliary switch blocks by up to four contacts. The contactor’s coil surge suppression can be augmented with RC elements, varistors or diodes, effectively reducing voltage peaks and ensuring operational reliability.

This device is ideally used in industrial automation systems, manufacturing processes, and HVAC controls, providing robust and reliable switching performance. Siemens’s precision engineering and global standards compliance make this product a dependable choice for demanding electrical control applications.

Designed for use with control circuits operating at 110V DC voltage. Supports contact voltages up to 600 V DC and 690 V AC. Mountable on DIN rail for easy installation and maintenance. Suitable for industrial automation and control applications.

Operating temperature range from -25°C to 60°C ensures reliable performance. Equipped with screw terminal type for secure electrical connections. Compact dimensions with length 45mm, width 73mm, depth 57.5mm. Compliance with IEC 60947 series standards, UL/CSA, KC, and IP20 protection class.

Provides high degree of contact stability at low voltages and currents. Includes capability for expansion by up to four contacts through snap-on auxiliary switch blocks. Explore more Siemens electrical automation products and contactors within the Relays & Contactors category on EnvMart.