Siemens 3RH2911-2DE11 Lateral Auxiliary Switch, Solid-State Compatible, Spring-Loaded Terminals Original Brand New

Overview

The Siemens 3RH2911-2DE11 is a high-quality, solid-state compatible lateral auxiliary switch designed for seamless integration with 3RT2.1 series contactors. This compact and reliable component provides an essential function in control circuits by expanding the switching capabilities of the main contactor. Featuring a configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) contact, it offers versatile control options for various industrial applications.

Key Features & Benefit

• Solid-State Compatible: Engineered to work flawlessly with solid-state devices, ensuring reliable performance in modern control systems.
• Lateral Mounting: Designed for easy and secure lateral mounting on 3RT2.1 contactors, saving panel space and simplifying installation.
• 1 NO + 1 NC Contact Configuration: Provides a versatile combination of switching options, allowing for both ‘make’ and ‘break’ actions in your control circuit.
• Spring-Loaded Terminals: The innovative spring-loaded terminals ensure a secure, vibration-proof connection without the need for tools, reducing installation time and maintenance effort.
• High Reliability: Manufactured by Siemens, a global leader in industrial automation, this auxiliary switch guarantees high quality, durability, and long-term performance.
• Expandable Functionality: Ideal for adding extra control or signaling circuits to your 3RT2.1 contactors, such as status indication, interlocking, or sequence control.

Function

The Siemens 3RH2911-2DE11 auxiliary switch is used to extend the number of auxiliary contacts of a 3RT2.1 contactor. When the main contactor coil is energized, the auxiliary contacts on the 3RH2911-2DE11 change state simultaneously. The contacts on the left (terminals 41/42 and 53/54) are configured as 1 NC and 1 NO respectively, while the contacts on the right (terminals 23/24 and 31/32) are configured as 1 NO and 1 NC respectively. This enables the user to control or monitor different parts of a system based on the state of the main contactor. The spring-loaded terminals ensure a reliable and secure electrical connection, even in high-vibration environments.

Technical Specification

• Product Number: 3RH2911-2DE11
• Type: Lateral Auxiliary Switch
• Compatibility: For 3RT2.1 contactors
• Contact Configuration (Left): 1 NC (41/42) + 1 NO (53/54)
• Contact Configuration (Right): 1 NO (23/24) + 1 NC (31/32)
• Terminal Type: Spring-loaded terminal
• Solid-State Compatibility: Yes

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