Siemens 3RH2921-2DE11 Auxiliary Switch, Solid-State Compatible, 1 NO + 1 NC, Lateral, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RH2921-2DE11 is a high-performance, lateral auxiliary switch block designed specifically for seamless integration with 3RT2 power contactors and 3RH2 contactor relays. Engineered for reliable signaling and control in demanding industrial environments, this switch features a dual contact configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) on both the left and right sides.

It utilizes modern spring-loaded terminals for fast, vibration-proof, and maintenance-free wiring, significantly reducing installation time and increasing system reliability. Crucially, the unit is solid-state compatible, ensuring flawless integration with PLC inputs and modern control circuits.

Key Features & Function

• Type: Lateral auxiliary switch

• Contact Configuration: 1 NO + 1 NC

• Left Side Terminals: 51/52, 63/64 (current path: 1 NC, 1 NO)

• Right Side Terminals: 33/34, 41/42 (current path: 1 NO, 1 NC)

• Compatibility: Siemens 3RT2 contactors & 3RH2 contactor relays

• Terminal Type: Spring-loaded for secure and reliable connections

• Solid-State Compatible: Optimized for modern electrical installations

Benefit

• Ensures reliable switching in industrial automation setups.

• Easy installation with lateral design and spring-loaded terminals.

• Compatible with modern solid-state control systems, enhancing durability.

• Reduces downtime due to robust construction and reliable contacts.

• Perfect for both AC and DC circuits, supporting versatile applications.

Technical Specification

• Model Number: 3RH2921-2DE11

• Configuration: 1 NO + 1 NC

• Mounting Position: Lateral

• Left Side Current Path: 1 NC, 1 NO

• Right Side Current Path: 1 NO, 1 NC

• Terminal Type: Spring-loaded

• Compatible Devices: 3RT2 Contactors, 3RH2 Contactor Relays

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