3RT1926-2FL21

Description

Overview

The Siemens SIRIUS 3RT1926-2FL21 is a high-performance, solid-state time-delayed auxiliary switch block designed for seamless front-side mounting onto the SIRIUS 3RT1 contactor series (Sizes S0 up to S12). This essential industrial control component provides reliable OFF-delay timing functionality, crucial for controlled shutdown or sequencing in automated systems. With a versatile operating voltage of 200-240V AC/DC and an adjustable time range of 0.5 to 10 seconds, it offers precision and flexibility for various applications. It features a robust contact configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) contact, ensuring dependable switching operations.

Key Benefit

• Reliable Timing Control: Guarantees precise OFF-delay for automation circuits.

• Durable & Efficient: Solid-state design ensures longevity and reduces mechanical wear.

• Easy Installation: Front-side mounting makes replacement and setup quick.

• High Compatibility: Optimized for Siemens 3RT1 contactors.

• Energy Efficient: Operates efficiently across AC and DC power systems.

Function

• Provides delayed OFF signal for 3RT1 contactors

• Ensures controlled switching of electrical circuits

• Enhances protection for downstream equipment by avoiding abrupt switching

• Supports automation systems in industrial and manufacturing settings

Application

This auxiliary switch block is ideal for controlling processes where a time delay is required after the main contactor is de-energized. Typical applications include:

• Delaying the shutdown of cooling fans or pumps.
• Ensuring a minimum overlap in sequential motor starting.
• Actuating signaling devices after a predefined delay following main circuit interruption.

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