Siemens SIRIUS 3RA2812-1DW10 Electronic Timing Relay, Off-Delayed, 0.05-100s, 24-240V AC/DC, Screw Terminal, Integrated Varistor Original Brand New

Overview

The Siemens SIRIUS 3RA2812-1DW10 is a high-performance electronic timing relay designed for a wide range of industrial automation applications. This off-delayed timing relay provides precise control over industrial processes, ensuring reliable and repeatable timing functions. Its compact design allows it to be conveniently snapped onto the front of Siemens SIRIUS 3RT201/3RT202 contactors and 3RH2 auxiliary contactors, saving valuable panel space and simplifying installation.

With a broad time range of 0.05 to 100 seconds and a flexible wide-range control supply voltage of 24-240 V AC/DC, the 3RA2812-1DW10 is a versatile solution for global use. The integrated varistor provides crucial protection by dampening the contactor coils, extending the lifespan of the relay and other connected components.

Key Features & Benefit

• Precise Off-Delayed Timing: Ensures accurate and reliable timing control with a configurable range from 0.05 to 100 seconds, ideal for delayed shutdown sequences and process control.
• Space-Saving Design: Snaps directly onto the front of Siemens SIRIUS 3RT201/3RT202 and 3RH2 contactors, eliminating the need for separate mounting and reducing wiring complexity.
• Integrated Varistor: The built-in varistor provides surge suppression for contactor coils, protecting the relay and prolonging the life of your equipment by absorbing voltage spikes.
• Wide-Range Power Supply: Operates on a flexible control supply voltage of 24-240 V AC/DC, simplifying inventory and making it suitable for diverse global applications.
• High-Reliability Semiconductor Output: The solid-state output provides fast switching speeds and a long operational life, making it suitable for applications with frequent switching cycles.
• Secure Screw Terminals: Features robust screw terminals for a reliable and secure electrical connection, ensuring long-term performance in demanding industrial environments.

Function

The Siemens 3RA2812-1DW10 functions as an off-delayed electronic timing relay. Upon receiving a control signal, the relay output is energized. When the control signal is removed, the timing function begins. The semiconductor output remains active for the set delay time (T) and then de-energizes. This functionality is crucial for applications that require a process to continue for a specific duration after the primary signal has been switched off, such as delayed fan shutdown, pump run-on, or post-process cooling.

Technical Specification

• Product Number: 3RA2812-1DW10
• Function: Electronic timing relay, Off-Delayed with control signal
• Time Range: 0.05 – 100 seconds
• Control Supply Voltage: 24 – 240 V AC/DC (50/60 Hz)
• Output Type: Semiconductor output
• Mounting: Can be snapped onto the front on contactors 3RT201 / 3RT202 and auxiliary contactors 3RH2
• Terminals: Screw terminals
• Special Features: Integrated varistor for attenuation of contactor coils
• Manufacturer: Siemens
• Series: SIRIUS

For more of our high-quality industrial automation products, please visit Turll.