Siemens 3RA2815-2FW10 Solid-State Time-Delayed Auxiliary Switch, Off-Delayed Relay 24–240V AC/DC Original Brand New

Overview

The Siemens 3RA2815-2FW10 is a solid-state time-delayed auxiliary switch designed for precision control in industrial automation systems. Offering off-delay functionality without requiring an external control signal, this device delivers reliable switching and timing performance for various automation and motor control applications. Its robust design and compatibility with Siemens contactors ensure long-lasting durability and seamless integration into your control panels.

Key Features

• Type: Solid-state, off-delayed auxiliary switch (without control signal)

• Relay Contacts: 1 Normally Closed (NC) + 1 Normally Open (NO)

• Timing Range: Adjustable from 0.05 to 100 seconds

• Operating Voltage: 24–240 V AC/DC (50/60 Hz)

• Integrated Varistor: Protects against voltage surges and contactor coil interference

• Connection Type: Spring-loaded terminals for secure wiring

• Mounting: Easily snaps onto Siemens 3RT20 contactors and 3RH2 contactor relays

Benefits

• Easy Installation: Quick snap-on design reduces setup time.

• Reliable Switching: Solid-state technology ensures high precision and long life.

• Wide Voltage Range: Flexible operation across AC/DC supply systems.

• Integrated Protection: Built-in varistor minimizes electrical noise and extends component life.

• Space-Saving Design: Compact and efficient for modern control cabinets.

Function

The Siemens 3RA2815-2FW10 provides off-delay timing after de-energization of the main contactor coil. The built-in solid-state timing circuit ensures accurate delay periods between 0.05–100 seconds, enhancing process safety and control accuracy in automation environments. Ideal for use in motor control centers, process automation, and machine control applications.

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