Siemens SIRIUS 3RT1926-2EC11 Solid-State Time-Delayed Auxiliary Switch, 0.05-1s ON Delay, 100-127V AC, for 3RT1 Contactors Original Brand New

Overview

The Siemens 3RT1926-2EC11 is a high-performance, solid-state time-delayed auxiliary switch block designed for seamless integration with SIRIUS 3RT1 power contactors. This crucial component provides reliable control circuit timing functions, easily snapping onto the front of the contactor.

Featuring an ON delay (delayed closing) function and a broad control voltage range of 100-127V AC, it ensures precise timing for automated processes and sequencing control. Its compact design and robust electrical performance make it an essential accessory for demanding industrial automation environments.

Benefit

• Precision Timing: Solid-state technology offers highly accurate and repeatable 0.05 to 1.0 second ON delay timing for critical control sequences.
• Space & Cost Efficiency: Integrates directly onto the contactor front, minimizing panel space and simplifying wiring compared to separate timing relays.
• Enhanced Contactor Functionality: Converts a standard 3RT1 contactor into a time-delayed switching device for flexible system design.
• High Reliability: Engineered as part of the trusted Siemens SIRIUS industrial control system for long mechanical and electrical service life.
• Easy Installation: Features a front-side, snap-on design for fast, tool-free mounting on compatible 3RT1 contactors.
• Industry Standard: Compliant with standards like IEC 60664 and ideal for global industrial applications.

Function and Application

The 3RT1926-2EC11 primarily performs an ON Delay switching function. When the control voltage (100-127V AC) is applied to the contactor coil, the auxiliary switch contacts will only change state (NO closes, NC opens) after the set time delay (0.05…1s) has elapsed.

Application

• Sequencing control in motor starter circuits.
• Delayed interlocking of auxiliary circuits.
• Control panel applications requiring precise time-delayed signaling.
• Integration into complex automation and machine control systems using Siemens 3RT1 contactors.

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