Siemens 3RT2926-3AB31 Mechanical Latch, 24V AC/DC, for SIRIUS S0 Contactors Original Brand New

Overview: Siemens 3RT2926-3AB31 Mechanical Latch

The Siemens 3RT2926-3AB31 is a reliable mechanical latching block accessory designed specifically for the SIRIUS 3RT2 series S0 size power contactors ($3RT202$, $3RT232$, and $3RT252$). This essential component converts a standard contactor into a mechanically latched contactor, ensuring the contactor remains in the energized state even after the control power is removed or during a voltage drop (power failure). This feature is critical for applications where an uninterrupted, stable switching state is mandatory for safety or operational continuity. It is easily mounted to the front of the contactor via a clip-on mechanism and features a $24\text{ V AC/DC}$ control supply voltage.

Key Benefit

• Reliable Latching Function: Guarantees the contactor maintains its switching position without continuous control power, a crucial requirement for critical loads and safety circuits.
• Power Failure Immunity: The mechanical design prevents an unintentional change of state in the event of a voltage drop or power outage, increasing system safety and reliability.
• Versatile Control: Operates with a flexible $24\text{ V AC/DC}$ control voltage, simplifying integration into various low-voltage control circuits.
• Seamless Integration: Designed for perfect compatibility and easy clip-on mounting to the SIRIUS 3RT2 S0 contactors ($3RT202$, $3RT232$, $3RT252$).
• Durable SIRIUS Quality: Manufactured by Siemens, ensuring high quality, long service life, and adherence to international standards.

Application

The 3RT2926-3AB31 is primarily used in control panels and industrial automation systems for applications such as:

• Maintaining a circuit state during a power failure (emergency stop circuits, critical processes).
• Latching control circuits in machinery and plants.
• Energy-saving solutions by eliminating the need for continuous coil power once the contactor is latched.

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