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Siemens 3TK2040-6AC2 Miniature Contactor - 4 NO, 24V AC

Siemens 3TK2040-6AC2 Miniature Contactor, 4 NO, 24V AC

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ManufacturerSiemens

Part number3TK2040-6AC2

Contacts 4 NO

Termination Soldering Pin

Coil Voltage 24V AC

Mounting Screw (diagonal)

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4 normally open contacts Miniature size Soldering pin termination 24V AC coil Diagonal screw mounting capability

Product description

The Siemens 3TK2040-6AC2 is a miniature contactor featuring 4 normally open (NO) contacts. It is designed with soldering pin connections for PCB mounting and operates on a 24V AC coil voltage. This product is marked as phased-out, with the SIRIUS 3RT23/25 series being its successor. It is suitable for screw mounting diagonally.

This type of miniature contactor is typically used in compact control systems, electronic devices, and applications where space is limited and precise control of small loads is required. The soldering pin termination is ideal for direct integration onto circuit boards in automation and electronic control systems.

Stanlo Automation, a veteran-owned surplus parts provider, offers the Siemens 3TK2040-6AC2. We provide access to older and surplus components, ensuring you can maintain or complete projects even with phased-out parts. Rely on us for your industrial automation needs.

Technical specifications

Contacts	4 NO
Termination	Soldering Pin
Coil Voltage	24V AC
Mounting	Screw (diagonal)
Operation	AC
Series	3TK20

Common applications

Compact control systems

PCB mounting

Electronic control

Automation circuits

Small load switching

Compatible systems

Custom electronic control boards Compact automation modules Small-scale control circuits

Also known as

Siemens 3TK20406AC2 Siemens miniature relay 24V AC

Replaces / compatible with

This phased-out Siemens 3TK2040-6AC2 is succeeded by the SIRIUS 3RT23/25 series. It can be used as a direct replacement if available or in applications where its specifications are met by the new series.

Technical note

Expert tip

As this is a phased-out product, verify the availability of spare parts and support before integrating it into new, long-term projects.

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Frequently asked questions

What is the successor product for the Siemens 3TK2040-6AC2 miniature contactor?

The Siemens 3TK2040-6AC2 is a phased-out product. Its successor is the SIRIUS 3RT23/25 series, which offers updated technology and features while maintaining similar functionality for compact control applications.