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Siemens 3TH2040-0BA4 Contactor Relay - 40E, 4 NO, DC Operation

Siemens 3TH2040-0BA4 Contactor Relay with 4 NO contacts.

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ManufacturerSiemens

Part number3TH2040-0BA4

Manufacturer Siemens

Part Number 3TH2040-0BA4

Type Contactor Relay

Contacts 4 NO

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4 Normally Open (NO) Contacts DC Operation EN 50011 Standard Screw Terminals Reliable DC Switching

Product description

The Siemens 3TH2040-0BA4 is a contactor relay designed for DC control circuits. It features 4 normally open (NO) contacts and operates with a 12V DC coil voltage. Conforming to EN 50011 standards, this relay is built for reliable switching and signaling in various industrial applications.

This DC-operated contactor relay is suitable for applications where DC power is prevalent, such as in battery-powered systems, specialized control panels, or specific machinery requiring DC voltage actuation. Its robust construction ensures durability and consistent performance.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TH2040-0BA4. We are committed to providing quality automation components and excellent customer service. Partner with us for your industrial automation needs.

Technical specifications

Manufacturer	Siemens
Part Number	3TH2040-0BA4
Type	Contactor Relay
Contacts	4 NO
Coil Voltage	12V DC
Standard	EN 50011
Operation	DC

Common applications

DC Control Circuits

Signaling Applications

Automation Systems

Industrial Control Panels

Battery-Powered Equipment

Compatible systems

Designed for use within DC control systems and compatible with standard electrical wiring practices.

Also known as

Siemens 3TH2040-0BA4 Contactor Siemens Relay 3TH2040-0BA4 40E DC Contactor Relay

Replaces / compatible with

This is a phased-out product. The successor is the Siemens SIRIUS 3RH21 series.

Technical note

Expert tip

This phased-out DC contactor relay features screw terminals, ensuring a secure connection for control circuit applications.

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Frequently asked questions

What type of operation does the Siemens 3TH2040-0BA4 contactor relay support?

The Siemens 3TH2040-0BA4 contactor relay supports DC operation with a coil voltage of 12V DC.