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Siemens 3TH2040-0BB4 Contactor Relay - 40E, 4 NO, 24V DC

Siemens 3TH2040-0BB4 Contactor Relay with 4 NO contacts.

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ManufacturerSiemens

Part number3TH2040-0BB4

Manufacturer Siemens

Part Number 3TH2040-0BB4

Type Contactor Relay

Contacts 4 NO

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4 Normally Open (NO) Contacts 24V DC Operation EN 50011 Standard Screw Terminals Reliable DC Switching

Product description

The Siemens 3TH2040-0BB4 is a contactor relay designed for DC control circuits, featuring 4 normally open (NO) contacts and a 24V DC coil. It adheres to EN 50011 standards, making it a reliable component for switching and signaling in industrial automation.

This relay is suitable for applications requiring DC voltage actuation, such as in control panels, specialized machinery, and systems that operate on direct current. Its robust construction ensures longevity and consistent performance in demanding industrial settings.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TH2040-0BB4. We provide high-quality automation components and efficient service to keep your systems running optimally.

Technical specifications

Manufacturer	Siemens
Part Number	3TH2040-0BB4
Type	Contactor Relay
Contacts	4 NO
Coil Voltage	24V DC
Standard	EN 50011
Operation	DC

Common applications

DC Control Circuits

Signaling

Automation Systems

Industrial Control Panels

Motor Control

Compatible systems

Compatible with standard DC control system wiring and components.

Also known as

Siemens 3TH2040-0BB4 Contactor Siemens 24V DC Relay 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 contactor relay, designed for 24V DC operation, features screw terminals for secure and reliable connections in control circuits.

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Frequently asked questions

What is the coil voltage for the Siemens 3TH2040-0BB4 contactor relay?

The Siemens 3TH2040-0BB4 contactor relay is designed for DC operation and has a coil voltage of 24V DC.