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Siemens 3TH4391-0BB4 Contactor Relay - 9 NO + 1 NC, 24V DC

Siemens 3TH4391-0BB4 DC Contactor Relay with 9 NO + 1 NC contacts.

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ManufacturerSiemens

Part number3TH4391-0BB4

Type Contactor Relay

Manufacturer Siemens

Part Number 3TH4391-0BB4

Contacts 9 NO + 1 NC

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9 Normally Open Contacts 1 Normally Closed Contact DC Operation Screw Terminals High Reliability EN 50011 Standard

Product description

The Siemens 3TH4391-0BB4 is a DC-operated contactor relay from the 3TH43 series. It is equipped with 9 normally open (NO) and 1 normally closed (NC) contacts, featuring screw terminals for easy installation. This relay is specifically designed for DC control circuits, operating at a voltage of 24 V DC.

This component is ideal for applications requiring DC switching, such as in specialized control systems, battery-powered equipment, or where DC power is readily available. It adheres to EN 50011 standards, ensuring compatibility and reliability in industrial automation settings.

Stanlo Automation, a veteran-owned business, offers the Siemens 3TH4391-0BB4 as part of our extensive surplus inventory. Secure your critical components with us and ensure the continuity of your operations.

Technical specifications

Type	Contactor Relay
Manufacturer	Siemens
Part Number	3TH4391-0BB4
Contacts	9 NO + 1 NC
Operation	DC
Coil Voltage	24V DC
Terminal Type	Screw
Standard	EN 50011

Common applications

DC Control Circuits

Battery Powered Systems

Specialized Automation

Industrial Control

Relay Logic

Signal Switching

Compatible systems

DC control panels Industrial machinery Automation systems Electrical cabinets

Also known as

Siemens 3TH4391 3TH4391 DC Contactor

Replaces / compatible with

This DC operated contactor relay is suitable for replacing or supplementing existing Siemens DC control components. Ensure compatibility with 24V DC control systems.

Technical note

Expert tip

Verify that the DC control voltage is stable and within the specified 24V DC range to prevent premature coil failure or erratic operation.

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Frequently asked questions

What type of operation does the Siemens 3TH4391-0BB4 contactor relay support?

The Siemens 3TH4391-0BB4 contactor relay is designed for DC operation. It functions with a 24 V DC coil voltage, making it suitable for DC control circuits.