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Siemens 3TH4394-0LC8 DC Contactor Relay: 33V DC, 5 NO + 5 NC

Siemens 3TH4394-0LC8 DC Contactor Relay: 33V DC, 5 NO + 5 NC, surge suppression.

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ManufacturerSiemens

Part number3TH4394-0LC8

Contacts 5 NO + 5 NC

Operation DC

Voltage 33V DC

Standard EN 50011

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33V DC Coil 5 Normally Open Contacts 5 Normally Closed Contacts Integrated Varistor EN 50011 Standard Screw Terminals

Product description

The Siemens 3TH4394-0LC8 is a DC operated contactor relay from the 55E series, conforming to EN 50011 standards. It features 5 Normally Open (NO) and 5 Normally Closed (NC) contacts, and operates with a 33V DC coil voltage. This unit includes an integrated varistor for surge suppression and screw terminals.

This DC contactor relay is suitable for specialized control applications requiring DC switching, such as in battery-powered systems, certain types of mobile equipment, or specific automation processes. The integrated surge suppression adds to its reliability.

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Technical specifications

Contacts	5 NO + 5 NC
Operation	DC
Voltage	33V DC
Standard	EN 50011
Features	Integrated varistor
Terminal Type	Screw terminal

Common applications

DC Control Systems

Battery Powered Equipment

Automation

Specialty Control

Industrial Switching

Compatible systems

DC control panels Battery-powered systems Specialized automation equipment

Also known as

Siemens 3TH4394-0LC8 DC Relay Contactor Relay 33V DC

Replaces / compatible with

This is a DC operated contactor relay that can replace other DC units with similar contact configurations and voltage ratings. Check for compatibility with specific control panel designs.

Technical note

Expert tip

The integrated varistor provides protection against voltage spikes common in DC circuits, making it suitable for applications where transient voltages are a concern.

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Frequently asked questions

Does the Siemens 3TH4394-0LC8 include surge protection?

Yes, the Siemens 3TH4394-0LC8 contactor relay features an integrated varistor for surge suppression, enhancing its durability in DC control applications.