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Siemens 3TH2022-0LB4 Contactor Relay - 24VDC

Siemens 3TH2022-0LB4 Contactor Relay with 2 NO + 2 NC contacts, 24 VDC.

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ManufacturerSiemens

Part number3TH2022-0LB4

Type Contactor Relay

Series 22E

Contacts 2 NO + 2 NC

Terminal Type Screw

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2 NO + 2 NC Contacts 24 VDC Coil Voltage Screw Terminals Integrated Varistor EN 50011 Compliant Auxiliary Relay Function

Product description

The Siemens Contactor Relay (3TH2022-0LB4) is a component from the 22E series, compliant with EN 50011 standards. It features 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, with screw terminals for easy connection. This relay is designed for DC operation at 24 VDC and includes a connected varistor for surge protection.

This contactor relay is suitable for control circuits in various industrial applications, such as motor control panels, automation systems, and machine tools, where reliable switching of auxiliary circuits is needed. It ensures the safe and efficient operation of control logic.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TH2022-0LB4. As this is a phased-out product, Stanlo provides a source for obtaining this specific component for existing systems. Note that the successor is the SIRIUS 3RH21 series.

Technical specifications

Type	Contactor Relay
Series	22E
Contacts	2 NO + 2 NC
Terminal Type	Screw
Voltage	24 VDC
Standard	EN 50011
Protection	Varistor

Common applications

Control Circuits

Motor Control Panels

Automation Systems

Machine Tools

Electrical Control Cabinets

Compatible systems

Siemens Control Systems 24 VDC Control Circuits EN 50011 Compatible Equipment

Also known as

Siemens 22E Contactor Relay 3TH2022 Relay Siemens Auxiliary Relay

Replaces / compatible with

This is a phased-out product. The successor is the SIRIUS 3RH21 series. Ensure compatibility before replacing.

Technical note

Expert tip

As this is a discontinued product, ensure you have appropriate documentation or a replacement strategy in place for future maintenance, as spare parts may become scarce.

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Frequently asked questions

What are the contact specifications and operating voltage for the Siemens 3TH2022-0LB4 contactor relay?

The Siemens 3TH2022-0LB4 contactor relay features 2 Normally Open (NO) and 2 Normally Closed (NC) contacts and operates with a 24 VDC coil voltage. It includes a connected varistor for surge protection.