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Siemens 3TH3040-0B Contactor Relay - 4 NO Contacts, AC 230/220V

Siemens 3TH3040-0B Contactor Relay with 4 N/O contacts.

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ManufacturerSiemens

Part number3TH3040-0B

Contacts 4 NO

Coil Voltage AC 230V 50Hz / AC 220V 60Hz

Terminals Screw

Standards EN 50 011

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4 Normally Open Contacts AC Coil Screw Terminals EN 50 011 Compliant Industrial Grade

Product description

The Siemens 3TH3040-0B is a standard contactor relay featuring 4 normally open (N/O) auxiliary contacts. It is designed for AC operation with a coil voltage of 230V at 50Hz or 220V at 60Hz. This model utilizes screw terminals for secure and straightforward wiring, adhering to EN 50 011 specifications.

This relay finds common applications in control circuits for various industrial settings, including motor starters, lighting controls, and automation systems. Its versatility makes it suitable for a wide range of electrical control tasks.

Stanlo Automation, a proud veteran-owned business, provides this Siemens 3TH3040-0B surplus part. We offer competitive pricing and efficient service to meet your industrial automation component needs.

Technical specifications

Contacts	4 NO
Coil Voltage	AC 230V 50Hz / AC 220V 60Hz
Terminals	Screw
Standards	EN 50 011

Common applications

Motor Control

Lighting Control

Automation Panels

HVAC Systems

General Control

Compatible systems

Control circuits Automation systems

Also known as

Siemens 3TH3040-0B Relay

Replaces / compatible with

This part is a Siemens 3TH3040-0B auxiliary contactor relay.

Technical note

Expert tip

Verify the incoming AC voltage matches the 230V/220V rating before energizing the coil.

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Frequently asked questions

What is the coil voltage for the Siemens 3TH3040-0B contactor relay?

The Siemens 3TH3040-0B contactor relay operates with a coil voltage of 230V AC at 50Hz or 220V AC at 60Hz.