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Siemens 3TJ1001-0BB4 Contactor Relay 3NO+1NC

Siemens 3TJ1001-0BB4 Contactor Relay 3NO+1NC DC

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ManufacturerSiemens

Part number3TJ1001-0BB4

Part Number 3TJ1001-0BB4

Type Contactor Relay

Standards DIN EN50011

Auxiliary Contacts 3 NO + 1 NC

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3 Normally Open Contacts 1 Normally Closed Contact 24V DC Coil DIN EN50011 Compliant Screw Terminals Control Circuit Relay

Product description

The Siemens 3TJ1001-0BB4 is a contactor relay conforming to DIN EN50011 standards. It features 3 normally open (NO) auxiliary contacts and 1 normally closed (NC) auxiliary contact. This relay operates on a 24V DC coil voltage and is equipped with screw terminals for connection.

This contactor relay is suitable for control circuits and auxiliary functions in industrial automation, machine control, and electrical panel building. It is used for switching control signals or low-power loads where a combination of NO and NC contacts is required.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3TJ1001-0BB4. We are dedicated to supplying reliable automation components to keep your systems operational. Trust Stanlo for your Siemens contactor relay needs.

Technical specifications

Part Number	3TJ1001-0BB4
Type	Contactor Relay
Standards	DIN EN50011
Auxiliary Contacts	3 NO + 1 NC
Coil Voltage	24V DC
Terminals	Screw

Common applications

Control Panel Building

Machine Control Circuits

Auxiliary Switching

PLC Output Expansion

Automation Systems

Electrical Installation

Compatible systems

Used in control circuits with 24V DC power supply; compatible with standard industrial control panels and systems.

Also known as

Siemens Control Relay 3TJ1001 3TJ1001-0BB4 DC Relay 3NO 1NC Contactor

Replaces / compatible with

This contactor relay is designed to fulfill the function of auxiliary contact switching within control systems. It can replace similar relays with 3NO+1NC configuration and 24V DC coil voltage.

Technical note

Expert tip

Ensure the 24V DC coil voltage is applied correctly to the designated terminals for proper operation of the 3TJ1001-0BB4 relay.

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Frequently asked questions

What is the function of the NC contact in the Siemens 3TJ1001-0BB4 contactor relay?

The single normally closed (NC) contact in the Siemens 3TJ1001-0BB4 serves as a safety or interlock contact. It is closed when the relay is de-energized and opens when the coil is energized, commonly used for signaling stop conditions or interlocking other circuits.