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Siemens 3TX7002-1AB02 Output Relay Coupler

Siemens 3TX7002-1AB02 phased-out output relay coupler, 1 NO, 24V AC/DC.

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ManufacturerSiemens

Part number3TX7002-1AB02

Type Output Coupling Link

Contacts 1 NO (Normally Open)

Contact Plating Hard Gold-Plated

Input Voltage 24 V AC/DC

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1 Normally Open contact Hard gold-plated contacts for low signal switching 24V AC/DC input Wide output voltage range Terminal shape for easy wiring Phased-out product

Product description

The Siemens 3TX7002-1AB02 is a phased-out output coupling link featuring one normally open (NO) contact with hard gold-plated surfaces for enhanced reliability. It operates with an input voltage of 24V AC/DC and an output range of 1-250V AC/DC. The unit is in a terminal shape for easy integration.

This relay coupler is ideal for applications requiring a robust interface between control signals and higher power loads, particularly where sensitive switching or low contact resistance is critical. Industries include process control, measurement, and automation.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, has the Siemens 3TX7002-1AB02. Contact us for this discontinued but essential component.

Technical specifications

Type	Output Coupling Link
Contacts	1 NO (Normally Open)
Contact Plating	Hard Gold-Plated
Input Voltage	24 V AC/DC
Output Voltage	1...250 V AC/DC
Form	Terminal shape

Common applications

PLC output expansion

Signal isolation

Low-level switching

Process automation

Control panel interfaces

Compatible systems

Control circuits requiring a 24V AC/DC input for switching loads up to 250V AC/DC with an NO contact

Also known as

Siemens 3TX7002-1AB02 relay

Replaces / compatible with

The preferred successor for the Siemens 3TX7002-1AB02 is the 3RQ2000-1BW00 or similar relays from the Siemens SIRIUS line, offering updated specifications and current availability.

Technical note

Expert tip

The hard gold-plated contacts on the 3TX7002-1AB02 make it suitable for switching very small signals or in environments prone to contact corrosion.

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Frequently asked questions

What is the contact type and plating of the Siemens 3TX7002-1AB02?

The Siemens 3TX7002-1AB02 features one Normally Open (NO) contact. These contacts are hard gold-plated to ensure reliable switching, especially for low-level signals and to prevent contact oxidation.