3TX7402-3R

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The Siemens 3TX7402-3R is a high-quality surge suppressor RC element designed to protect contactor coils from voltage spikes and electrical surges. Specifically made for contactors size S0 to S2, this industrial-grade suppression module operates efficiently within a voltage range of 24-48 V AC and 24-70 V DC. By preventing coil damage due to transient voltage spikes, it ensures prolonged operational life and enhanced reliability of automation systems. The Siemens 3TX7402-3R is a trusted component widely used in industrial automation environments where coil protection is essential for minimizing downtime and maintenance costs.

Key Features of Siemens 3TX7402-3R

  • Surge suppressor RC element with integrated cable spacer
  • Compatible with Siemens contactors in size range S0 to S2
  • Operating voltage: 24-48 V AC, 24-70 V DC
  • Protects contactor coils against voltage spikes and electrical surges
  • Enhances coil life and system reliability in industrial environments
  • Compact design allowing easy mounting to coil terminals
  • Factory-tested for industrial performance and safety
  • Reduces electromagnetic interference (EMI) generated by coil switching

Technical Specs of 3TX7402-3R

Review Siemens 3TX7402-3R specifications for detailed parameters.

Parameter Value
Nominal Operating Voltage (AC) 24-48 V
Nominal Operating Voltage (DC) 24-70 V
Compatible Contactor Sizes S0 to S2
Type Surge suppressor RC element with cable spacer

Applications / Use Case

This Siemens 3TX7402-3R is commonly used in industrial automation worldwide. It is ideal for protecting control panels and machinery from damage caused by transient voltage peaks during switching operations. The surge suppressor enhances the longevity and reliability of contactors in manufacturing lines, process control systems, and motion control setups, where stable coil operation is critical. This component is essential for anyone looking to maintain operational continuity and reduce maintenance frequency in automated environments.

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3TX7402-3R

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

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All products sold are New & Unused.

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All products are delivered within 2-8 business days depending on our stock location.

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