3TX7402-3S

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The Siemens 3TX7402-3S is a high-quality surge suppressor designed to enhance the reliability and longevity of electrical systems. This component is equipped with an RC element and a cable spacer, making it suitable for use with contactors of sizes S0 to S2, including models 3TF40 to 45, 3TF3, 3TH3, 3TH4, and 3TC44. It operates efficiently across a wide range of voltages, supporting 48-127 V AC and 70-150 V DC, and is compatible with both AC and DC control supply voltages. The surge suppressor is engineered to function optimally within a frequency range of 50 to 60 Hz. It is built to withstand varying environmental conditions, with an operational temperature range from -25°C to +55°C and a storage temperature range from -40°C to +80°C. Certified for CE, UL, and CSA standards, the Siemens 3TX7402-3S ensures compliance with international safety and performance regulations, making it a reliable choice for industrial applications.
Specification Description
Product Designation Surge Suppressor
Design RC Element with Cable Spacer
Voltage Type AC/DC
Control Supply Voltage (DC) 70 - 150 V
Control Supply Voltage (AC) 48 - 127 V at 50 Hz / 48 - 127 V at 60 Hz
Frequency 50 Hz / 60 Hz
Mounting For Coil Terminal of Contactors Size S0-S2
Compatible Contactors 3TF40 ... 45, 3TF3, 3TH3, 3TH4, 3TC44
Ambient Temperature (Operation) -25°C to +55°C
Ambient Temperature (Storage) -40°C to +80°C
Certificates/Approvals CE, UL, CSA
General Product Approval Declaration of Conformity
Application The Siemens 3TX7402-3S is designed to protect electrical circuits by suppressing voltage spikes, ensuring the longevity and reliability of contactors.

What is the primary function of this part?

This part is a surge suppressor designed to protect electrical circuits by limiting voltage spikes.

What type of voltage does this surge suppressor support?

The surge suppressor supports both AC and DC voltage types.

What is the range of control supply voltage for AC?

For AC, the control supply voltage ranges from 48 to 127 volts.

What is the range of control supply voltage for DC?

For DC, the control supply voltage ranges from 70 to 150 volts.

What are the ambient temperature conditions for operation?

The surge suppressor can operate in ambient temperatures ranging from -25 to +55 degrees Celsius.

What are the ambient temperature conditions for storage?

The surge suppressor can be stored in temperatures ranging from -40 to +80 degrees Celsius.

What is the design of this surge suppressor?

The surge suppressor is designed with RC elements.

What sizes of contactors is this part compatible with?

This part is compatible with contactors size S0-S2, including models 3TF40 to 45, 3TF3, 3TH3, 3TH4, and 3TC44.

What certifications does this part have?

The part is certified with CE, UL, and CSA approvals.

What is the frequency range for the control supply voltage?

The control supply voltage frequency is rated at 50 Hz and 60 Hz.

  • Used in industrial automation systems to protect contactor coils from voltage spikes.
  • Suitable for use in control panels to enhance the reliability of electrical circuits.
  • Commonly integrated into machinery to ensure smooth operation by reducing electrical noise.
  • Employed in manufacturing environments to safeguard sensitive equipment from transient voltages.
  • Utilized in electrical installations to prolong the lifespan of contactor components.
  • Ideal for applications requiring suppression of electromagnetic interference in control circuits.
  • Applied in various sectors such as automotive, manufacturing, and process industries for improved electrical performance.

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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