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SIEMENS 3TX7402-3T RC Element Surge Suppressor, 127-240V AC / 150-250V DC, for SIRIUS Contactors

SIEMENS 3TX7402-3T RC Element Surge Suppressor, 127-240V AC / 150-250V DC, for SIRIUS Contactors
SIEMENS 3TX7402-3T RC Element Surge Suppressor, 127-240V AC / 150-250V DC, for SIRIUS Contactors
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R734
+R2 Reward
In industrial control panels, contactor coils generate voltage spikes when switched off. The SIEMENS 3TX7402-3T RC element absorbs these spikes, protecting sensitive electronics and extending contact life. It plugs directly into SIRIUS contactors from the 3RT2, 3RT1, 3RH2, and 3RH1 series.Key specif... Read More
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Stock 4 Code 3505646 Brand SIEMENS Model 3TX7402-3T Warranty 2 Years

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In industrial control panels, contactor coils generate voltage spikes when switched off. The SIEMENS 3TX7402-3T RC element absorbs these spikes, protecting sensitive electronics and extending contact life. It plugs directly into SIRIUS contactors from the 3RT2, 3RT1, 3RH2, and 3RH1 series.

Key specifications

  • Suppressor type: RC element (snubber)
  • Rated operating voltage: 127-240 V AC, 150-250 V DC
  • Function: surge damping / voltage peak suppression
  • Compatibility: Siemens SIRIUS contactors (3RT2, 3RT1, 3RH2, 3RH1)
  • Mounting: plug-in
  • Circuit configuration: resistor-capacitor (RC)
  • Application: protection of inductive loads (e.g., contactor coils)
  • Ambient operating temperature: -25 to +60 °C
  • Storage temperature: -40 to +80 °C
  • Degree of protection: IP20 when mounted
  • Standards: IEC 60947
  • Product series: Siemens SIRIUS

Why choose it

This suppressor reduces electromagnetic interference and prevents voltage peaks that can damage control equipment. Its compact plug-in design allows quick installation without additional wiring.

Ideal use cases

  • Protecting contactor coils in motor control circuits
  • Reducing EMI in automation panels
  • Extending the life of switching devices

Good to know

The RC element is designed for use with Siemens SIRIUS contactors and meets IEC 60947 standards. It operates reliably in a wide temperature range, making it suitable for various industrial environments.

Specifications
Applicability
Siemens SIRIUS contactors (3RT2, 3RT1, 3RH2, 3RH1)
Brand
SIEMENS
Category
Surge Arrester Module
Compliance certificates
IEC 60947
EAN
4011209055483
Model
3TX7402-3T
MPN
3TX7402-3T
Nominal input voltage
127-240 V AC / 150-250 V DC
Product type
Surge Arrester Module
Storage temperature (T-T)
-40 - 80 °C
Weight
1 kg
Price history over the last 6 months
SIEMENS 3TX7402-3T RC Element Surge Suppressor, 127-240V AC / 150-250V DC, for SIRIUS Contactors
Current
R734
Lowest
R723
Highest
R734
Change 24H
+R12   +2%
Week
—   
Month
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