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Siemens 3TH Series Control Relay
Siemens 3TH Series Control Relay - Image 2
Siemens 3TH Series Control Relay - Image 3

Siemens 3TH Series Control Relay

Manufacturer: Siemens
Rated operating voltage: AC/DC 24V – 400V
Rated operating current: 5A – 10A
Working frequency: 50Hz / 60Hz (AC type)
Rated control voltage: 24V-48V AC/DC, 110V-400V AC

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Product Description

The Siemens 3TH Series Control Relay is a compact and reliable auxiliary device for industrial automation. It supports various contact combinations and control voltages from AC/DC 24V to 400V. With up to 10A contact current, it ensures stable performance in signal control and circuit expansion tasks. Designed for high durability, the series complies with CE, UL, and CCC standards and is easy to install on DIN rails.

Standard Features

 

  • Multiple contact configurations (e.g., 2NO+2NC, 3NO+1NC)

  • Wide control voltage range (AC/DC 24V–400V)

  • High contact capacity, up to 10A

  • Electrical life up to 1 million operations; mechanical life up to 30 million

  • Quick DIN rail mounting

  • Expandable with auxiliary contact modules

  • Clearly marked terminals for easy wiring

  • Compact design with high system compatibility

  • Certified by CE, UL, CCC, and more

  • Operates in wide temperature range (−25°C to +55°C)

Technical Specifications

Model Contact Combination Coil Voltage
3TH2031-0BB42NO+2NCAC 24V
3TH2031-0AP02NO+2NCDC 110V
3TH3031-0BB43NO+1NCAC 24V
3TH3031-0AK63NO+1NCAC 230V
3TH4040-0BB44NOAC 24V
3TH4040-0AK64NOAC 230V
3TH2244-0AP02NO+2NCDC 110V
3TH8031-0BB43NO+1NCAC 24V
3TH8031-0AK63NO+1NCAC 230V
3TH4244-0BB44NO+4NCAC 24V

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