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UT50

Technical Specifications

ParameterValue
Contact Configuration1 Form A (SPST-NO)
Contact Resistance≤2.0mΩ
Rated Load Voltage12-1000V DC
Rated Load Current50A DC
Max. Breaking Current500A 320V DC (1 operation or more)
Max. Switching Power37.5KW
Electrical Endurance50A 450V DC 1x10⁴ cycles
50A 750V DC 3x10³ cycles
Mechanical Endurance2×10⁵ cycles
Auxiliary ContactNone
Coil Voltage12/24/48V DC
Coil Resistance40/152/576Ω
Coil Power3.6/3.8/4.0W
Coil Lead TypeLead wire, standard 300mm / Lead wire with connector
Dielectric Strength (Open Contacts)2500V AC
Dielectric Strength (Coil-to-Contact)2500V AC
Insulation Resistance1000MΩ (1000V DC)
Vibration (Stability)10G (10-1000Hz)
Shock (Stability)20G
Shock (Strength)50G
WeightApprox. 100g
Dimensions51.7×36.3×46.6mm
Terminal Connection MethodM4×8 Internal thread


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  • Address: 4F, Building B1, Jinweiyuan Industrial Zone, Julongshan Area, Longtian Street, Pingshan District, Shenzhen, China
  • Tel: 0755-89221362
  • Mobile: 13544121572 (Mr. Wu)
  • Fax: 0755-89221362
  • Email: Wuyuzheng@unitone.com.cn
  • Website: www.unitone.com.cn

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