Bal Seal Engineering Introduces BalContact™ Springs for Medium– and High–Voltage Switchgear | Automation.com

Bal Seal Engineering Introduces BalContact™ Springs for Medium– and High–Voltage Switchgear

June 212005
Bal Seal Engineering Introduces BalContact™ Springs for Medium– and High–Voltage Switchgear
BalContact™ Springs — featuring a patented canted–coil spring design enabling near–constant contact force over a wide range of working deflection — offer excellent mechanical and electrical performance in medium– and high–voltage switchgear. A small coil size and high coil count make the springs suitable for compact designs, with spring lifetime rated at > 10,000 cycles. (BalContact™ Springs retain their resiliency long–term, while other electrical contacts, such as leaf springs, tend to "relax" over time.)

Able to withstand the harshest environments, BalContact™ Springs enable steady current transfer — even in applications where significant torquing, misalignment, vibration and/or shock are present. Spring design compensates for surface irregularities and permits wide mating tolerances, lowering production costs for spring end–users. In addition, in electrical contact applications, BalContact™ Springs serve as coupling rings. These allow plugs and sockets to be connected/disconnected and offer the option of a measurable holding and insertion force.

Operating parameters for BalContact™ Springs are as follows:

  • Disconnect force – 18 N
  • Current – 1800 A
  • Current pulse – 40 kA (3 sec.)
  • Contact resistance – R<0.01 mΩ
  • Plug diameter – 30 mm
  • Spring material – Silver-plated beryllium–copper

    BalContact™ Springs are designed for easy installation. They are available for stationary, sliding and rotary contact applications. For more information, please contact [email protected]; (949) 460–2100; www.balseal.com.


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