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 .
