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Springs are suited for medium- and high-voltage switchgear.

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Springs are suited for medium- and high-voltage switchgear.
Springs are suited for medium- and high-voltage switchgear.
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July 14, 2005 - Rated for current to 1,800 A, BalContact(TM) Springs utilize canted-coil spring design that enables near-constant contact force over working deflection range. Spring lifetime is rated at over 10,000 cycles, and products are constructed to withstand harsh environments. They enable steady current transfer, even in applications where torquing, misalignment, vibration, and shock are present. In electrical contact applications, products can serve as coupling rings.

BalContact(TM) Springs for Medium- and High-Voltage Switchgear

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Bal Seal Engineering, Inc.
19650 Pauling
Foothill Ranch, CA, 92610 2610

Press release date: July 7, 2005

BalContact(TM) 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(TM) 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(TM) 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(TM) 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(TM) Springs are as follows:

Disconnect force - 18 N

Current - 1800 A

Current pulse - 40 kA (3 sec.)

Contact resistance - R<0.01 mohm

Plug diameter - 30 mm

Spring material - Silver-plated beryllium-copper

BalContact(TM) Springs are designed for easy installation. They are available for stationary, sliding and rotary contact applications. For more information, please contact; (949) 460-2100;

(See for specific details on BalContact(TM) Springs.)

About Bal Seal Engineering

Bal Seal Engineering provides customers worldwide with innovative solutions that incorporate material science and canted-coil spring technology. The industry leader, Bal Seal has been defined by invention, innovation and vision since its founding in 1958.

Today, after nearly 50 years of groundbreaking achievement and more than 120 active patents, Bal Seal Engineering designs, manufactures and supplies leading-edge, customized products for applications that include sealing, current transfer and grounding, EMI shielding, and mechanical holding, latching and loading.
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