Page 12 - OTDC Switch

12 SWITCH-DISCONNECTORS OTDC AND OTDCP

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High performance

Pole design that enhances safety, reliability

and flexibility

Arc plates

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Long contact opening angle of 100 degrees – this Multiple arcing plates in the pole chamber create
stretches the electric arc at maximum and improves arc multiple jumping points in the electric arc
suppression

Knife and fixed contacts

Exhaust tube
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The contact design allows a high withstand capability – The long exhaust tubes prevent leakage of conductive
the higher the current, the more firmly the knife gasses caused by arc flash away from the pole
contacts are pushed against the fixed contacts

Magnets
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Dual Magnetic breaking – the pole chamber includes
magnets to optimize arc suppression at the end the arc
path