Sitras PRO - Siemens The Sitras® PRO combined DC protective unit and controller is used in the power supply for DC railways in mass transit and main-line systems up to 3,000 V DC It protects DC switchgear and contact line systems against critical operating
Sitras Pro en Sitras PRO DC protective unit and controller for DC traction power supply siemens com mobility Overview The Sitras PRO secondary protection device has to be integrated into the pro-tection concept of the entire DC traction power supply system
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