EC: OTDC 400 A, 1000 Vdc UL98B Solar Switch

Power - Energy, power protection: The OTDC switch is used to make sure that an electrical circuit is completely de-energized for service or maintenance, and is specifically designed in accordance with UL98B for 400 A, 1,000 Vdc rated solar applications. This is a Control Engineering 2014 Engineers’ Choice finalist.

10/17/2013


Power - Energy, power protection: The OTDC switch is used to make sure that an electrical circuit is completely de-energized for service or maintenance, and is specifically designed in accordance with UL98B for 400 A, 1,000 Vdc rated solar applications. This is a Control Engineering 2014 Engineers’ Choice finalist.The new switch is specifically designed for photovoltaic (solar) applications, the first two pole disconnect, 400-A switch in the industry to achieve a 1,000 Vdc rating per UL 98B. This breakthrough in arc suppression technology delivers optimal performance with a new measure of simplicity and safety, occupying up to 50% less space while providing substantial energy savings and reduced wiring costs compared to switches currently available for solar applications. Previously, switches for photovoltaic applications required up to six poles wired in series in order to break 1,000 Vdc. Achieving the 1,000 Vdc rating with a compact, two pole configuration provides the ideal switch for the solar industry, designed for use in combiner-boxes for disconnecting individual arrays, and at the inverter input for disconnecting the inverter from the dc side. UL 98B covers enclosed and dead-front switches rated up to 1,000 Vdc, intended for use in dc photovoltaic (PV) systems.

The additional features of the new 1,000 Vdc switch family include:

 

  • Dual magnetic breaking capabilities: break both the positive and negative lines at the same time or utilize pre-configured versions with two poles wired in series to break just the positive or negative line.
  • Integrated heat sink: pre-configured versions with two poles wired in series utilize a custom-designed jumper with integrated heat sink, resulting in cooler operation and longer switch life.
  • Modular design: for the flexibility to use in diverse applications the new switch is available with the mechanism mounted between the poles or to either side of the poles. A special four pole version is available for double circuit applications, allowing the breaking of two separate PV strings with a single switch.
  • Visible blade technology: one of the only switches on the market with visible contacts, providing safe and reliable quick-make, quick-break operation.

www.abb.us/lowvoltage

www.abb.us/product/seitp329/25fd8b166ddc692fc1256e91002982dd.aspx

ABB Low Voltage Products



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