Breakthrough dual magnetic breaking technology delivers optimal performance in an efficient, compact design.

ABB’s New DC Switches Image

Vaasa, Finland, November 5, 2014. ABB, the leading power and automation technology group, extends its range of OTDC switch disconnectors for DC applications up to 1,500 amperes (A). In addition to the unique two pole configuration for 1,000 voltage (V) DC, the OTDC portfolio includes now solutions for installations with the most special requirements such as 1,500 V DC voltages, multicircuit switching and combined load outputs above 800 A. Read the full press release here.


ABB offers a compact DC switch range that adapts to a wide variety of installation requirements: single, double and triple circuit applications, voltages up to 1500 V.

One switch, multiple benefits
For installations with more than one circuit, OTDC allows control of two or three circuits simultaneously, with only one switch instead of two or three separate ones.

High performance, compact solution
In some cases, the current levels in some of the largest main inverters may be higher than what OTDC range nominally covers. However, with the existing OTDC switches and ABB connection kits, it is possible to use a tested solution to create outputs of up to 1500 A (IEC) and 800 A (UL). These higher currents achieve up to 37% more compact space than corresponding products in the market.

Ready for the future
Nowadays, many systems reach up to 1000 V DC, but one of the trends in photovoltaic industry is the evolution towards higher voltages. ABB is ready to respond to the demands of the global market: OTDC is now available for 1500 V DC from 315 to 500 A (IEC) and from 250 to 400 A (UL).