SIERRA Electrical & Power Solutions (Indonesia) is part of Kotohira System (株式 会社ことひら システム), one of the oldest industrial grade power supply manufacturers in Japan since 1993. Currently we are expanding in Southeast Asia market particularly in Indonesia under the registered name SIERRA.
Kotohira System (株式会社ことひら システム) is one of the oldest industrial grade power supply manufacturers in Japan. We distribute and install AC/DC UPS, batteries for an enormous number of industry and business all over the country and oversea. Besides, we are capable to provide AC power supply from 400VA to 600KVA standalone with specific voltage for input and output in order to reach all customers demand.
Since 1993, we have our products constantly installed in Japan railway, nuclear power plant, telecommunication system, air transportation, etc. Until now, we also enabled to provide OEM to battery suppliers all over Japan whether domestic usage or exportation. As a fact of business’s growth, we are now moving our plant and service office into other significant areas, in order to be more internationally and productively response to customers fulfillment.