New Panasonic KW8M design has been adopted that is useful in preventing incorrect wiring during and after installation. Simple demand function is a function which presumes the average power for every 30 minutes time span,and judges for every minute. It supports only CT input (power measurement), not support pulse input. It outputs demand alarm according to the setting conditions. Alarm output and alarm display will be given when present demand or estimated demand is over demand setting value. You can set cancellation timing of demand alarm in demand alarm set mode. Using this mode, you can avoid frequent alarm output around demand target value. Current transformer(CT) with secondary side output 1A/5A can be connected directly. Even for high currents that exceed 400A on the primary side, a wide range of currents up to 4,000A can be measured using a secondary side 1A/5A CT.