Description
The M54125L is a semiconductor integrated circuit having the functions of an amplifier for use with high-speed ground-fault breakers.

FEATUREs
• Satisfies JIS C 8371
• Good temperature characteristic of the input sense current (VLKT = 9 mV)
• Internal neutral line open-phase (N open) detection function
• Few external components
• Good stability with respect to noise, surges
• Broad operating temperature range (Ta = –20 to 80°C)

APPLICATIONs
• High-speed ground-fault breakers