DESCRIPTION
The M54125 is a semiconductor integrated circuit consisting of an amplifier for high-speed earth leakage circuit breaker.

FEATURES
● Satisfies JIS C 8371
● Temperature-stable input current trigger threshold (VLKT = 9mV)
● Capable of detecting a lost phase on the neutral line
● Economical, low external component count
● Highly resistant to noise and power surges
● Wide operating temperature range (Ta = -20 – +80°C)

APPLICATION
  High-speed earth-leakage circuit breakers