
● Rated working voltage: AC 0.66 kV
● Power-frequency withstand voltage: 3000 V/1 min, 50 Hz
● Rated frequency: 50–60 Hz
● Primary current: 400–5000 A, depending on model and ratio
● Secondary current: 5 A or 1 A
● Measurement class: Class 0.5 or Class 0.2
● Protection class: 10P5 / 10P10 / 10P15 / 10P20
● Ambient temperature: -30°C to +70°C
● Altitude: ≤3000 m
● Installation environment: Indoor location without direct rain or snow, severe pollution or strong vibration
The AKH-0.66/MP series uses a flip-cover design with a transparent polycarbonate terminal cover for visible and convenient secondary wiring. Two windings are provided: one for measurement and one for protection. Its horizontal rectangular aperture can pass one to three busbars or multiple cables and is intended for electrical switchgear and low-voltage distribution protection systems.