Kingnen KNPS304 Intelligent and Safe Power Monitoring Device

One circuit leakage current monitoring. Leakage current alarm range: 0.1–9.999A

Four-way temperature monitoring. Temperature alarm range: 45–140°C

Zero ground voltage monitoring. Zero ground voltage alarm range: 0.5–10V

One switch output (relay contact)

One circuit reclosing relay

Three-phase full power monitoring: voltage, current, frequency, power, power factor, electric energy

Voltage rating: 220/380V, overload 1.5 times

Current rating: 50/100/200A (external CT selectable)

Total harmonic distortion (THD) monitoring, 2nd–31st harmonic

128×64 dot-matrix LCD display

Operation, mute, alarm and fault indicators

Buzzer alarm

Rail-mounted installation

Working voltage: 85~264VAC, 110~375VDC

Measure accuracy

Current: 0.5%FS

Voltage: 0.5%FS

Power: 1S

Frequency: ±0.01Hz

Active energy: 1S

Reactive energy: 2S

Temperature: ±2°C

Leakage current: ±10mA

Neutral ground voltage: 0.5%FS