Performance characteristics of microamp-level open-and-close leakage current transformer series products：
1. The open-and-close structure does not require power failure and does not need to disconnect the line under test. The installation is fast, safe and reliable, especially suitable for online installation.
2. It adopts permalloy iron core and double-layer shielding technology, with stable performance and high accuracy, super anti-interference ability, and is suitable for complex interference environments.
3. The firewire and zero wire can be clamped together at the same time to measure the leakage current of cables and electrical equipment.
4. The range, turn ratio, output interface, etc. of the transformer can be customized according to customer requirements.
5. Output interface: 2-core shielded wire or 3P plug-in terminal.
6. Safety level: CATⅢ600V. 
7. Working temperature: -15°C～50°C 

Product Model	Product Picture	Measurement Parameters	Reference Load	Clamp Jaw Size	Dimensions	Weight
EM022KU		Range: 0.000mA～10A Accuracy level: 0.5 Phase error: ≤1° Variable ratio: 1000:1 Working frequency: 10Hz～100kHz	0～100mA≤300Ω 0～1A≤30Ω 0～10A≤3Ω	Ф22mm	96mm×94mm×34mm	480g
EM045KU		Range: 0.000mA～10A  Accuracy level: 0.5  phase error: ≤1°  Variable ratio: 1000:1  Operating frequency: 10Hz～100kHz	0～100mA≤300Ω 0～1A≤30Ω 0～10A≤3Ω	Ф45mm	118mm×116mm×34mm	830g
EM080KU		Range: 0.000mA～10A Accuracy level: 0.5 Phase error: ≤1° Variable ratio: 1000:1 Working frequency: 10Hz～100kHz	0～100mA≤300Ω 0～1A≤30Ω 0～10A≤3Ω	80mm×20mm	165mm×88mm×34mm	820g
EM090KU		Range: 0.000mA～10A Accuracy level: 0.5 Phase error: ≤1° Variable ratio: 1000:1 Working frequency: 10Hz～100kHz	0～100mA≤300Ω 0～1A≤30Ω 0～10A≤3Ω	Ф90mm	179mm×171mm×31mm	1350g