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φ12mm DC immune current transformer 2500:1 120A

Application and Features:
1. for electronic energy meters, single-phase and three-phase meters
2.The iron core is made of high quality ferrous amorphous alloy and nanocrystalline alloy material,
and the secondary wire is made of high strength electromagnetic enameled wire, fully epoxy resin seal, with high precision and good linearity.
3.The cases adopts imported flame retardant PBT material with good mechanical and electrical strength.
4.Small size, light weight, easy to install.
3. precision power meter
4. Low cost, small size, high accuracy, PCB mounting pattern
5. fully ROHS compliant , CE approved

Model: ZMDCT21
Brand: ZEMING
Code: 8504311000
PDF: 100A DC immune CT--ZMDCT21.pdf


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Specification

Characteristics	Values
Operating frequency	50 Hz ~ 400 Hz
Operating temperature	-40℃ ~ 85℃
Relative humidity	≤95%
Rated primary current Ip	100A
Maximum primary operating current Imax	120A
Testing current for DC component 120A/Root 2	＜3%
Rated second current	40mA
Transformation ratio	2500:1
User supplied burden resistor	10Ω
HI-POT (center OD hold to leadwire)	3000Vrms, 1min.
Insulation resistance	>500MΩ/500Vdc
Accuracy class	0.1class

Accuracy class	With the percentage(%)of Ip
Accuracy class	5	20	100	120
Ratio Error (±%)	0.4	0.2	0.1	0.1
Phase Displacement(±ˊ)	15	8	5	5

Dimension

Electrical schematic

Current direction:

“*” Means same polarity

Primary current is from K to L, secondary current is from white wire to black wire

Material List

No.	Material	Spec. model	UL code	Manufacturer
1	Inner core	Nano-crystalline core	/	ZEMING
2	Outer core	Amorphous core	/	ZEMING
3	Core shell	PBT	E238981	QINGDAO QINKE ENGINEE RING PLASTICS CO LTD
4	Winding	0.13mm, 2500T	E258243	ELEKTRISOLA HANGZHOU CO LTD
5	Epoxy resin	TXH-9201-10 epoxy resin in sulating compound	E196959	TIANJIN XINQIAO INSULATI NG MATERIAL CO LTD
6	Leading wire	UL1007, 26AWG, Black&White	E315651	ZHEJIANG CHENGBAO WIR E & CABLE CO LTD
7	Case	Black	E238981	QINGDAO QINKE ENGINEE RING PLASTICS CO LTD
8	Connector	Molex 5264-2P	/	Shenzhen Pinshang Electronic
9	Tape	Flame retardant, Environmental protection	E165111	JINGJIANG YAHUA PRESSURE SENSITIVE GLUE CO LTD