At the same time, it meets the requirements of balanced characteristics, and the unbalanced current output is better than 30mA, 10mA, and 5mA. The product adopts high-quality high-conductivity magnetic core and advanced process technology, which can meet the technical requirements of different precisions such as 0.2, 0.5, and 1.0, and has high reliability. This series of products meet the requirements of GB 14287.2-2014 and GB 13955-2005.

Product Features

* Flexible output mode, socket or lead output;

* A variety of core hole diameter options, the hole diameter is from φ12mm to φ260mm;

* Casting with epoxy resin, good stability;

* Adopt high magnetic permeability nickel steel or nanocrystalline magnetic core, with good linearity and high sensitivity .

* Excellent balance characteristics, with strong anti-electromagnetic interference ability.

Scope of Application

Suitable for motor protection, electromagnetic relay protection device, microcomputer protection device; electrical

fire monitoring, fire leakage system, low current grounding system.

Electric Performance Parameters	Operating Temperature	-40℃～+70℃	Relative Humidity	≤90%
	Voltage Level	0.4/0.66/0.72kV	Linear Range	5%～120%
	Rated Input Current (AC)	10mA～5A	Working Frequency	45～1250Hz
	Rated Output (AC)	0～1V or 0～5mA	Medium Strength:	3000Vac/min
	Accuracy Class	0.5、1.0、2.0	Insulation Resistance	＞500 M Ohms/500Vdc
Mechanical Structure Parameters	Shell Material	PBT/PC Flame Retardant Grade 94- V0	Output Method	Socket or Shielded Sheathed Wire
	Iron Core Material	Nickel Steel or Ultra Microcrystalline	construction plan	Base installation bolts are fixed
	Sealing and Filling	Epoxy Resin	Environmental Requirements	Meet RoHS

Typical Value of Main Products

Model NO.

Input current rated Value AC

Rated Continuous Thermal Current

AC

Common Transformation Ratio

Accuracy Class

Secondary Load(Ohms

)

Dimensions（mm）

ApertureD

other size

TR21125B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤200

25

L-W-H-J-A1-A2

80-22-69.5-68-

5.2-8

TR21126B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

45

L-W-H-J-A1-A2

120-33-101.5-

98-5.2-8.5

TR21127B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

55

L-W-H-J-A1-A2

150-35-126-

126-5.2-12

TR2174B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

35

L-W-H-J-A1-A2

100-30-90-

83.5-5.2-9.5

TR21313B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

32

L-W-H-J-A1-A2

91-28-70-80-

5.5-7.5

TR21314B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

45

L-W-H-J-A1-A2

104-28-83-93-

5.5-7.5

TR21315B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

65

L-W-H-J-A1-A2

126-28-105-

115-5.5-7.5

TR21316B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

80

L-W-H-J-A1-A2

143-28-122-

132-5.5-7.5

TR21317B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

105

L-W-H-J-A1-A2

172-28-151-

161-5.5-7.5

TR21117B

10mA～5A

10A

1000:1

2000:1

0.2，0.5

≤500

72

L-W-H-J-A1-A2

175-42-150-

150-6.2-13

Outline Structure Diagram (Unit :mm）

Closed loop residual zero sequence current transformer

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