Mr-28 Series Current Transformers

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Single
• Model NO.: MR-28
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Separated Winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: OEM
• Transport Package: 100PCS/CTN
• Specification: Int'l Standards
• Trademark: OEM
• Origin: Wenzhou
• HS Code: 8504311000
• Production Capacity: 1000PCS/Week

Product Description

MR Type is a range (6 standard silicon steel core material ) tape wrapping current transformer. It is low cost, which is widely used in Southeast Asian Countries. It can be used with or without foot and plastic cover. MR cover has two types, they are insulated tape and plastic cover.

Rated Freqency	50/60Hz
Rated Test Voltage	3KV AC (1min)
Rated short-time thermal current (Ith)	60In
Rated dynamic current (Idyn)	2.5Ith
Rated voltage (Um)	0.72KV AC
Continuous overload (Id)	1.2In
Operating temperature	-10ºC-50ºC
Housing self-extinguishing class	VO
Safety factor	FS 5
Secondary current	5A/1A

Features:
Primary current: 30A-5000A
Secondary currnet:5A,1A
Standard approval:BS7626,IEC185
Maximum voltage:0.72KV
Frequency:50-60KV
Rated load:5VA-15VA
Class:1.0, 3.0
Short-time thermal current:1th=60x1h
Rated security coefficient: FS<5
With or without base mounting.
With or without plastic terminal cover
Low cost

Standards: IEC61869-1, IEC61869-2

Model	Ratio (A)	Burden (VA)
		Class 0.5	Class 1.0
MR-28	50/5A	-	1.5
MR-28	60/5A	-	1.5
MR-28	75/5A	-	1.5
MR-28	100/5A	1.5	2.5

MR Series Specifications:
Class:0.5 1.0 3.0

Type	Current	ID(mm)	OD(mm)	TD(mm)
MR-28	30/5A-60/5A	28	70	40
MR-42	100/5A-250/5A	42	80	30
MR-45	300/5A	45	80	30
MR-60	400/5A	60	100	30
MR-60	400/5A 600/5A	60	100	30
MR-85	800/5A-1600/5	85	120	20
MR-125	2000/A-5000/5	125	165	20

Noted: For measuring currenttransformers, the accuracy class is designated by the highest permissible percentage current(ratio)
           error at the rated current perscribed for the ac curacy class concerned.