Low Frequency Transformer Step Down Transformer Ei Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, UPS
• Phase: Single
• Model NO.: EI Series
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Power Transformer
• Frequency Characteristics: Low Frequency
• Shape of Core: EI
• Brand: Okerda
• Input Voltage: 220V/110V or Customized
• Output Voltage: Custom Designed
• Frequency: 50/60Hz
• Power: 2.5W~80W
• Transport Package: Carton on Pallet
• Specification: EI41/EI48/EI57/EI66/EI86
• Trademark: OEM
• Origin: China
• HS Code: 8504319000
• Production Capacity: 1000000PCS/Month

Product Description

Low Frequency Transformer Step Down Transformer EI transformer

Basic Data: 

• Input voltage: 100/120/220/230/240V (+/- 10%)
• Output power: 0.5VA - 140VA
• Frequency: 50/60Hz
• Complies with: UL/CSA/European/CQC standards
• Audio equipment, small/medium/large home electric appliances
• Insulation grade: Class A, Class B, Class F
• various types are avaiable

Model Number	Power (VA)	Adjusting Rate(%)	Efficiency(%)	Exterior and Installing Dimension(mm)					Weight(kg)
				A	B	C	D	E
EI 28×12	0.5	30	71	30	31	27	40	-	0.068
EI 35×15	1.5	25	75	37	35	32	44	-	0.110
EI 41×16	3	20	78	43	42	35	54	-	0.165
EI 41×20	4	20	78	43	38	36	55	-	0.476
EI 48×24	8	18	80	50	42	42	60	-	0.588
EI 48×30	20	17.1	80.5	50	52	42	60	-	0.68
EI 57×24	22	17	80.8	59	47	50	72	-	0.69
EI 57×30	25	16.8	81.2	59	52	50	72	-	0.72
EI 57×37	35	16	82	59	62	50	72	-	0.887
EI 66×28	25	15.8	83	68	53	60	55	-	0.987
EI 66×36	37	15.8	84	68	65	60	55	-	1.586
EI 66×45	50	13	85.1	68	75	60	55	-	1.35
EI 76×33	60	12.9	85.5	78	56	68	65	-	1.3
EI 76×45	80	11.1	86	78	78	68	65	-	1.768
EI 76×65	140	11	86	78	94	68	65	-	1.976

Features: 
1) High efficiency, good silicon sheet & copper wire 
2) Low heat generation
3) 3 frames or full isolation bobbin
4) The cores are lapped by silicon steel sheet and treated by insulation 
5) Clean appearance and convenient installation
6) Reasonable and favorable price.

Application: 
This single-phase transformer is widely applied to the little power of DVD, hi-fi stereo, TV, small adaptor, beauty equipment, instruments and Apparatuses equipment, stage light, lighting control circuit, air-conditioning equipment control circuit, medical equipment, monitoring equipment, automation equipment control circuit, machinery and equipment, energy-efficient equipment, etc. 

Testing Items:
No-load Test(No-load Current, No-load Voltage, No-load Loss)
Load Test (Load Voltage, Temperature-rise)
Inductive Voltage Test, DC Resistance Test, Safety Test

Operating environment:
1) Temperature: The ambient temperature can not over +40°C.
2) Altitude: Mounting location can not exceed the altitude of 2000m
3) Relative humidity: Maximum 90%
4) The site not attack by rain and snow
5) The medium which no explosion danger, no corroding metal, no electrical breakdown

Q1: What's your MOQ?
A2:Our usual MOQ is 1000pcs.

Q2. Can I place a sample order?
A2: Yes, welcome sample orders.

Q3: What's the delivery time for samples?
A3: Usually 4-7 working days.

Q4: What's the lead time for mass production?
A4: About 20 working days, based on your order quantity.

Q5: Which payment methods are acceptable to you?
A5: T/T, L/C, Western Union, Paypal etc.

Q6: Can you make customized products?
A6: Yes, of course. We will do as per customer's design.

Q7: Is OEM accepted?
A7: Yes, welcome OEM project.

Q8: Is it ok to print my logo on the label?
A8: No problem, we can make it exactly as per your requirements.