EI Core Lamination

CENTERSKY PROVIDES WORLD- CLASS QUALITY SILICON STEEL SHEET THAT’S DESIGNED FOR VERY SPECIFIC APPLICATIONS, FROM TRANSFORMER AND BALLAST RESISTOR TO HIGH- END APPLIANCES AND MORE.

EI Core Lamination

EI laminations are one of the most popular design types for manufacturing single phase transformers. The simple, single coil layout (sometimes referred to as a “shell type” transformer) offers a cost effective method for producing a wide variety of transformers. These range from small PCB mounted units through to much larger types that may be found in control panels or stand alone enclosures.

EI Core Lamination Features

EI-Core-Lamination-china — •Slight thickness difference between the horizontal and the longitudinal direction, promising the high lamination factor.

EI-Core-Lamination-3 — •Insulating Coating: Uniform color, good insulation, strong adhesive, high heat resistance, high putrescibility.

EI-Core-Lamination-4 — •Smooth surface, no rust, no rolling marks, no cold lap, no crease, no bubble cell, no delamination defects.

Scope

Control Transformer

Power Transformer

Ballast Resistor

UPS

Charger

•Marked “*” model is manufactured by manually punch

•Calculate core area using transformer specifications.
•Choose core size to fit winding and bobbin.
•Minimize air gap for higher magnetic flux density.
•Optimize core size for low core loss and reduced heat generation.
•Consider manufacturing limitations and cost when selecting core size.

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EI Core Lamination Table

Type	a	b	c	d	e	f	Holes	ø	Gap
EI-30	30	5	5	10	15
EI-35	35	5	7.5	10	19.5
EI-40	40	6.65	8	10.7	20.5	7	2(PH)
EI-41	41	6	8	13	21
EI-42	42	7	7	14	21		2	3.5	0.45
EI-48	48	8	8	16	24
EI-48	48	8	8	16	24				2.0
EI-48	48	8	8	16	24		2	3.5
EI-50	50	8	9	16	25.5
EI-57	57	9.5	9.5	19	28.5
EI-57	57	9.5	9.5	19	28.5		4(MH)	4
EI-60	60	10	10	20	30		4	5
EI-66	66	11	11	22	33
EI-66	66	11	11	22	33		4	4
EI-66	66	11	11	22	33		4	4	0.7/0.8/0.9
EI-67	67	9.45	13.05	22			4		0.7
EI-75	75	12.5	12.5	25	37.5		4	5
EI-76.2	76.2	12.7	12.7	25.4	38.1		4	5.5	fillet
EI-76.2	76.2	12.7	12.7	25.4	38.1		4	5	T=1.0 T=1.4
EI-78	78	13	13	26	39		4	5
EI-84	84	14	14	28	42		4	6
EI-85.8	85.8	14.3	14.3	28.6	42.9		4	5
EI-85.8	85.8	14.3	14.3	28.6	42.9		4	5	1.3/1.6/1.8/2.0/1.2/ 1.0/2.4/0.9/0.7
EI-95.25	95.25	15.875	15.875	31.75	47.625		4	5.5	fillet
EI-96	96	16	16	32	48		4	6
EI-96	96	16	16	32	48		4	6	1.0/1.4/2.5/2.7

Type	a	b	c	d	e	f	Holes	ø	Gap
EI-105	105	17.5	17.5	35	52.5		4	6
EI-105	105	17.5	17.5	35	52.5		4	6	1.0/1.4/1.6/2.0/2.2/2.8
EI-108	108	18	18	36	54		4	6
EI-114	114	19	19	38	57		4	7
EI-114	114	19	19	38	57		4	7	2.7
EI-120	120	20	20	40	60		4	7
EI-122	122	22	28	22	61	28	4	6
EI-126	126	21	21	42	63		4	7
EI-133.2	133.2	22.2	22.2	44.4	66.6		4	7
EI-133.2	133.2	22.2	22.2	44.4	66.6		4	7	1.3
EI-150	150	25	25	50	75		4	8
EI-152.4	152.4	25.4	25.4	50.8	76.2		4	8
EI-162	162	27	27	54	81		4	8
EI-162	162	27	27	54	81		4	10
EI-168	168	28	28	56	84		4	10
EI-171	171	28.5	28.5	57	85.5		4	8(PH) 10
EI-174*	174	29	29	58	87		4	10.5
EI-180	180	30	30	60	90		4	8
EI-180	180	30	30	60	90		4	10
EI-190.5	190.5	31.75	31.75	63.5	95.25		4	8
EI-192	192	32	32	64	96		4	10
EI-210	210	35	35	70	105		4	10
EI-222*	222	37	37	74	111		4	10
EI-228	228	38	38	76	114		4	10
EI-228(PH)*	228	38	38	76	76		4	9.5
EI-240	240	40	40	80	120		4	10
EI-254	254	48	55	48	164		4	12
EI-270*	270	45	45	90	135		4	12
EI-300	300	50	50	100	150		4	12
EI-360*	360	60	60	120	180		4	12
E70(NS)*	222	38	38	70	111		4	10
EI-28(NS)*	59	14	14	28	45		4	5
EI-56(NS)*	200	28	44	56	69		4	12
EI-60(NS)*	180	30	30	60	180		4	10
EI-150(NS)*	150	25	25	50	95		4	8
EI-60(NS)*	210	37.5	37.5	60	210		4	10
EI-162(NS)*	146.05	20.6	31.8	41.3	66.8		4	5.5
EI-251(NS)*	228.6	31.75	50.8	63.5	139.7		6	9.5

EI Core Lamination

EI Core Lamination

EI Core Lamination Features

Scope

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EI Core Lamination Table

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