EI 70VA-3KVA Transformer

About the EI 70VA-3KVA Transformer

The EI 70VA-3KVA Transformer is part of the ELEHPD Power Transformer range. Technique parameter Iron core specification Power External size a b c d e EI-66 30VA 66 30 59 57 64 EI-76 40VA 76 33 64 64 67 50VA 76 35 64 64 69 70VA 76 42 64 64 76 EI-86 100VA 86 45 71 73 75 120VA 86 50 71 72 93 EI-96 150VA 96 49 80 80 85 EI-105 200VA 105 51 87 87 88 EI-114 300VA 114 58 95 95 60 EI-120 400VA 120 64 100 100 67 EI-133 500VA 133 64 111 111 67 EI-150 700VA 150 67 125 125 71 1000VA 1 ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Typical applications

Industrial control panels and PLC power rails
LED drivers, signage and display power
Battery charging and DC backup systems
Motor drives, welding sets and rectifier assemblies
Instrumentation and test equipment

How to specify the right Power Transformer

Size the output current with at least 20-30 % headroom over the load
Check the input range covers the local supply, including brown-outs
Confirm the enclosure and cooling method for the panel temperature
Verify the protection set: over-current, over-voltage, thermal and short circuit

Specifications

Technique parameter

Iron core specification	Power	External size
a	b	c	d	e
EI-66	30VA	66	30	59	57	64
EI-76	40VA	76	33	64	64	67
50VA	76	35	64	64	69
70VA	76	42	64	64	76
EI-86	100VA	86	45	71	73	75
120VA	86	50	71	72	93
EI-96	150VA	96	49	80	80	85
EI-105	200VA	105	51	87	87	88
EI-114	300VA	114	58	95	95	60
EI-120	400VA	120	64	100	100	67
EI-133	500VA	133	64	111	111	67
EI-150	700VA	150	67	125	125	71
1000VA	150	80	125	125	84
EI-171	1500VA	171	85	144	144	90
EI-180	2000VA	180	95	150	150	100
EI-192	3000VA	192	109	159	159	114

Frequently asked questions about the EI 70VA-3KVA Transformer

How much headroom should I leave on the power rating?

For continuous industrial duty plan on 20-30 % headroom above the measured load. For loads with high inrush, such as motors or capacitive input, allow more and check the surge rating rather than only the average current.

Do these units accept 110 V and 230 V mains?

Input ranges are model-specific and shown in the specification table. Where a wide-range input is available it is stated; otherwise send your mains voltage and we will match the model.

What protection features are built in?

Typical protection covers short circuit, over-current, over-voltage and thermal shutdown. The exact set is listed per model in the specification table above.

Can you supply matching DIN-rail or enclosed versions?

Open-frame, enclosed and DIN-rail variants exist across this family. Send the model you are working from and we will confirm the equivalent mounting option.