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EI190 4000VA Step Down Three Phase Transformer 220V to 120V UL Copper Winding
The CHIPSEN EI190110-220-15461 is a 4KVA (4000VA) low frequency step down transformer that converts a 220V 50/60Hz input into a 120V output, delivered through two independent 120V–4000VA output groups (terminals 3–4 and 5–6) so one unit can feed two separate 120V circuits or be linked for a single higher-current load. Built on an EI silicon steel laminated core with 100% copper windings and housed in a powder-coated steel enclosure with integrated mounting brackets, it is designed for continuous duty in industrial power conversion, imported 120V equipment, and machine-tool control power. The design carries UL file E339338.
Key Features
4KVA continuous rating — 220V input stepped down to 120V, rated 4000VA per output group
Dual output terminals — 3–4 and 5–6 give flexible wiring for two loads or paralleled service
Full copper winding — lower copper loss and cooler running temperature than CCA-wound alternatives
EI laminated silicon steel core — low no-load loss, low audible hum, stable output under load swing
50/60Hz dual frequency — one model works on both European and North American grid frequencies
UL recognized construction — file number E339338 marked on the nameplate
Enclosed steel housing — removable front covers for terminal access, top brackets for wall or frame mounting
OEM / ODM welcome — voltage, VA rating, terminal layout, enclosure colour and label can be customized
Technical Specifications
Model
EI190110-220-15461
Brand
CHIPSEN
Type
Low frequency step down power transformer
Core
EI silicon steel lamination (EI190 frame)
Input Voltage
220V AC (terminals 1–2)
Output Voltage
120V AC (terminals 3–4 and 5–6)
Power Rating
4000VA / 4KVA
Frequency
50 / 60Hz
Winding Material
100% copper
Certification
UL file E339338
Mounting
Enclosed steel case with top mounting brackets
Connection
Numbered terminal block behind removable cover
Customization
Voltage / VA / terminal / enclosure / label — OEM & ODM accepted
Applications
Running 120V North American equipment on a 220V supply (and the reverse, when reverse-connected)
Machine tool and CNC control power supply
Industrial automation cabinets and control panels
Laboratory, medical and test bench power conversion
Commercial kitchen, printing and packaging machinery
Lighting and HVAC auxiliary power circuits
Why Choose Us
Dedicated transformer manufacturer with in-house winding, varnishing and assembly
100% electrical test before packing: turns ratio, no-load current, hi-pot and insulation resistance
Engineering support for drawing-based and specification-based custom designs
Export packing with foam corners and plywood/carton outer case for safe long-haul transport
Frequently Asked Questions
Q1: Can the two 120V outputs be used at the same time?
Yes. Terminals 3–4 and 5–6 are separate 120V groups and can feed two loads independently, within the total rated capacity.
Q2: Can it be used as a step up transformer?
Yes, the unit can be reverse-connected to convert 120V up to 220V. Please confirm the application with our engineers before wiring.
Q3: Do you accept custom voltage and VA ratings?
Yes. Send us your input/output voltage, VA rating, frequency and terminal requirement, and we will quote a custom design.
Q4: Is a sample available?
Sample orders are accepted. Lead time and sample cost depend on whether the model is a standard or custom design.
Send us your voltage, capacity and quantity requirement and our engineering team will reply with a technical proposal and quotation.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
28820000-29820000
Employee Number:
400~450
Ecer Certification：
Verified Supplier
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
