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Stable Low Noise EI76 Control Transformer Efficient Durable For Control Panels
Place of Origin:
China
Brand Name:
CHIPSEN
Certification:
UL/cUL Class B/F/H, VDE, CQC
Model Number:
EI76
Minimum Order Quantity:
100
Price:
＄183.5-399.8/pieces
Delivery Time:
7-14 work days (Negotiable)
Payment Terms:
T/T
Supply Ability:
10000pcs
Inquiry Now
Get A Quote
Specifications
Highlight Features
Low Noise custom control transformers
,EI76 custom control transformers
,Control Panels industrial control transformer
Input Current:
12A
Winding Material:
Copper Wire
Dielectric Strength:
1800V/min
Voltage:
36V 120V 60V
Core Type:
UI
Primary Voltage:
240V
Insulation Class:
F/H
Primary:
240V
Enclouse:
NEMA 4X 304 SS
Operatingtemperaturerange:
-20°C To 40°C
Insulation:
Epoxy
Temperature Rising:
≤80℃
Mountingtype:
Panel Mount
Temperaturerise:
80°C
Efficiency:
95%
Coil:
Double Winding
Secondary:
24V 27V 32V
Configuration:
Encapsulated
Number Of Qutputs:
3 Groups
Varnish:
Vacumn Varnish
Product Description
Stable Low Noise EI76 Control Transformer
Efficient, durable control transformer designed for control panels and industrial equipment applications.
Product Overview
The EI76 is an open frame low frequency power and control transformer using a laminated EI silicon steel core with integrated mounting bracket and insulated terminal blocks. It can be customized for voltage conversion, electrical isolation, and auxiliary control power in industrial equipment.
All numerical values are typical engineering references rather than guaranteed ratings. Final specifications depend on approved customer requirements.
Industry Applications & Specifications
| Industry and Application | Common Input Requirements | Common Output Requirements | Key Parameters | Customization Support |
|---|---|---|---|---|
| Industrial Automation | 110V to 480V AC at 50Hz or 60Hz | 12V, 24V, 48V, 110V or 120V AC | VA rating, regulation, insulation, temperature rise, terminals and mounting | Input taps, output voltage, power capacity, brackets, terminals and protection devices |
| Machine Tool Control | 220V, 230V, 380V, 400V, 415V, 440V or 480V AC | 24V, 48V, 110V or 120V AC | Inrush capability, vibration resistance, dielectric strength and continuous operation | Multiple voltage taps, reinforced insulation, terminals and mounting structure |
| HVAC Equipment | 120V, 208V, 220V, 230V, 240V, 277V, 380V, 400V or 480V AC | 12V, 24V or 48V AC | Continuous load performance, temperature rise, audible noise and installation size | Primary voltage, secondary voltage, VA rating, thermal protection and bracket |
| Medical Equipment | Region specific mains voltage | Application specified isolated AC output | Insulation, leakage current, temperature rise, noise and traceability | Shielding, insulation system, protection devices and testing documentation |
| Commercial Appliances | 110V, 120V, 220V, 230V or 240V AC | 9V, 12V, 18V, 24V, 36V or 48V AC | Efficiency, cost, regulation, compact construction and terminal safety | Windings, voltage ratio, terminals, bracket, label and packaging |
Customization Parameters
| Parameter | Typical Reference | Customization Status |
|---|---|---|
| Core Type | EI76 laminated silicon steel core | Customizable |
| Operating Frequency | 50Hz, 60Hz or dual frequency design | Customizable |
| Primary Voltage | 100V to 480V AC depending on winding and insulation design | Customizable |
| Secondary Voltage | 6V to 120V AC commonly requested | Customizable |
| Power Capacity | Approximately 30VA to 150VA depending on stack size and temperature rise | Customizable |
| Primary Configuration | Single input, dual input or multiple voltage taps | Customizable |
| Secondary Configuration | Single, dual or multiple output windings | Customizable |
Product Construction
| Construction Element | Description |
|---|---|
| Magnetic Core | EI76 laminated silicon steel core for 50Hz and 60Hz operation |
| Primary Winding | Copper winding designed for single, dual or multiple input voltages |
| Secondary Winding | Single or multiple copper windings developed for required output |
| Bobbin | Insulating coil former selected according to voltage and temperature requirements |
| Insulation System | Barriers, tape, sleeving, margins and interlayer insulation based on approved design |
| Terminal Blocks | Insulated terminals for accessible and reliable equipment wiring |
Key Characteristics
- EI76 laminated silicon steel core
- Designed for 50Hz and 60Hz power systems
- Stable voltage conversion and electrical isolation
- Open frame structure supporting natural heat dissipation
- Low audible noise design available
- Single, dual or multiple primary voltage options
- Single or multiple secondary output options
- Insulated terminal blocks for convenient wiring
- Integrated metal bracket for secure installation
- Custom step down, step up and isolation configurations
- Optional thermal fuse or temperature protector
- Optional electrostatic shielding
Applications
- Industrial automation equipment
- Machine tool control circuits
- Control cabinets and electrical panels
- HVAC control systems
- Motor control panels
- Programmable logic controller systems
- Relay and contactor circuits
- Medical and laboratory equipment
- Test and measurement instruments
- Commercial and professional appliances
Quality Control
| Inspection Item | Inspection Purpose |
|---|---|
| Turns Ratio Test | Confirms designed primary and secondary voltage relationship |
| No Load Voltage Test | Verifies secondary output without connected load |
| Full Load Voltage Test | Confirms output voltage and regulation at rated load |
| No Load Current Test | Evaluates core excitation and magnetic assembly performance |
| Winding Resistance Test | Confirms winding consistency and conductor condition |
| Insulation Resistance Test | Evaluates insulation between windings, core, bracket and terminals |
Why Choose Chipsen
- Customized primary and secondary voltage combinations
- Single, dual and multiple winding configurations
- Drawing based and sample based replacement development
- Custom power capacity, regulation and temperature rise design
- Insulated terminal block and wiring customization
- Integrated bracket and mounting dimension customization
- Optional thermal fuse, thermostat and electrostatic shield
- Insulation design based on actual working voltage and environment
- Low noise and thermal optimization for industrial equipment
- Prototype development and evaluation support
Frequently Asked Questions
What information is required to customize an EI76 transformer?
Please provide input voltage, frequency, output voltage, output current or VA rating, duty cycle, ambient temperature, maximum dimensions, mounting method, terminal arrangement, insulation requirements, protection requirements, certification needs and annual demand.
Please provide input voltage, frequency, output voltage, output current or VA rating, duty cycle, ambient temperature, maximum dimensions, mounting method, terminal arrangement, insulation requirements, protection requirements, certification needs and annual demand.
What power rating can an EI76 transformer provide?
Approximately 30VA to 150VA is typical. Actual capacity depends on core stack thickness, frequency, voltage regulation, temperature rise, winding construction, enclosure ventilation and operating duty.
Approximately 30VA to 150VA is typical. Actual capacity depends on core stack thickness, frequency, voltage regulation, temperature rise, winding construction, enclosure ventilation and operating duty.
Can the transformer support several input voltages?
Yes. Dual primary windings or multiple voltage taps can be designed for different supply voltages. Connection method must be defined in the approved wiring diagram.
Yes. Dual primary windings or multiple voltage taps can be designed for different supply voltages. Connection method must be defined in the approved wiring diagram.
Can multiple output voltages be provided?
Yes. Single, dual or multiple secondary windings can be designed when winding space, power capacity, insulation and temperature rise permit.
Yes. Single, dual or multiple secondary windings can be designed when winding space, power capacity, insulation and temperature rise permit.
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