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Large Custom EI240 Low Frequency Transformer Stable Durable Industrial Controls

Categories Three Phase Transformer
Certification: UL/cUL Class B/F/H, VDE, CQC
Windings: Multi-winding Transformer
Model Number: EI240
Bobbin Material: Phenolic
MOQ: 1K
Delivery Time: 7-14 work days (Negotiable)
Efficiency: up to 98% or higher
Payment Terms: T/T
Price: $83.5-99.8/pieces
Product Size: 1000*800*1800mm
Supply Ability: 10000pcs
Brand Name: CHIPSEN
Product Model: SG-80KVA
Place of Origin: China
Cooling Method: dip varnish
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Large Custom EI240 Low Frequency Transformer Stable Durable Industrial Controls

Large Custom EI240 Low Frequency Transformer
Stable, durable transformer platform for industrial controls and automation systems
Product Overview
The EI240 is a large low-frequency laminated-core transformer platform designed for industrial control power, voltage conversion, galvanic isolation, auxiliary distribution, automation equipment, machinery, emergency-power systems, energy storage, and charging equipment.
Important Note: The values below are common international buyer inquiry references and starting points for engineering discussion. They are not fixed or guaranteed ratings. Final specifications are confirmed through the approved specification, drawing, and sample-validation process.
Large EI240 industrial transformer showing laminated magnetic core structure with multiple coil sections and connection terminals
The image shows a large open-frame assembly with laminated magnetic structure, substantial coil sections, multiple connection terminals, insulating supports, and a rigid mounting frame.
Industry Applications & Specifications
IndustryTypical ApplicationInput VoltageOutput VoltageCapacity RangeFrequency
Industrial AutomationMain control transformer for large panels, PLC systems and machinery110V to 480V AC12V, 24V, 48V, 110V, 120V or 220V AC1 kVA to 20 kVA50Hz, 60Hz or dual
Control CabinetsPower for contactors, drives, interfaces and cabinet auxiliaries208V to 480V AC24V, 48V, 110V, 120V, 220V or customized1 kVA to 15 kVA50Hz or 60Hz
Industrial MachineryAuxiliary transformer for CNC, packaging, pumps and processing equipment200V to 690V AC24V to 480V AC2 kVA to 30 kVA50Hz or 60Hz
Emergency Power & UPSBypass control isolation and auxiliary distributionUtility, inverter or generator-derived ACIsolated control distribution or charger output2 kVA to 30 kVA50Hz or 60Hz
Energy Storage SystemsPCS cabinet auxiliary and control-power transformer208V to 690V ACIsolated control, cooling or service voltage2 kVA to 30 kVA50Hz or 60Hz
EV Charging EquipmentAuxiliary distribution and control-power isolationSingle-phase or three-phase charger inputIsolated power for contactors, cooling and controls2 kVA to 25 kVA50Hz or 60Hz
Customizable Parameters
  • Phase configuration (single-phase or three-phase)
  • Primary and secondary line voltage
  • Rated kVA or VA capacity
  • Frequency (50Hz, 60Hz or dual)
  • Vector group and phase sequence
  • Neutral arrangement and voltage taps
  • Impedance, regulation, and efficiency targets
  • Temperature rise and insulation class
  • Dielectric strength and thermal sensors
  • Electrostatic shield and lamination grade
  • Terminals, busbars, and mounting frame
  • Enclosure, cooling, and impregnation
Construction Details
ComponentSpecification
Magnetic PlatformLarge EI240 laminated silicon-steel core
Lamination MaterialSilicon-steel grade and thickness optimized for performance
Phase ArrangementSingle-phase or three-phase construction
Winding ConductorEnameled copper wire, rectangular conductor or foil
Insulation SystemCoil formers, barriers, tape, spacers, and terminal separation
Terminal SystemMultiple upper and lower terminals with color identification
Mounting FrameRigid frame and mounting feet with confirmed dimensions
Key Characteristics
Large Industrial Power Platform
The EI240 platform supports large lamination stacks, substantial conductor cross-sections, robust terminal systems, and mechanical frames suitable for industrial environments.
Flexible Phase Configuration
Available in single-phase or three-phase designs with customizable vector groups, phase sequences, and neutral arrangements.
Voltage and Tap Flexibility
Multiple primary taps, dual-voltage inputs, separate secondaries, center taps, and special output combinations within insulation and thermal constraints.
Controlled Performance
Precision engineering for specified regulation, impedance, losses, efficiency, and temperature rise targets.
Applications
  • Large industrial control cabinets and factory automation systems
  • CNC and production machinery
  • Packaging and material-handling equipment
  • Pump, compressor and motor-control systems
  • Emergency-power and UPS auxiliaries
  • Energy-storage PCS cabinets
  • EV charging equipment
  • HVAC and building-control systems
  • Solar and renewable-energy equipment
  • Industrial rectifier and charger systems
Quality Control & Testing
Comprehensive Testing Protocol
  • Winding resistance and turns ratio verification
  • Phase relationship and vector-group validation
  • No-load and full-load voltage measurements
  • No-load current, loss, and impedance testing
  • Dielectric strength and insulation resistance
  • Phase balance and sensor function verification
Sample Validation
Samples undergo testing at minimum and maximum input voltages, all required taps, applicable frequencies, no-load, full-load, and expected overload conditions to validate performance under real-world operating scenarios.
Why Choose Chipsen
  • Application-Specific Customization: Tailored solutions for your specific requirements
  • OEM and ODM Support: Comprehensive customization services
  • Engineering Collaboration: Technical expertise for optimal design solutions
  • Flexible Prototype Support: MOQ of 100 pieces with responsive project handling
  • Rapid Response: Quotation within 3 days, sample production within 7 days
  • Warranty Support: 5-year standard warranty, 20-year for special industries
  • Controlled Specification Process: Rigorous quality assurance throughout production
Frequently Asked Questions
Does EI240 define a fixed kVA rating?
No. Capacity depends on phase arrangement, stack size, lamination material, flux density, frequency, winding design, impedance, cooling, insulation, ambient temperature, and temperature rise.
Is the transformer single phase or three phase?
The image shows multiple coil sections and terminals, but the phase configuration cannot be confirmed from the image alone. Both configurations are available.
What information is required for quotation?
Provide phase count, input/output line voltage, vector group, neutral requirements, kVA, frequency, taps, impedance, load type, power factor, harmonics, duty cycle, temperature rise, insulation, cooling, dimensions, terminals, and test requirements.
Can voltages be customized?
Yes. Input voltage, output voltage, taps, neutral arrangement, multiple secondaries, and winding connections can all be customized.
Can it operate at both 50Hz and 60Hz?
A dual-frequency design may be developed, but it must be designed and validated for the lower frequency.
What is the MOQ?
Minimum order quantity is 100 pieces, subject to material availability, tooling, complexity, and qualification requirements.
Final Note: The EI240 model or lamination platform does not by itself define fixed phase arrangement, power, voltage, current, frequency, impedance, insulation, or thermal ratings. Final performance is confirmed only through the approved drawing, wiring diagram, electrical specification, material system, test plan, and customer sample-validation process.
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