How long does delivery take?

Standard products take 10-15 working days. New customizations require an additional 5-7 days for samples. Large orders may take 15-30 days.

Can samples be provided and how are they charged?

Samples are available for serious customers. A sample fee is usually required but can be refunded or deducted after a bulk order. Lead time is 3-5 days.

What causes transformer failure and is there a warranty?

Failures are often due to overload, short circuits, or harsh environments. We provide a 1-year warranty covering free repair or replacement for quality issues.

5V 12V 24V 220V AC Power Ei 6622 Step-up Step-Down Transformer for Access Control

Name: 5V 12V 24V 220V AC Power Ei 6622 Step-up Step-Down Transformer for Access Control
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2230880955

Zhejiang, ChinaHangzhou Udwells Technology Co., Ltd.

US$0.50-1.50

500 Pieces

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Single

Model NO.

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001

Usage

Single-phase Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Operating Temperature

-40ºCTO +125ºC

Storage Temperature

-25ºCTO+85ºC

Customize

Yes

Type

Ei/Toroidal

Installation Method

Vertical/Horizontal/with a Base/with a Cover

Transport Package

Export Standard Carton and Strong Pallet

Specification

EI Series Low Frequency Transformer

Origin

Zhejiang

Production Capacity

200000 PCS/Month

Key features

Wide Voltage Range: Supports 5V, 12V, 24V, and 220V AC input/output configurations.

EI Core Design: Features EI-type core structure for efficient magnetic circuit performance.

Customization Available: Offers full customization for type, installation method, and temperature ratings.

High Power Capacity: Available in models ranging from 0.3VA up to 2000VA for diverse applications.

Dry Type Cooling: Utilizes dry-type transformer cooling method for safe and reliable operation.

ISO9001 Certified: Manufacturing process meets ISO9001 quality management standards.

Multi-winding Capability: Designed with multi-winding structure for complex power distribution needs.

Company profile

High Repeat Buyers ChoiceFast DeliveryPrivate MoldQuality Assurance

Hangzhou Udwells Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤3.27h

AI-Powered supplier vetting

SummaryHANGZHOU UDWELLS TECHNOLOGY CO. Ltd. is a combined company with a strong technological base and significant production capacity. It offers OEM services for popular brands and operates more than 10 production lines. However, there are gaps in R&D documentation and service capability procedures. The company does not hold SDKs for development, nor does it have overseas facilities or participate in trade shows. Its primary export market is Europe, and it has proximity to major ports in China.

Supplier typeThe supplier is identified as a 'Combined' type company, indicating a diverse business scope.

After-Sales capabilityThe supplier provides technical support for production and after-sales service but lacks documented procedures for service capability and customer complaint handling.

R&D capabilityThe company lacks R&D audit documentation and SDK availability, indicating limitations in software development and innovation processes.

Production capacityThe supplier operates 27 production lines, indicating robust manufacturing capacity. Its annual production output ranges from US$1 Million to US$2.5 Million.

Customization capabilityThe supplier provides OEM services for well-known brands, demonstrating its ability to customize production.

Product Q&A

Q:What specifications are needed for production?

Please provide Input Voltage with fluctuation range, Output Voltage and Current, Rated Power (VA/W), Frequency (50Hz/60Hz), Construction type (Toroidal/EI/R), Installation method, and Insulation Grade.

Q:Which should I choose: Toroidal or EI transformer?

Toroidal offers higher efficiency and lower interference but is larger and costlier. EI is smaller, lighter, cheaper, and easier to maintain, suitable for general industrial use.

Q:Is there a shielding layer in transformers?

Yes, a copper foil shielding layer can be added between primary and secondary coils to suppress high interference and enhance EMI resistance, essential for audio and measuring instruments.

Q:How do you ensure quality and service life?

We use high-grade silicon steel sheets, 100% pure copper wire, Class B+ insulation, VPI process, and conduct 100% factory tests including Hi-Pot, inter-winding, and load tests.

Q:What is the price and minimum order quantity (MOQ)?

Price depends on power, materials, and process complexity. MOQ is lower for standard specs (e.g., 100pcs) and higher for custom specs requiring mold opening (e.g., 500-1000pcs).