What payment terms are accepted?

We accept LC, T/T, PayPal, Western Union, and small-amount payments.

Are the bushings suitable for outdoor use?

Yes, all outdoor bushings are manufactured and tested in accordance with IEC60137 to meet various environmental conditions.

Durable DIN Standard 30NF 250A CD720mm Transfoemer Bushing

Name: Durable DIN Standard 30NF 250A CD720mm Transfoemer Bushing
Brand: Nanjing Rainbow Electric Co., Ltd.
SKU: 2133679935

Jiangsu, ChinaNanjing Rainbow Electric Co., Ltd.

US$6.00-20.00

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Application

Machine Protection, Wire & Cable Protection

Color

Brown

Model NO.

DIN Transformer Bushing

Flexibility

Rigid

Inner Diameter

12 mm

Material

Porcelain

Maximum Voltage

20KV~100KV

Outer Diameter

Delivery

30 Days

Voltage

30KV

Current

250A

External Material

Porcelain Ceramic

Internal Material

Brass Copper

Transport Package

Wooden Pallet

Trademark

NJREC

Origin

China

HS Code

85462090

Key features

DIN & EN Standards Compliance: Meets historical DIN42533 and latest EN50180/EN50386 specifications for global compatibility.

Wide Voltage & Current Range: Supports rated voltages from 12kV to 52kV and currents from 250A to 4500A.

IEC60137 Certified Testing: All outdoor bushings are manufactured and tested strictly in accordance with IEC60137 standards.

Customizable Surface Finishing: Metal parts can be tin-plated, galvanized, or copper-plated based on specific customer requirements.

Flexible Termination Options: Offers screwed conductor stems, flag terminals, or machined holes for air and oil end connections.

High-Quality Material Construction: Constructed with porcelain/ceramic external material and brass/copper internal rods for durability.

Adaptable Creepage Distances: Nominal creepage distances range from 290mm to 1655mm to suit various environmental conditions.

Fast Delivery Lead Time: Standard delivery within 30 days, with off-season lead times as short as 15 working days.

Company profile

Nanjing Rainbow Electric Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading Company, Group CorporationExport Year: 2002-02-10Nearest Port: Shanghai Port, China, Nanjing Port, China, Ningbo Port, ChinaAverage Response Time: ≤2.54hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP, FCA, EXW

About Our Factory & Business Background

AddressNo. 396 Heyan Road, Nanjing, Jiangsu, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsTransformer Bushing, Porcelain Insulator, Composite Insulator, Condenser Bushing, Glass Insulator, Insulation Materials, Wall Bushing, Porcelain Bushing, Tap Changer

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:What standards do these transformer bushings comply with?

Our bushings comply with historical DIN specifications (DIN42533) and the latest EN specifications (EN50386 & EN50180). They are also tested according to IEC60137.

Q:What is the maximum voltage and current rating?

The maximum rated voltage ranges from 12kV up to 52kV, and the maximum rated current ranges from 250A up to 4500A.

Q:Can the surface finishing of the metal parts be customized?

Yes, we can customize the surface finishing of metal parts according to customer requirements, including tin plating, galvanizing, and copper plating.

Q:What materials are used for the bushing?

The external material is typically porcelain or porcelain ceramic, while the internal rod material is made of copper or brass.

Q:What are the delivery timeframes?

Standard delivery is within 30 days. During the off-season, lead time is within 15 working days, while peak season lead time is about one month.