Current Transformers Shunts And Panel Meters From One Factory
QIANWEI builds the measuring chain that sits behind the meter: moulded case and busbar CTs, split core and clamp on CTs, flexible Rogowski coils, protection cores, DIN 43703 DC shunts and RS485 transducers. One factory in Liushi, one set of drawings, one point of contact.
What We Make
Measuring and protection current transformers, split core and clamp on CTs, flexible Rogowski coils, cast resin and medium voltage instrument transformers, DIN 43703 DC shunts, panel meters and RS485 measuring transducers.
Who We Serve
Low voltage switchgear and panel builders, energy meter and power monitoring OEMs, sub metering and energy audit contractors, MV switchgear and ring main unit manufacturers, and electrical wholesalers carrying a house brand.
What Problem We Solve
A switchboard needs ten different frames, three mounting styles and two accuracy classes, and sourcing them from five suppliers is where lead time and rework come from. Every frame in the measuring chain comes from one factory instead.
Why Customers Choose Us
A frame ladder wide enough that one series covers a whole board, cross reference support for the European and UK part numbers buyers already hold, and distributors on five continents who have carried the range for years.
Six Ranges And One Cross Reference Library
Every frame ladder below is published in full so a whole switchboard can be served by one series.
Moulded Case And Busbar CTs
Plastic case measuring current transformers for panel boards and switchgear. Ten to twelve frame sizes per family, primary current from 1 A to 6000 A,...
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Split Core And Clamp On CTs
Openable core current transformers that install on a live cable or busbar without breaking the primary circuit. Square, ring, clamp and outdoor waterp...
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Flexible Rogowski Coil CTs
Air cored rope style coils that clip around irregular bus, cable bundles and awkward geometry. 10 A to 100 kA, coil length 20 cm to 200 cm, mV or inte...
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Protection And Three Phase CTs
Protection class current transformers to 5P5, 5P10, 5P20, 10P5, 10P10 and 10P20, three in one sets that mount straight onto moulded case circuit break...
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Cast Resin And MV CTs
Epoxy resin cast instrument transformers and reactors for 0.5/0.66 kV indoor duty up to 36 kV medium voltage post type units, plus current limiting re...
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Shunts Meters And Transducers
DIN 43703 precision DC shunts from 1 A to 4000 A, demand and digital panel meters, and RS485 measuring transducers that turn a three phase supply into...
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Cross Reference Showroom
A reference library of the European, UK and Asian current transformer families buyers ask us to match. These pages describe the market standard so you...
See the rangeFrames Buyers Order Most
ABO Current Transformer
Primary current 5 A to 5000 A
Secondary current 5 A, 1 A, 0.5 A, 0.25 A, 0.1 A
DBP Square Split Core Current Transformer
Primary current 5 A to 5000 A
Secondary current 5 A / 1 A
HK Split Core Current Transformer
Primary current 5 A to 5000 A
Design One button clamp on, open type
SCT Clamp Split Core Current Transformer
Maximum continuous primary current 5 A to 120 A
Secondary turns 3000, or per customer datasheet
From Silicon Steel To Sealed Carton
Real Photographs From The Liushi Plant
Every image on this site is a real photograph of the product or the factory. No stock images.
What Makes The Difference On A Real Order
One Supplier For The Whole Measuring Chain
Current transformers, shunts, panel meters and transducers are quoted, tested and shipped together, so the CT ratio and the meter scale always match.
Frame Ladders Not Single Parts
MES, CA, MSQ, MBO, ABO, RCT and MR are each published as a full ladder, so a board that runs from a 100 A outgoing way to a 3000 A incomer is served by one series.
Cross Reference Instead Of Guesswork
Most enquiries start with someone else's part number. The cross reference showroom identifies the frame, window and burden you already use before anything is quoted.
Built To The Standards Your Specification Names
IEC 61869-2, IEC 60044-1, BS 7626, VDE 0414, DIN 43703, ANSI/IEEE C57.13 and GB 1208 appear on the product data because they appear in the tender.
Questions Buyers Ask
What is the minimum order quantity?
It depends on the frame and whether the part is standard or built to your drawing. Send the ratio, class and quantity you have in mind and an engineer will answer directly.
Can I get samples before ordering?
Samples are offered on the popular frames. Message an engineer on WhatsApp with the exact ratio, class and burden.
Do you supply against a competitor part number?
Yes. The cross reference showroom identifies the Lovato, Rayleigh, Hobut, Crompton, MBS, IME, EFEN and Lumel frames, and an engineer confirms the equivalent.
Which standards do the products meet?
IEC 61869-2, IEC 60044-1, BS 7626, VDE 0414, DIN 43703, ANSI/IEEE C57.13, GB 1208 are quoted across the range, with UL94 V-0 moulded cases.
Where are you located?
No. 8, Qianyao Industrial Zone, Liushi, Yueqing, Wenzhou, Zhejiang, China. Visitors are welcome; contact us to arrange a factory visit.
Tell Us The Ratio Class And Burden You Need
Send a part number, a rating plate photograph or a drawing. An engineer replies with the confirmed frame, the specification and a price.