ABB Industrial Product Catalog

ABB Medium-Voltage Instrument Transformers

ABB medium voltage instrument transformers are designed for measurement, metering and protection in power distribution systems. The range includes current transformers and voltage transformers for different voltage levels and installation requirements.

Instrument Transformers

Key Features

Current and voltage measurement

Instrument transformers provide specified secondary signals for metering and protection. Current transformers (CTs) and voltage transformers (VTs) perform different functions and are selected by their own ratios, accuracy requirements and insulation/design conditions. They are distinct from electronic energy meters and protection relays.

The original table contains 157 CT/VT references, including Chinese-market LZZBJ/LZZB and JDZ/JDZX designations. ABB’s medium-voltage AIS catalogue confirms examples such as LZZBJ9-12/133b/1. A model prefix or listed voltage is not enough to establish every ratio, core, accuracy class or regional approval.

Selection requirements

  • For CTs: primary/secondary current ratio, number of cores, each core’s metering or protection class, rated burden, instrument-security or accuracy-limit requirements, and short-time thermal/dynamic duty.
  • For VTs: primary/secondary voltage ratio, connection/earthing arrangement, secondary windings, accuracy class and burden for each required function.
  • For both: system voltage/insulation level, frequency, service conditions, mounting dimensions, primary/secondary terminals and switchgear interface.
  • For existing equipment: complete nameplate and dimensional/connection drawings rather than an assumed substitute based on voltage alone.

Standards and documentation boundaries

The cited ABB Chinese catalogue references GB 20840.1/.2/.3 and corresponding IEC 61869 parts. Confirm the exact standard, edition and regional requirements for the complete product; do not assign IEC/ANSI certification to every historical entry. The existing LZZB9G-36/205b T2 PDF concerns its stated type and is not a technical specification for all 157 references.

Reference table and quotation

The existing model, voltage and type fields remain unchanged. This table does not provide a complete Order Code database; no unverified codes or ratios have been added. Send the full type and any available ABB Article/Material Number, quantity and destination, complete ratios/classes/burdens, system duty and installation details. Add nameplate photographs and drawings for existing installations.

Browse Medium Voltage Products or Contact. Official basis: ABB medium-voltage AIS instrument transformers catalogue, 1YLA000281 Rev G.

Popular Models

  • LZZBJ9-36/250W3b (II)
  • LZZB9G-36/198b
  • LZZB9G-36/198h T1
  • LZZB9G-36/205b T2
  • JDZ27-20
  • JDZX25-20
  • JDZX23-27.5W
  • JDZX23G-35
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ModelVoltageType
LZZBJ9-12/133b/112 kVCurrent Transformer
LZZBJ9-12/133b/212 kVCurrent Transformer
LZZBJ9-12/133b/412 kVCurrent Transformer
LZZBJ9-12/150b/112 kVCurrent Transformer
LZZBJ9-12/150b/212 kVCurrent Transformer
LZZBJ9-12/150b/412 kVCurrent Transformer
LZZBJ9-12/150b/2S (VI)12 kVCurrent Transformer
LZZBJ9-12/150b/4S (VI)12 kVCurrent Transformer
LZZBJ9-12/185b/212 kVCurrent Transformer
LZZBJ9-12/185b/412 kVCurrent Transformer
LZZBJ9-12/185h/212 kVCurrent Transformer
LZZBJ9-12/185h/412 kVCurrent Transformer
LZZBJ9-12/225b/412 kVCurrent Transformer
LZZBJ9-12/225h/412 kVCurrent Transformer
LZZBJ9-10A112 kVCurrent Transformer
LZZX-10Q12 kVCurrent Transformer
LMZB1-1012 kVCurrent Transformer
LMZBJ1-10/250 (II)12 kVCurrent Transformer
LMZBJ1-10/325 (I)12 kVCurrent Transformer
ZJ10-12/133b12 kVCurrent Transformer
ZJ10-12/150b12 kVCurrent Transformer
ZJ10-12/185b12 kVCurrent Transformer
ZJ10-12/185b (I)12 kVCurrent Transformer
LZZB6G-12/180b12 kVCurrent Transformer
LZZBJ9-24/178b/224 kVCurrent Transformer
LZZBJ9-24/178b/424 kVCurrent Transformer
LZZBJ9-24/178h/224 kVCurrent Transformer
LZZBJ9-24/178h/424 kVCurrent Transformer
LZZBJ9-24/185b/224 kVCurrent Transformer
LZZBJ9-24/185b/424 kVCurrent Transformer
LZZBJ9-24/185h/224 kVCurrent Transformer
LZZBJ9-24/185h/424 kVCurrent Transformer
LZZBJ9-24/220h/424 kVCurrent Transformer
LZZBJ9-24/225b/424 kVCurrent Transformer
LZZBJ9-24/225h/424 kVCurrent Transformer
LZZB9-24/185b (Ⅱ)24 kVCurrent Transformer
LZZB9-24/185h (Ⅱ)24 kVCurrent Transformer
LZZB6G-24/180b24 kVCurrent Transformer
LZZBJ9-27.5/250W3h27.5 kVCurrent Transformer
LZZBJ9-36/250W3b40.5 kVCurrent Transformer
LZZBJ9-36/250W3h40.5 kVCurrent Transformer
LZZBJ9-36/250W3l40.5 kVCurrent Transformer
LZZBJ9-36/250W4b40.5 kVCurrent Transformer
LZZBJ9-36/250W4h40.5 kVCurrent Transformer
LZZBJ9-36/285W3b40.5 kVCurrent Transformer
LZZBJ9-36/285W3h40.5 kVCurrent Transformer
LZZBJ9-36/250W3b (II)40.5 kVCurrent Transformer
LZZBJ9-36/250W3h (II)40.5 kVCurrent Transformer
LZZBJ9-36/250W3l (II)40.5 kVCurrent Transformer
LZZBJ9-36/285W3 (II)40.5 kVCurrent Transformer
LZZB9G-36/158b (I)40.5 kVCurrent Transformer
LZZB9G-36/158b40.5 kVCurrent Transformer
LZZB9G-36/188s40.5 kVCurrent Transformer
LZZB9G-36/188s (I)40.5 kVCurrent Transformer
LZZB9G-36/198b40.5 kVCurrent Transformer
LZZB9G-36/198b T140.5 kVCurrent Transformer
LZZB9G-36/198h T140.5 kVCurrent Transformer
LZZB9G-36/205b T240.5 kVCurrent Transformer
LZZB9G-36/205bA T240.5 kVCurrent Transformer
LZZB9G-36/205h T240.5 kVCurrent Transformer
LZZB9G-36/205hA T240.5 kVCurrent Transformer
LMZ6-228×188/150-75 (107)0.72 kVRing Current Transformer
LMZ6-228×188/220-75 (107)0.72 kVRing Current Transformer
LMZ6-228×188/150-75M0.72 kVRing Current Transformer
LMZ6-228×188/220-75M0.72 kVRing Current Transformer
LMZ3-100-38C0.72 kVRing Current Transformer
LMZ3-100-42B0.72 kVRing Current Transformer
LMZ3 100-50A0.72 kVRing Current Transformer
LMZ3 100-50B0.72 kVRing Current Transformer
LMZ3-100-50C0.72 kVRing Current Transformer
LMZ3 100-60C0.72 kVRing Current Transformer
LMZ3-115-60B0.72 kVRing Current Transformer
LMZ3-125-60B0.72 kVRing Current Transformer
LMZ6-130-180-720.72 kVRing Current Transformer
LMZ6-150-120-720.72 kVRing Current Transformer
LMZ6-178-120-720.72 kVRing Current Transformer
LMZ6-226x155/220-750.72 kVRing Current Transformer
LMZ6-226x155/220-75 (I)0.72 kVRing Current Transformer
LMZ6-226x185/145-650.72 kVRing Current Transformer
LMZ6-226x166/183-800.72 kVRing Current Transformer
LMZ6-266x270/220-185x800.72 kVRing Current Transformer
LMZ6-160x146/150-800.72 kVRing Current Transformer
LMZ6-160x146/200-800.72 kVRing Current Transformer
LMZ6-280x148/100-190x600.72 kVRing Current Transformer
LMZ6-280x148/150-190x600.72 kVRing Current Transformer
JDZ10-10 (VI)12 kVVoltage Transformer
JDZ22-10C112 kVVoltage Transformer
JDZ9-1012 kVVoltage Transformer
JDZ23-1012 kVVoltage Transformer
JDZ23-10S12 kVVoltage Transformer
JDZ22-10W12 kVVoltage Transformer
JDZ15-1012 kVVoltage Transformer
JDZR24-1012 kVVoltage Transformer
JSZVR10-1012 kVVoltage Transformer
JSZVR28-10C/13512 kVVoltage Transformer
JSZVR22-10C/15012 kVVoltage Transformer
JSZVR22-10C/21012 kVVoltage Transformer
JSZVR22-10C/27512 kVVoltage Transformer
JDZX9-1012 kVVoltage Transformer
JDZX10-1012 kVVoltage Transformer
JDZX22-10C12 kVVoltage Transformer
JDZX28-10C112 kVVoltage Transformer
JDZX22-10C112 kVVoltage Transformer
JDZX23-1012 kVVoltage Transformer
JDZX28-10C1G-A (N)12 kVVoltage Transformer
JDZX22-10C1G-A (N)12 kVVoltage Transformer
JDZX22-10C2G-A (N)12 kVVoltage Transformer
JDZX22-10W-A (N)12 kVVoltage Transformer
JDZXR28-10C112 kVVoltage Transformer
JDZXR22-10C112 kVVoltage Transformer
JDZXR23-1012 kVVoltage Transformer
JDZXR24-1012 kVVoltage Transformer
JSZFR-10G-B12 kVVoltage Transformer
JSZVR27G-10C12 kVVoltage Transformer
JSZVR27G-10C112 kVVoltage Transformer
JDZX24G-1012 kVVoltage Transformer
JDZX25G-1012 kVVoltage Transformer
JDZXR27G-10B12 kVVoltage Transformer
JDZXR27G-10C12 kVVoltage Transformer
JDZXR27G-10C112 kVVoltage Transformer
JDZX28G-1012 kVVoltage Transformer
JDZX28G-10C12 kVVoltage Transformer
JDZXR28G-1012 kVVoltage Transformer
JSZYR27G-10C12 kVVoltage Transformer
JSZYR27G-10C112 kVVoltage Transformer
JDZ25-1515 kVVoltage Transformer
JDZ27-2024 kVVoltage Transformer
JSZVR13-2024 kVVoltage Transformer
JDZX25-2024 kVVoltage Transformer
JDZX26-2024 kVVoltage Transformer
JDZX27-2024 kVVoltage Transformer
JDZX25-20NG-A (N)24 kVVoltage Transformer
JDZXR26-2024 kVVoltage Transformer
JDZXR26-20-D24 kVVoltage Transformer
JDZX27G-20B24 kVVoltage Transformer
JDZXR27G-20B24 kVVoltage Transformer
JDZX27G-20C24 kVVoltage Transformer
JDZXR27G-20C24 kVVoltage Transformer
JDZX28G-2024 kVVoltage Transformer
JDZX23-27.5W27.5 kVVoltage Transformer
JDZX26G-27.527.5 kVVoltage Transformer
JDZ22-3540.5 kVVoltage Transformer
JDZ23-3540.5 kVVoltage Transformer
JSZVR22-3540.5 kVVoltage Transformer
JDZX22-35W40.5 kVVoltage Transformer
JDZX23-35W40.5 kVVoltage Transformer
JDZX12-35G-A (N)40.5 kVVoltage Transformer
JDZX22-35G-A (N)40.5 kVVoltage Transformer
JDZXR22-35C40.5 kVVoltage Transformer
JDZXR23-3540.5 kVVoltage Transformer
JDZX28G-3540.5 kVVoltage Transformer
JDZX22G-3540.5 kVVoltage Transformer
JDZX23G-3540.5 kVVoltage Transformer
JDZX23G-35-I40.5 kVVoltage Transformer
JDZX31G-3540.5 kVVoltage Transformer
JDZXR28G-35A140.5 kVVoltage Transformer
JDZXR29G-35A140.5 kVVoltage Transformer

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