*mydirectindustry

Catalogs
DITEL
LOW-VOLTAGE CURRENT TRANSFORMERS

LOW-VOLTAGE CURRENT TRANSFORMERS

Product catalog summary

Current Transformers Overview
This section outlines the range of primary currents and busbar dimensions for different types of current transformers, including wound primary series, round conductor series, and busbar series. It specifies the accuracy classes available, from Class 0.2S to Class 1, and details the minimum and maximum current ratings.

General Overview of Current Transformers
Current transformers measure electric alternating currents by producing a reduced current proportional to the primary current, isolating measuring instruments from high voltage circuits. The document explains the rated transformation ratio and highlights features such as wide accuracy classes, multiple mounting methods, and connection specifications. The applicable standard is IEC 61869-1/2, with a maximum system voltage of 0.72 kV and operating frequency of 50/60 Hz.

Instrument Security Factor
This section discusses the instrument security factor (FS), crucial for ensuring the safety of measuring devices during overloads. FS values range from 2.5 to 10, depending on the transformer type and class. Detailed tables show the FS for various transformer types and their respective current ranges.

Transformer Series Details
The document lists specific transformer series, such as LCTM, LCTR, LCTB, LCTS, and LCTP, with their respective specifications, including class, range, and instrument security factor. Each series is designed for different applications, such as wound primary, round conductor, busbar, split core, and 3-phase current transformers.

Accessories
This section briefly mentions the availability of accessories for the current transformers, although specific details are not provided in the excerpt.

Specifications
The document lists specifications for different transformer models, including:

Primary Current: Ranges from 100 A to 7500 A depending on the model.
Secondary Current: Typically 1 A or 5 A.
Accuracy Class: Options include 0.2S, 0.2, 0.5S, 0.5, and 1.
Transformer Burden: Varies by model and primary current, with values such as 1.5 VA, 5 VA, and up to 100 VA.

Dimensions
Each transformer model has specific dimensions, including hole diameter, busbar size, depth, and width. For example, the LCTB 104 series has a width of 104 mm and a depth of 45 mm.

Ordering Information
To order, the required data includes transformer type, primary current, secondary current, power, and accuracy class. Examples are provided for clarity.

Accessories
The document lists accessories such as DIN rail mounting bases, wall mounting clamps, and various screws. Each accessory has an order code and is compatible with specific transformer models.

Key Models

LCTB Series: Includes models like LCTB 104/60 and LCTB 140/80, with primary currents ranging from 100 A to 2000 A.
LCTS Series: Split core transformers with models like LCTS 93/30SC, suitable for primary currents from 100 A to 5000 A.
LCTP Series: 3-phase busbar transformers with models like LCTP 75/15, designed for primary currents from 100 A to 630 A.

Manufacturing and Contact Information
The document is produced by Diseños y Tecnología S.A. in Spain, with manufacturing by LUMEL S.A. in Poland. Contact details and websites are provided for further inquiries.

Catalog excerpts

LOW-VOLTAGE CURRENT TRANSFORMERS

Open the catalog to page 1

GENERAL OVERVIEW OF CURRENT TRANSFORMERS CURRENT TRANSFORMER is used for measurement of electric alternating currents. When current in a circuit (primary current) is too high to directly apply to measuring instruments, a current transformer produces a reduced current (secondary current) accurately proportional to the current in the circuit, which can be conveniently connected to measuring and recording instruments. A current transformer also isolates the measuring instruments from what may be very high voltage in the monitored circuit. Relationship between primary and secondary currents is called...

Open the catalog to page 5

GENERAL OVERVIEW OF CURRENT TRANSFORMERS Power requirements for measuring apparatur and relays: • Analog moving-iron meters 0.7 – 1.5VA • Rectifier current meters 0.001 – 0.250 VA • Multi-range current meters 0.005 – 5.000 VA • Current recorders 0.300-9.000 VA • Bimmetalic ammeters 2.5 – 3.0 VA • Power meter 0.2 – 5.0 VA • Power factor meter 2.0 – 6.0 VA • Meters 0.4 – 1.0 VA • Relays 0.2 – 6.0 VA • Power transducers 0.5 VA • Energy meters 2.5 VA CONNECTION DIAGRAMM OF CURRENT TRANSFORMERS IP Internal losses of copper wiring: Where: I – Secondary nominal current, L – Distance in [m], I2 x 2 L...

Open the catalog to page 6

INSTRUMENT SECURITY FACTOR

Open the catalog to page 8

INSTRUMENT SECURITY VIEW

Open the catalog to page 9

INPUT: OUTPUTS: DIMENSIONS Transformer type ORDER ACCESSORIES: Required data: transformer type/primary current/secondary current/power/accuracy class DIN rail mounting base Order example: LCTM 62/W (40) 25/5A, 5VA, c|. 1 order rode: LH000-0904-130-124

Open the catalog to page 11

INPUT: OUTPUTS: DIMENSIONS LCTR 50/14 (30) Transformer type

Open the catalog to page 12

LCTR 50/14 (50) Transformer type ORDER ACCESSORIES: Required data: transformer type/ primary current/ secondary current/ power/ accuracy class DIN rail mounting base Order example: LCTR 50/14 (50) 100/5A, 5VA, cl. 1 - for details see page 25

Open the catalog to page 13

INPUT: OUTPUTS: LCTB 45/21 (40) Transformer type ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTB 45/21 (40) 100/5A, 3.75VA, cl. 1 ACCESSORIES: DIN rail mounting base order code: LH000-0904-130-002

Open the catalog to page 14

Transformer type

Open the catalog to page 15

Transformer type ORDER ACCESSORIES: Required data: transformer type/ primary current/ secondary current/ power/ accuracy class DIN rail mounting base Order example: LCTB 50/21 (50) 100/5A, 5VA, cl. 1 - for details see page 25

Open the catalog to page 16

INPUT: OUTPUTS: DIMENSIONS Transformer type

Open the catalog to page 17

LCTB 62/30 (50) Transformer type ORDER ACCESSORIES: Required data: transformer type/ primary current/ secondary current/ power/ accuracy class DIN rail mounting baseOrder example: LCTB 62/40 (40) 100/5A, 1VA, cl. 1 - for details see page 25 18

Open the catalog to page 18

Transformer type LCTB SERIES

Open the catalog to page 19

Transformer type ORDER ACCESSORIES: Required data: transformer type/ primary current/ secondary current/ power/ accuracy class DIN rail mounting baseOrder example: LCTB 74/50 (45) 100/5A, 1.5VA, cl. 1 order code: LH000-0904-130-124 20

Open the catalog to page 20

Transformer type ORDER ACCESSORIES:Required data: transformer type/ primary current/ secondary current/ power/ accuracy class DIN rail mounting baseOrder example: LCTB 86/50 (45J100/5A, 1.5VA, cl. 1 order code: LH000-0904-130-124LCTB SERIES 21

Open the catalog to page 21

INPUT: OUTPUTS: DIMENSIONS LCTB 100/130V (45) Transformer type ACCESSORIES: DIN rail mounting base order code: LH000-0904-130-124 ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTB 100/130V (45) 400/5A, 2.5VA, cl. 1 DITELj> LUMEL

Open the catalog to page 22

INPUT: OUTPUTS: DIMENSIONS LCTB 104/60 (45) Transformer type LCTB 104/60 (45) ORDER ACCESSORIES:

Open the catalog to page 23

INPUT: OUTPUTS: LCTB 140/100H (45) Transformer type

Open the catalog to page 24

Transformer type ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTB 140/100H (45) 200/5A, 3.75VA, cl. 1

Open the catalog to page 25

LCTB 225 - BUSBAR SERIES LCTB 225/125 (50) Primary current Secondary current Accuracy class Transformer type Accuracy class Rated primary current ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTB 225/125 (50) 600/5A, 10VA, cl. 1

Open the catalog to page 26

Side view (dimensions in mm) yra Front view (dimensions in mm) Transformer type ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTS 93/30SC (40) 100/5A, 1.5VA, cl. 1 LCTS SERIES

Open the catalog to page 27

Transformer type ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTP140/31 (40) 600/5A; 2.5 VA; cl. 1 DITEL*> L U M E L

Open the catalog to page 28

INPUT: OUTPUT: DIMENSIONS Transformer type ORDER Required data: transformer type/ primary current/ secondary current/ power/ accuracy class Order example: LCTP 185/27 (45) 100/5 A, 1.5 VA, cl. 1

Open the catalog to page 29

Thread Cutting Screw Shoe for Self Tapping Screw Wall Mounting Clamp (additional accessories - have to be order separatly) Order code DITEL*> H&Uly LUMIL

Open the catalog to page 30

(delivered with each current transformer)

Open the catalog to page 31

DISEÑOS Y TECNOLOGÍA S.A. Xarol 6-B P.I. Les Guixeres 08915 BADALONA - SPAIN tel.: +34 933 394 758 fax +34 934 903 145 www.ditel.es made in POLAND by: LUMEL S.A. www.lumel.com.pl

Open the catalog to page 32

All DITEL catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list