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Product catalog summary
Technical Specifications: The document details the technical specifications for low voltage current transformers (CTs) in compliance with VDE 0414 T44-1 and IEC/EN 60044-1 standards. It covers primary current ranges, mounting options, and accuracy classes for different CT types.
Selection Information: Guidance is provided for selecting CTs based on mechanical arrangement and busbar dimensions. CTs can operate up to 1.2 times the primary current while maintaining accuracy. The document emphasizes the importance of selecting CTs with appropriate secondary current ratings, especially for long cable connections, and advises on burden requirements and power consumption considerations.
Product Range: EFEN offers a variety of CTs, including window type, tube type, primary wound, and summation CTs. Special designs and PTB-approved versions for electrical accounting are available. The document provides an overview of CT dimensions, primary busbar sizes, and accuracy classes.
Installation and Usage: Installation guidelines include recommended tightening torque for secondary terminals and permissible ambient temperature ranges. It also covers the rated power-frequency withstand voltage and insulation class according to IEC 60085.
Power Consumption Tables: Tables are provided to calculate power consumption based on cable length and cross-section for secondary currents of 1 A and 5 A, ensuring that the power consumption of metering devices and cables remains within the rated burden of the CTs.
Overview: The document provides detailed specifications and ordering information for low voltage CTs used in electrical systems, including accuracy classes, burden values, and order numbers for various CT models.
Specifications: CTs are categorized by primary current ratings, ranging from 300/5 A to 3000/5 A, with accuracy classes (0.2, 0.5, 0.5 S) and corresponding burden (VA). Primary busbar dimensions are specified, and CTs with a secondary current of 1 A are available on demand.
Ordering Information: Specific order numbers are provided for each CT model based on burden and accuracy class, crucial for procurement and ensuring the correct CT is ordered for specific applications.
Standards and Compliance: CTs comply with standards such as VDE 0414 T44-1 and IEC/EN 60044-1, ensuring they meet industry requirements for safety and performance.
Additional Products: The document mentions other products in the sales program, including NH fuse-links, load break switches, and surge arresters, indicating a broad range of electrical components offered by the company.
Contact Information: Contact details for EFEN GmbH and its international branches are provided for customer support and inquiries.
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Catalog excerpts

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Low Voltage Current Transformers

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers 2 Technische Daten nach VDE 0414 T44-1 & IEC/EN 60044-1 Technical Data acc. to VDE 0414 T44-1 & IEC/EN 600044-1 Information zur Auswahl von Stromwandlern Information for selection of CTs Primärströme 50 A bis 300 A Primary current 50 A to 300 A Montage auf Schienen 20 x 10 mm und Grundplatte Mountable on busbars 20 x 10 mm and baseplate Primärströme 50 A bis 600 A Primary current 50 A to 600 A Montage auf Schienen 30 x 10 mm und Grundplatte Mountable on busbars 30 x 10 mm and baseplate Primärströme 75 A bis 600 A Primary current...

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers I N Als kompetenter Hersteller von verschiedensten Niederspannungsschaltgeräten und Sicherungen ist EFEN auch im Bereich der Niederspannungsstromwandler optimal auf die Anforderungen des Marktes eingestellt. EFEN has a long history as producer of a wide variety of NH Fuse-Switches and NH Fuse-Links. This knowledge has enabled EFEN to offer CTs which perfectly meet the demands of the market. Neben einem großen Sortiment an Stromwandlern, haben wir ebenfalls im Bereich der eichfähigen Stromwandler bis zu einem Primärstrom von 5000...

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers 4 Übersicht Aufsteckwandler / Overview window type CTs PSA 213 Wandlertyp / CT type PSA 113 PSA 115 PSA 313 PSA 315 Wandlermasse Höhe x Breite x Tiefe / CT dimensions [mm] 70 x 50 x 30 70 x 50 x 50 78 x 60 x 30 85 x 60 x 55 Primär-Schienemasse / Primary busbar size [mm] 30 x 10 30 x 10 30 x 10 30 x 10 Max. Primär-Rundleiter Maße / Max. Primary round cable size [mm] – – 28 28 Sekundär-Nennstrom 5 A oder 1 A / Rated secondary current 5 A or 1 A Genauigkeitsklassen / Accuracy class 0,5 1 0,5 1 0,5 1 0,5 1 Min. Primästrom / Min. Primary...

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers I N Technische Daten nach VDE 0414 T44-1 & IEC/EN 60044-1 Technical Data acc. to VDE 0414 T44-1 & IEC/EN 600044-1 Aufsteckwandler Window Type CTs Wickelwandler Primary Wounded CTs Sekundärer Bemessungsstrom I2N Rated secondary current I2N Bemessungs-Frequenz Rated frequency Rohrstabwandler Tube Type CTs Primärer Bemessungsstrom I1N Rated primary current I1N 50 – 60 Hz auf Anfrage Sonderausführungen 162/3 – 400 Hz on demand special types 162/3 – 400 Hz Höchste Spannung am Betriebsmittel Um Highest voltage for equipment Um (r.m.s)...

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers 6 Information zur Auswahl von Stromwandlern Der Stromwandler sollte zunächst nach den mechanischen Anordnung und Größe der Kupferschienen ausgewählt werden. The CT should firstly be selected according to the dimensions and the distance between busbars. Zulässiger Messbereich Stromwandler können grundsätzlich mit bis zu 1,2 fachen primären Nennstrom betrieben werden, sodass die Klassengenauigkeit eingehalten wird. Für ein 630 A Sammelschienensystem kann ein Wandler mit primärem Nennstrom von 600 A gewählt werden. Dieser hält die...

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers I N Leistungsbedarf der Leitung zwei Adern in VA für Sekundärströme von 1 A Power consumption of two wire cable in VA for secondary currents of 1 A Leiterquerschnitt Cross-section Leistungsbedarf in VA nach Kabellänge Power consumption in VA according to cable length 10 m Grundsätzlich sollte der Leistungsbedarf von Messgerät und Messleitung zwischen der vollen Nennleistung (Nennbürde) und 1/4 Nennleistung des Stromwandlers liegen. The power consumption of metering-device and cable connection should be between the rated power output...

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers 8 Niederspannungsstromwandler Primärströme 50 A bis 300 A Montage auf Schienen 20 x 10 mm und Grundplatte VDE 0414 T44-1 Low voltage current transformer Primary current 50 A to 300 A Mountable on busbars 20 x 10 mm and baseplate IEC/EN 60044-1 Leistung / Burden 2,5 VA 5 VA 10 VA Bestellnr. Bestellnr. Bestellnr. Order no. Order no. Order no. Leistung / Burden 5 VA 10 VA Bestellnr. Bestellnr. Order no. Order no. Primärschiene / Primary busbar 20 x 10 mm; 15 x 15 mm Rundleiter / Round cable ٠ max. 20 mm

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers I N 9 Niederspannungsstromwandler Primärströme 50 A bis 600 A Montage auf Schienen 30 x 10 mm und Grundplatte VDE 0414 T44-1 Low voltage current transformer Primary current 50 A to 600 A Mountable on busbars 30 x 10 mm and baseplate IEC/EN 60044-1 Leistung / Burden 2,5 VA 5 VA 10 VA Bestellnr. Bestellnr. Bestellnr. Order no. Order no. Order no. Primärschiene / Primary busbar 30 x 10 mm; 25 x 15 mm; 20 x 20 mm

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers 10 Niederspannungsstromwandler Primärströme 75 A bis 600 A Montage auf Schienen 30 x 10 mm und Grundplatte VDE 0414 T44-1 Low voltage current transformer Primary current 75 A to 600 A Mountable on busbars 30 x 10 mm and baseplate IEC/EN 60044-1 Leistung / Burden Primär- Sekun- Genaustrom där- igkeitsstrom klasse Leistung / Burden primary- secon- Primärschiene / Primary busbar 30 x 10 mm Rundleiter / Round cable ٠ max. 28 mm

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NW Niederspannungs-Stromwandler Low Voltage Current Transformers I N 11 Niederspannungsstromwandler Primärströme 150 A bis 800 A Montage auf Schienen 40 x 12 mm und Grundplatte VDE 0414 T44-1 Low voltage current transformer Primary current 150 A to 800 A Mountable on busbars 40 x 12 mm and baseplate IEC/EN 60044-1 Leistung / Burden Primär- Sekun- Genaustrom där- igkeitsstrom klasse Leistung / Burden primary- secon- Primärschiene / Primary busbar 40 x 12 mm Rundleiter / Round cable PSA 413 ٠ max. 28 mm PSA 415 ٠ max. 32 mm

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*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.