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Low voltage transformers

Low voltage transformers
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Low voltage transformers

Product catalog summary
Overview: This document provides comprehensive technical specifications and guidelines for low voltage single-phase and three-phase transformers and reactors. It covers various types, including autotransformers and line reactors, detailing their specifications, standards, and additional features.
Single-Phase Transformers: Designed for control, safety, or isolation purposes, these transformers offer high instantaneous power for control gear. Key features include double primary voltage, serial-parallel connection, and TIG welding to reduce vibrations and noise. They comply with IEC and EN standards.
Three-Phase Transformers: These transformers are used for voltage changes with galvanic isolation and line disturbance attenuation. Specifications include primary and secondary voltages, thermal class, frequency, and protection index.
Technical Specifications: Detailed data is provided for each transformer type, including voltages, thermal class, ambient temperature, frequency, protection index, and dielectric strength.
Standards and Compliance: The document lists compliance with IEC and EN standards, ensuring safety and performance reliability.
Dimensions and Weight: Tables provide dimensions and weights for each transformer type, facilitating easy selection based on installation requirements.
Special Features: Customizable options include fuse holders, thermal protectors, and electrostatic screens. Safety transformers for swimming pools are available with different power ratings and line lengths.
Key Data: Includes tables with power ratings, dimensions, and reference numbers for easy identification and ordering, along with a technical selection guide and protection index information.
Autotransformers: Both single-phase and three-phase reversible autotransformers are discussed, intended for voltage adaptation without galvanic isolation. Technical details include voltage ratings, thermal class, and dielectric strength.
Line Reactors: Designed to attenuate notches and spikes, reduce harmonics, and limit inrush currents. Specifications include voltage drop, thermal class, and dielectric strength.
Specifications and Considerations for Control Circuits: Control circuits must consider maximum inrush power, continuous power requirements, power factor, and minimum admissible voltage.
Selection of Autotransformers for Motors: Consider mechanical load type and start type to account for peak currents and start frequency.
Protection of Transformers and Autotransformers: Protection against overloads and short circuits is recommended, focusing on the secondary side for overloads and short circuits.
Vector Groups and Connections: Vector groups indicate phase angles and connections, with capital letters for greater voltage windings and small letters for smaller voltage windings.
IP Protection Index: Provides ratings for protection against solid objects and water ingress, ranging from no protection to dust-tight and continuous immersion protection.
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Catalog excerpts

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TRANSFORMERS low voltage single three phase

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ERS S SFORM NSFORMER S TRANE-PHASEETTRRAANSFORMER L SING E-PHAS 04 THRE ORMERS 15 RANSF FORMERS AUTOT E PAG NS MERS UTOTRA R HASE A TRANSFO GLE-P HASE AUTO | SIN 17 | THREE-P 18 E PAG -PHASE REACTORS E SINGLE 20| THREE-PHAS 21| E PAG

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SINGLE-PHASE TRANSFORMERS (CONTROL TRANSFORMER Control and safety or isolating single-phase transformers. They can supply high instantaneous power necessary forthe correct ope- ration of contactors and other switch and control gear Great flexibility due to the double primary voltage and the serial-parallel connection. TIG welding in the core and the base-plates that prevent vibrations and noise. Fast and easy connection due to the clamp type terminal blocks. INSTANT. POWER IPRI VOLTAGE ■SEC CONNECTION THERMAL CLASS PROTECTION INDEX CONTROL TRANSFORMER SECONDARY CONNECTION POSSIBILITIES* SERIAL...

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SINGLE-PHASE TRANSFORMERS SAFETY OR ISOLATING TRANSFORMER

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 22 POWER TRANSFORMER IP00 Single-phase power isolating transformers dry type. Intended for change of voltages with galvanic isolation and/or attenuation of line disturbances.Manufactured with electrical steel with low losses and copper windings. On request we can manufacture transformers with other voltages, with taps, electrostatic screen, with thermal switch, etc. TR 22 POWER TRANSFORMER IP00 DIMENSIONS Dimensions may slightly vary according the voltages PRI VOLTAGE 230V SEC VOLTAGE 230V THERMAL CLASS B MAX AMBIENT TEMPERATURE 40°C FREQUENCY 50/60 Hz...

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 22 POWER TRANSFORMER IP23 POWER TR 22 POWER TRANSFORMER IP23 DIMENSIONS TR 22 POWER TRANSFORMER IP23 WHEELS KIT REFEERNCE

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 23 CUSTOMER DESIGN TRANSFORMER Single-phase special transformers manufactured on request (customer design). These transformers can be manufactured with fuse holders, thermal protectors, electrostatic screen. TIG welding in the core and the base-plates that prevent vibrations and noise. Fast and easy connection due to the clamp type terminal blocks that are delivered open. Terminal block +9 mm. Terminal block with current >32 A +15 mm. Currents >80 A (flat terminals or busbar) +50 mm. Dimensions may slightly vary according the voltages. In transformers...

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 26 SAFETY FOR SWIMMING-POOL TRANSFORMER IP20 Single-phase safety transformers intended to supply spotlights in swimming-pools, garden ponds, ornamental fountains and moist TECHNICAL PRI VOLTAGE SEC VOLTAGE THERMAL CLASS MAX AMBIENT TEMPERATURE FREQUENCY CLASS PROTECTION INDEX DIELECTRIC STRENGTH PRI-SEC DIELECTRIC STRENGTH BETWEEN WINDINGS & METALLIC PARTS locations, where for safety reasons it is necessary to supply with safety extra low voltage (SELV). It has several taps in the primary winding in order to compensate for the voltage drop in the transformer-spotlight...

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 26 SAFETY FOR SWIMMING-POOL TRANSFORMER IP00 Single-phase safety transformers intended to supply spotlights in swimming-pools, garden ponds, ornamental fountains and moist TECHNICAL PRI VOLTAGE SEC VOLTAGE THERMAL CLASS MAX AMBIENT TEMPERATURE FREQUENCY CLASS PROTECTION INDEX DIELECTRIC STRENGTH PRI-SEC DIELECTRIC STRENGTH BETWEEN WINDINGS & METALLIC PARTS locations, where for safety reasons it is necessary to supply with safety extra low voltage (SELV). It has several taps in the primary winding in order to compensate for the voltage drop in the transformer-spotlight...

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 26 SAFETY FOR SWIMMING-POOL TRANSFORMER NEW H Single-phase safety transformers intended to supply spotlights in swimming-pools, garden ponds, ornamental fountains and moist locations, where for safety reasons it is necessary to supply with safety extra low voltage (SELV). It has several taps in the primary winding in order to compensate for the voltage drop in the transformer-spotlight line conductors and thus gets an adequate brightness in every spotlight. On request we can manufacture transformers with other rated power or voltages, or with other line...

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 28 CONTROL & SAFETY OR ISOLATING TRANSFORMER NEW 2.2 Control and safety or isolating single-phase transformers. They can supply high instantaneous power necessary for the correct operation of contactors and other switch and control gear. IP20 protection index (finger safe). For mounting on DIN/EN rail up to 320 VA. Fast and easy connection due to the high capacity clamp type terminal blocks. INSTANT. POWER 0-230-400V 12-24, 24-48 or 115-230 V THERMAL CLASS B/F MAX AMBIENT TEMPERATURE 40°C FREQUENCY 50/60 Hz CLASS I PROTECTION INDEX IP20 DIELECTRIC STRENGTH...

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 28 CONTROL & SAFETY OR ISOLATING TRANSFORMER 2.2 DIMENSIONS TR 28 CONTROL & SAFETY OR ISOLATING TRANSFORMER 2.2 CONNECTION POSSIBILITIES SERIAL CONNECTION PARALLEL CONNECTION

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TRANSFORMERS SINGLE-PHASE TRANSFORMERS TR 28 CONTROL & SAFETY OR ISOLATING TRANSFORMER 5.2 DIMENSIONS TR 28 CONTROL & SAFETY OR ISOLATING TRANSFORMER 5.2 CONNECTION POSSIBILITIES SERIAL CONNECTION PARALLEL CONNECTION

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TRANSFORMERS THREE-PHASE TRANSFORMERS POWER ISOLATING TRANSFORMER IP00 Three-phase power isolating transformers dry type. Intended for change of voltages with galvanic isolation, attenuation of line dis- turbances and/or when it is necessary to change the neutral system. Connection with terminal blocks or with screws for flats terminals. Manufactured with electrical steel with low losses and copper windings. On request we can manufacture transformers with other voltages, with taps, electrostatic screen, with thermal switch, etc. PRI VOLTAGE 400V SEC VOLTAGE 230V THERMAL CLASS B/H MAX AMBIENT...

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THREE-PHASE TRANSFORMERS POWER ISOLATING TRANSFORMER POWER ISOLATING TRANSFORMER POWER ISOLATING TRANSFORMER

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SINGLE-PHASE AUTOTRANSFORMERS Single-phase reversible autotransformers, especially intended for use as a voltage adapter when an economical solution is required in applications where the galvanic isolation or attenuation of disturbances are not required. On request we can manufacture autotransformers with other voltages, with taps, with thermal switch, etc. VOLTAGES 0-230-400V THERMAL CLASS B MAX AMBIENT TEMPERATURE 40°C FREQUENCY 50/60 Hz CLASS I PROTECTION INDEX IP00 DIELECTRIC STRENGTH > 3 kV REVERSIBLE OTHER CHARACTERISTICS ON REQUEST Dimensions may slightly vary according the voltages TECHNICAL...

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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.