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MEASUREMENT CURRENT TRANSFORMER CTA 0

MEASUREMENT CURRENT TRANSFORMER CTA 0

MEASUREMENT CURRENT TRANSFORMER CTA 0

Product catalog summary
Technical Specifications:
  • Primary Current: 1-25A (refer to table)
  • Secondary Current: /5A; /1A
  • Operating Frequency: 40-60Hz
  • Accuracy Class: 0.5-1-3 (refer to table)
  • Performance: 3VA (refer to table)
  • Isolation: Dry in the air
  • Max. Voltage Reference for Insulation: 0.72kV
  • Test Voltage for Insulation: 3 kV, t = 60 sec. @ 50 Hz
  • Insulation Class: E (IEC 85 temp. max 120°C)
  • Permanent Overcurrent: 1.2 In
  • Short Circuit Thermal Current (Ith): 60 In
  • Dynamic Short Circuit Current (Idyn): 2.5 Ith
  • Safety Factor: N≤5
  • Degree of Protection: IP20
  • Material: Self-extinguishing thermoplastic (UL94 – V0)
  • Operating Temperature: -25 to +65 °C
  • Relative Humidity: max. 85%
  • Storage Conditions: -40 to +80 °C
  • Reference Standards: IEC/EN 61869-1; IEC/EN 61869-2
Product Description:
  • Winding primary current transformer
  • Protection current transformer
  • Fixing with DIN rail and wall mounting
  • 6mmq terminals connection
  • Small size, high performance, maximum precision
Product Range and Codes:
  • CTA 0 Type with various ranges and codes for different current ratings (1/1, 5/1, 10/1, etc.)
  • Measurement current transformers with specific codes for each range
Installation and Packaging:
  • Fixing template provided
  • Package includes 4 pieces
  • Terminal marking: Primary - 1 = P1-K, 2 = P2-L; Secondary - 3 = s1-k, 4 = s2-l
  • DIN rail mounting available
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Catalog excerpts

MEASUREMENT CURRENT TRANSFORMER CTA 0-1

TRASFORMATORI AMPEROMETRICI DI MISURA MEASUREMENT CURRENT TRANSFORMERS Descrizione / Description Trasformatore amperometrico a primario avvolto Trasformatore amperometrico da quadro Fissaggio su guida DIN e su parete Connessione con terminali da 6mmq Dimensioni ridotte Alte prestazioni Massima precisione Winding primary current transformer Protection current transformer Fixing with DIN rail and wall mounting 6mmq terminals connection Small size High performance Maximum precision Dati tecnici / Technical data Corrente primaria Corrente secondaria Frequenza di funzionamento Classe di precisione Prestazioni Isolamento Tensione max. riferimento per l’isolamento Tensione di prova per l’isolamento Classe d’isolamento Sovracorrente permanente Corrente termica di corto circuito ( I th ) Corrente dinamica di corto circuito ( I dyn ) Fattore di sicurezza Grado di protezione Materiale termoplastico autoestinguente Condizioni d’impiego; temperatura Umidità relativa (R.H.) Condizioni di stoccaggio Norme di riferimento Primary current Secondary current Operating frequency Accuracy class Performance Isolation Max. Voltage reference for insulation Test voltage for insulation Insulation class Permanent overcurrent Short circuit thermal current (I th) Dynamic short circuit current (I dyn) Safety factor Degree of protection Self extinguishing thermoplastic material Terms of use; temperature Relative humidity (R.H.) Storage conditions Reference standards 1-25A (vedi tabella / see table) / 5A ; / 1A 40-60Hz 0,5-1-3 (vedi tabella / see table) 3VA (vedi tabella / see table) a secco in aria / dry in the air 0,72kV 3 kV, t = 60 sec. @ 50 Hz E (IEC 85 temp. max 120°C) 1,2 In 60 In 2,5 Ith N≤5 IP20 UL94 – V0 -25+65 °C max. 85% -40+80 °C IEC/EN 61869-1 ; IEC/EN 61869-2 Tipo / Type Tipo Portata Range Codice Code Portata Range

 Open the catalog to page 1
MEASUREMENT CURRENT TRANSFORMER CTA 0-2

Dima di fissaggio / Fixing template Montaggio su guida DIN / DIN rail mounting Dimensioni / Dimension Siglatura morsetti / Terminal marking Primario / Primary : 1 = P1-K Secondario / Secondary : 3 = s1-k

 Open the catalog to page 2

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