E 347 low voltage current transformer

Transformer without primary
Insulation: Dry, in the air
Casing: self-extinguishing
Frequency: 50 60 Hz
Insulation reference voltage : 600 Volt (2500 Vac x 1 min)
TR6 resistance thermometer for industrial applications
Main featuresTemperature max: - 40° C + 600° C
Reference tolerance: UNI 7937, IEC 751 norms:
± 15° C at 0° C for A class (1/2 DIN)
± 30° C at 0° C for B class (1 DIN)
± 10° C at 0° C for 1/3 DIN class
Sensor ceramic insulation, PT100 at 0° C
Multipurpose
A303 phase detector

Based on amperometric detection, this device is not affected by motor-generated back Emf voltage nor by the network''s supply frequency.
The device uses its two internal transducers to check if the three currents of a three-phase system exist and what is their sequence
By checking two of the three currents in a three-phase system, the model S can detect the phase sequence (L12, L2, L3 or L1, L3, L2) or the absence of the these currents (single-phase mode)