MONOBLOCK THREE-PHASE CURRENT TRANSFORMER

FEATURES
Complies with NFC42-502, NF EN 60044-1 standards and EDF specification HN 42 S 55 (1971).
Nominal frequency: 50 Hz
Nominal insulation voltage: 0.6 kV
Highest voltage for equipment: 0.72 kV
Test voltage at 50 Hz for 1 minute: 3 kV
Impulse withstand voltage: 8 kV 1.2/50 µs
Secondary winding insulation class: H
Enclosure insulation class: E
Primary currents Ipn: 25-30-50-75-100-125-150-200
250-300-400-500 and 600A
Continuous thermal current: 1.2 Ipn
Short-circuit thermal current (Ith): 80 Ipn/1s
Secondary currents: 5A
Precision power: 3×3.75 to 3×15 VA
Accuracy class: 0.5. Class 0.2S is available for
3×3.75 VA and 3×7.5 VA
For other specifications, please contact us.

CONSTRUCTION
Enclosure and covers molded from shockproof, shatterproof, self-extinguishing material.
Metal parts treated for corrosion protection.
Allows multiple cables to be run in parallel.

The microblock includes:
• 3 current transformers.
• 4 phase and neutral voltage sockets.
• 3 10A HRC fuse circuit breakers on the
phase voltage sockets.
• 3 CT secondary short-circuit switches.
• 1 secondary terminal block with clear connection markings.
• 1 sealable transparent cover equipped with an
adjustable nameplate and 3 polarizing pins preventing the cover from being replaced if the 3 fuses are not replaced
on the voltage circuits.