Back to: Protection Plug-In Current Transformer

SASK 421.4

PB_ASK421.4_online-zoom.jpg

Description

Protection plug-in current transformers for primary nominal currents from 200 A up to 400 A, secondary nominal current 5 A or 1 A (optional 2A) in protection class 5P5 and 10P5.

Technical Data

Therm. nominal continuous current I_cth: 1,2 x I_N
Therm. nominal short-time current I_th: 60 x I_N, 1 sec.
Max. operating voltage U_m: 0.72 kV
Isolation test voltage: 3 kV, U_eff, 50 Hz, 1 min.
Nominal rated frequency: 50...60 Hz
Isolation class: E

Bus bar 1: 20 x 10 mm
Round conductor: 20 mm
Width: 71 mm
Height: 85,5 mm
Depth: 58 mm