Bender ISOSCAN W Series - Page 75

ISOSCAN® EDS440 and EDS441
External measuring current transformers for EDS440-LAF CTAF…
Load EDS440 47 Ω
Load EDS441, EDS440-LAF 1.5 kΩ
Rated insulation voltage, measuring current transformers 800 V
Connection of EDS measuring current transformers
Single wire ≥0.75 mm² 0…1 m
Single wire, twisted ≥0.75 mm² 1…10 m
Shielded cable ≥0.5 mm² 10…40 m
Recommended cable (shielded, shield connected to earth
on one side)
J-Y(St)Y min. 2 × 0.8
Measuring ranges, insulation fault location I
ΔL
Rated frequency range DC, 16.7…1000 Hz
Measuring range, insulation fault location (I
ΔL
) EDS440 1.5…50 mA
Measuring range, insulation fault location (I
ΔL
) EDS441 0.15…5 mA
Maximum permissible residual current see “Diagrams”, page 57
Measuring range, residual current measurement I
Δn
Measuring range, residual current measurement (I
Δn
) EDS440 0.1…20 A
Rated frequency range EDS440-… 50…1000 Hz
Measuring range, residual current measurement (I
Δn
) EDS441 0.1…2 A
Rated frequency range EDS441-… 50…60 Hz
LEDs
ON (operation LED) green
COM yellow
SERVICE yellow
ALARM I
ΔL
yellow
ALARM I
Δn
yellow
1…12 channel indication yellow
EDS44x_D00201_10_M_XXEN/11.2023 75